Tiny house regulations in Australia (state-by-state comparison)

Tiny Home

Tiny house regulations in Australia (state-by-state comparison)

July 13 | admin

Here’s a comparison of the tiny home rules across each Australian state.

Tiny home on foundation laws

State / Territory	Can be used as a primary dwelling?	Maximum size and dimensions	Minimum lot size requirements	Development Approval (DA) exemptions	Building permit requirements	Utility connections & plumbing	Open-market renting and tenancy
NSW	Yes, but it must comply with the National Construction Code (NCC) and your specific council Local Environmental Plan (LEP)	Strictly capped at 60m².	• Primary dwelling: A fixed primary dwelling requires a minimum lot size of 200 square metres to qualify for fast-tracked approval. • Secondary dwelling: A fixed secondary dwelling requires a minimum lot size of 450 square metres to qualify for fast-tracked approval.	20-day Complying Development Certificate (CDC) path bypasses DA if rules are met.	Mandatory (CDC or Construction Certificate); requires 7-star BASIX.	Separate connections and off-grid setups permitted with S68 approval.	Allowed for any open-market tenant.
VIC	Yes, because it's classified as a permanent residential structure (Class 1a building)	Strictly capped at 60m² gross floor, which includes any attached roofed outdoor areas like verandahs and carports	• Primary dwelling: A fixed primary dwelling requires a minimum lot size of 300 square metres to be exempt from a planning permit. • Secondary dwelling: A fixed small second dwelling requires a minimum lot size of 300 square metres to be exempt from a planning permit.	Exempt from DA on lots over 300m² with no overlays.	Mandatory Building Permit from a registered surveyor.	Must be all-electric (connecting to reticulated natural gas voids the exemption).	Allowed for any open-market tenant.
QLD	Yes, but it must comply with the National Construction Code (NCC) and local planning and zoning laws	Set by local councils. Ranging from 80 square metres in Brisbane and the Gold Coast, up to 100 square metres in Logan, and up to 120 square metres in Ipswich	• Primary dwelling: Regulated by individual local council zoning limits rather than a statewide tiny home minimum. • Secondary dwelling: There is no statewide minimum; lot size requirements are set locally by individual councils.	Accepted Development bypasses DA if local council size/setback rules are met.	Mandatory private building certification and 7-star NatHERS.	Must share sub-meters; independent meters trigger massive infrastructure fees ($15k-$30k).	Allowed for any open-market tenant.
WA	Yes, because it's classified as a permanent residential structure (Class 1a building)	Capped at a generous 70 square metres of internal floor area, which explicitly excludes external features like unroofed patios and garages	Abolished (no minimum).	Deemed-to-comply framework completely skips DA.	Mandatory Building Permit (fast-tracked CDC path takes 10 days).	Must achieve 7-star NatHERS; off-grid/greywater systems allowed.	Allowed long-term; short stays require STRA registration.
SA	Yes, but it must comply with the National Construction Code and require formal Planning and Building approval through your local council	Capped at 70 square metres of floor area and is restricted to a maximum of two bedrooms	No strict minimum, but must meet standard siting rules.	Deemed-to-Satisfy (DTS) fast-track path via the online PlanSA portal.	Mandatory Building Consent.	Must strictly share water/power/sewer to use fast-track. High SA Water fees apply.	Allowed using the mandatory Form A1 & bond lodgment.
TAS	Yes, but it must go through a formal council development process and comply with strict building codes	A fixed secondary residence is currently capped at 60 square metres of gross floor area (excluding unroofed decks), though a pending amendment aims to increase this to 90 square metres	• Primary dwelling: Standard zoning rules apply; creating a new standalone title generally requires a lot of 450 to 600 square metres. • Secondary dwelling: There is no strict square-metre minimum, but the lot must contain exactly one existing primary home.	No Permit Required (NPR) pathway bypasses DA if rules are met.	Mandatory Building Approval (BA) via private building surveyor.	Independent utility meters trigger a "Multiple Dwelling" DA reclassification.	Allowed under the Residential Tenancies Act.
ACT	Yes, but it must comply with the National Construction Code (NCC). Also requires a mandatory Development Application (DA) for planning permission and a Building Approval (BA) for construction safety.	A fixed secondary residence must fit within a strict size window of between 40 square metres and 90 square metres of gross floor area	• Primary dwelling: Tiny home-specific minimum lot sizes do not apply to a primary dwelling. • Secondary dwelling: A fixed secondary residence strictly requires a minimum lot size of 500 square metres.	No exemptions; a full Development Application (DA) is mandatory for every build.	Mandatory Building Approval (BA) via private certifier.	Mandatory Water Sensitive Urban Design (rainwater tank); independent billing requires heavy upgrades.	Allowed, but only if you provide at least one dedicated, off-street parking space exclusively for the tiny home tenant. The tenant must also be provided with a dedicated Principal Private Open Space (PPOS) of at least 28 square metres, featuring a minimum clear dimension of 4 metres.
NT	Yes, providing it complies with the Northern Territory Planning scheme and local council zoning bylaws.	A fixed independent unit is capped at a maximum gross floor area of 75 square metres in urban zones and up to 100 square metres in rural zones, though there is no size limit if it is built as a primary dwelling.	• Primary dwelling: A fixed primary dwelling requires a minimum lot size of 300 square metres to avoid a mandatory full planning assessment • Secondary dwelling: An urban fixed secondary dwelling requires a minimum lot size of 600 square metres	Permitted Use bypasses DA if zoning/setback rules are met.	Mandatory via NT-registered certifier. Coastal areas require heavy Cyclone Region C engineering.	Must share power/water connections and vehicle access to skip the DA phase.	Allowed for any open-market tenant.

State / Territory	Can be used as a primary dwelling?	Maximum size and dimensions	Minimum lot size requirements	Development Approval (DA) exemptions	Building permit requirements	Utility connections & plumbing	Open-market renting and tenancy
NSW	Yes, but it must comply with the National Construction Code (NCC) and your specific council Local Environmental Plan (LEP)	Strictly capped at 60m².	• Primary dwelling: A fixed primary dwelling requires a minimum lot size of 200 square metres to qualify for fast-tracked approval. • Secondary dwelling: A fixed secondary dwelling requires a minimum lot size of 450 square metres to qualify for fast-tracked approval.	20-day Complying Development Certificate (CDC) path bypasses DA if rules are met.	Mandatory (CDC or Construction Certificate); requires 7-star BASIX.	Separate connections and off-grid setups permitted with S68 approval.	Allowed for any open-market tenant.
	Can be used as a primary dwelling?	Maximum size and dimensions	Minimum lot size requirements	Development Approval (DA) exemptions	Building permit requirements	Utility connections & plumbing	Open-market renting and tenancy
VIC	Yes, because it's classified as a permanent residential structure (Class 1a building)	Strictly capped at 60m² gross floor, which includes any attached roofed outdoor areas like verandahs and carports	• Primary dwelling: A fixed primary dwelling requires a minimum lot size of 300 square metres to be exempt from a planning permit. • Secondary dwelling: A fixed small second dwelling requires a minimum lot size of 300 square metres to be exempt from a planning permit.	Exempt from DA on lots over 300m² with no overlays.	Mandatory Building Permit from a registered surveyor.	Must be all-electric (connecting to reticulated natural gas voids the exemption).	Allowed for any open-market tenant.
	Can be used as a primary dwelling?	Maximum size and dimensions	Minimum lot size requirements	Development Approval (DA) exemptions	Building permit requirements	Utility connections & plumbing	Open-market renting and tenancy
QLD	Yes, but it must comply with the National Construction Code (NCC) and local planning and zoning laws	Set by local councils. Ranging from 80 square metres in Brisbane and the Gold Coast, up to 100 square metres in Logan, and up to 120 square metres in Ipswich	• Primary dwelling: Regulated by individual local council zoning limits rather than a statewide tiny home minimum. • Secondary dwelling: There is no statewide minimum; lot size requirements are set locally by individual councils.	Accepted Development bypasses DA if local council size/setback rules are met.	Mandatory private building certification and 7-star NatHERS.	Must share sub-meters; independent meters trigger massive infrastructure fees ($15k-$30k).	Allowed for any open-market tenant.
	Can be used as a primary dwelling?	Maximum size and dimensions	Minimum lot size requirements	Development Approval (DA) exemptions	Building permit requirements	Utility connections & plumbing	Open-market renting and tenancy
WA	Yes, because it's classified as a permanent residential structure (Class 1a building)	Capped at a generous 70 square metres of internal floor area, which explicitly excludes external features like unroofed patios and garages	Abolished (no minimum).	Deemed-to-comply framework completely skips DA.	Mandatory Building Permit (fast-tracked CDC path takes 10 days).	Must achieve 7-star NatHERS; off-grid/greywater systems allowed.	Allowed long-term; short stays require STRA registration.
	Can be used as a primary dwelling?	Maximum size and dimensions	Minimum lot size requirements	Development Approval (DA) exemptions	Building permit requirements	Utility connections & plumbing	Open-market renting and tenancy
SA	Yes, but it must comply with the National Construction Code and require formal Planning and Building approval through your local council	Capped at 70 square metres of floor area and is restricted to a maximum of two bedrooms	No strict minimum, but must meet standard siting rules.	Deemed-to-Satisfy (DTS) fast-track path via the online PlanSA portal.	Mandatory Building Consent.	Must strictly share water/power/sewer to use fast-track. High SA Water fees apply.	Allowed using the mandatory Form A1 & bond lodgment.
	Can be used as a primary dwelling?	Maximum size and dimensions	Minimum lot size requirements	Development Approval (DA) exemptions	Building permit requirements	Utility connections & plumbing	Open-market renting and tenancy
TAS	Yes, but it must go through a formal council development process and comply with strict building codes	A fixed secondary residence is currently capped at 60 square metres of gross floor area (excluding unroofed decks), though a pending amendment aims to increase this to 90 square metres	• Primary dwelling: Standard zoning rules apply; creating a new standalone title generally requires a lot of 450 to 600 square metres. • Secondary dwelling: There is no strict square-metre minimum, but the lot must contain exactly one existing primary home.	No Permit Required (NPR) pathway bypasses DA if rules are met.	Mandatory Building Approval (BA) via private building surveyor.	Independent utility meters trigger a "Multiple Dwelling" DA reclassification.	Allowed under the Residential Tenancies Act.
	Can be used as a primary dwelling?	Maximum size and dimensions	Minimum lot size requirements	Development Approval (DA) exemptions	Building permit requirements	Utility connections & plumbing	Open-market renting and tenancy
ACT	Yes, but it must comply with the National Construction Code (NCC). Also requires a mandatory Development Application (DA) for planning permission and a Building Approval (BA) for construction safety.	A fixed secondary residence must fit within a strict size window of between 40 square metres and 90 square metres of gross floor area	• Primary dwelling: Tiny home-specific minimum lot sizes do not apply to a primary dwelling. • Secondary dwelling: A fixed secondary residence strictly requires a minimum lot size of 500 square metres.	No exemptions; a full Development Application (DA) is mandatory for every build.	Mandatory Building Approval (BA) via private certifier.	Mandatory Water Sensitive Urban Design (rainwater tank); independent billing requires heavy upgrades.	Allowed, but only if you provide at least one dedicated, off-street parking space exclusively for the tiny home tenant. The tenant must also be provided with a dedicated Principal Private Open Space (PPOS) of at least 28 square metres, featuring a minimum clear dimension of 4 metres.
	Can be used as a primary dwelling?	Maximum size and dimensions	Minimum lot size requirements	Development Approval (DA) exemptions	Building permit requirements	Utility connections & plumbing	Open-market renting and tenancy
NT	Yes, providing it complies with the Northern Territory Planning scheme and local council zoning bylaws.	A fixed independent unit is capped at a maximum gross floor area of 75 square metres in urban zones and up to 100 square metres in rural zones, though there is no size limit if it is built as a primary dwelling.	• Primary dwelling: A fixed primary dwelling requires a minimum lot size of 300 square metres to avoid a mandatory full planning assessment. • Secondary dwelling: An urban fixed secondary dwelling requires a minimum lot size of 600 square metres.	Permitted Use bypasses DA if zoning/setback rules are met.	Mandatory via NT-registered certifier. Coastal areas require heavy Cyclone Region C engineering.	Must share power/water connections and vehicle access to skip the DA phase.	Allowed for any open-market tenant.

Tiny home on wheels laws

State / Territory	Can be used as a primary dwelling?	Can be used as a secondary dwelling?	Maximum size and dimensions	Dwelling guidelines	Building Permit Requirements	Open-Market Renting and Tenancy
NSW	Generally not permitted without council approval.	Yes.	2.5m wide, 4.3m high, 12.5m long (19m combined), 4.5 tonnes ATM.	60 days/year for guests; indefinitely if occupied by a household member.	Exempt if it remains mobile and road-registrable.	Cannot be rented on the open market without a DA (must be a household member for exemption).
VIC	Generally no. Living on private land is strictly regulated and generally prohibited without council approval.	Yes.	2.5m wide, 4.3m high, 12.2m long, 4.5 tonnes ATM.	Varies heavily by council (often 28–60 days/year or 2 consecutive nights).	Exempt if registered and readily removable; required if un-towable.	Strictly restricted; generally only for short-term/casual stays without a DA.
QLD	Generally not permitted without council approval.	Many councils allow them to be used temporarily or as "ancillary/incidental" structures under specific local laws.	2.5m wide, 4.3m high, 12.5m long, 4.5 tonnes ATM.	Some councils allow a family member or guest to temporarily live in a caravan in the backyard, as long as it remains "subordinate" to the main house (e.g., they rely on the main house for amenities like kitchens or laundry).	Exempt if registered and kept on wheels.	Highly restricted to household/subordinate use.
WA	Yes, but typically only permitted as temporary accommodation (e.g., while building a house).	Yes.	2.5m wide, 4.3m high, 12.5m long, 4.5 tonnes ATM.	5 nights per 28 days permit-free; up to 24-month renewable permits available via council.	Exempt if it remains a registrable vehicle.	Requires a 24-month permit for long-term; short stays require STRA registry.
SA	Generally not permitted without council approval.	Yes.	2.5m wide, 4.3m high, 12.5m long, 4.5 tonnes ATM.	Usually 30 to 60 days/year; up to 2 years for disaster recovery.	Exempt if mobile; triggers building consent if occupied permanently.	Mostly restricted to short-term guests/ancillary use unless permitted.
TAS	Generally not permitted without council approval.	Generally restricted.	2.5m wide, 4.3m high, 4.5 tonnes ATM.	Max 30 days per calendar year; indefinitely if used as an ancillary room for a household member.	Exempt if road-ready and wheels remain intact.	Restricted to household members under the ancillary model.
ACT	Generally no.	Generally restricted.	2.5m wide, 4.3m high, 12.5m long, 4.5 tonnes ATM.	Permitted only for short-term guests or pure storage.	Exempt from structural building approvals, but requires a DA for ongoing residential use.	Illegal to rent as a standalone home without a full DA.
NT	Generally no. Restricts accommodation to a temporary residence.	Generally restricted.	2.5m wide, 4.3m high, 12.5m long, 4.5 tonnes ATM.	Up to 6 months for visitors; indefinitely for a dependent of the main house.	Exempt (no NCC certification needed) while it remains a vehicle.	Standalone open-market renting implies development; exemptions rely on visitor/dependent status.

State / Territory	Can be used as a primary dwelling?	Can be used as a secondary dwelling?	Maximum size and dimensions	Dwelling guidelines	Building Permit Requirements	Open-Market Renting and Tenancy
NSW	Generally not permitted without council approval.	Yes.	2.5m wide, 4.3m high, 12.5m long (19m combined), 4.5 tonnes ATM.	60 days/year for guests; indefinitely if occupied by a household member.	Exempt if it remains mobile and road-registrable.	Cannot be rented on the open market without a DA (must be a household member for exemption).
	Can be used as a primary dwelling?	Can be used as a secondary dwelling?	Maximum size and dimensions	Dwelling guidelines	Building Permit Requirements	Open-Market Renting and Tenancy
VIC	Generally no. Living on private land is strictly regulated and generally prohibited without council approval.	Yes.	2.5m wide, 4.3m high, 12.2m long, 4.5 tonnes ATM.	Varies heavily by council (often 28–60 days/year or 2 consecutive nights).	Exempt if registered and readily removable; required if un-towable.	Strictly restricted; generally only for short-term/casual stays without a DA.
	Can be used as a primary dwelling?	Can be used as a secondary dwelling?	Maximum size and dimensions	Dwelling guidelines	Building Permit Requirements	Open-Market Renting and Tenancy
QLD	Generally not permitted without council approval.	Many councils allow them to be used temporarily or as "ancillary/incidental" structures under specific local laws.	2.5m wide, 4.3m high, 12.5m long, 4.5 tonnes ATM.	Some councils allow a family member or guest to temporarily live in a caravan in the backyard, as long as it remains "subordinate" to the main house (e.g., they rely on the main house for amenities like kitchens or laundry).	Exempt if registered and kept on wheels.	Highly restricted to household/subordinate use.
	Can be used as a primary dwelling?	Can be used as a secondary dwelling?	Maximum size and dimensions	Dwelling guidelines	Building Permit Requirements	Open-Market Renting and Tenancy
WA	Yes, but typically only permitted as temporary accommodation (e.g., while building a house).	Yes.	2.5m wide, 4.3m high, 12.5m long, 4.5 tonnes ATM.	5 nights per 28 days permit-free; up to 24-month renewable permits available via council.	Exempt if it remains a registrable vehicle.	Requires a 24-month permit for long-term; short stays require STRA registry.
	Can be used as a primary dwelling?	Can be used as a secondary dwelling?	Maximum size and dimensions	Dwelling guidelines	Building Permit Requirements	Open-Market Renting and Tenancy
SA	Generally not permitted without council approval.	Yes.	2.5m wide, 4.3m high, 12.5m long, 4.5 tonnes ATM.	Usually 30 to 60 days/year; up to 2 years for disaster recovery.	Exempt if mobile; triggers building consent if occupied permanently.	Mostly restricted to short-term guests/ancillary use unless permitted.
	Can be used as a primary dwelling?	Can be used as a secondary dwelling?	Maximum size and dimensions	Dwelling guidelines	Building Permit Requirements	Open-Market Renting and Tenancy
TAS	Generally not permitted without council approval.	Generally restricted.	2.5m wide, 4.3m high, 4.5 tonnes ATM.	Max 30 days per calendar year; indefinitely if used as an ancillary room for a household member.	Exempt if road-ready and wheels remain intact.	Restricted to household members under the ancillary model.
	Can be used as a primary dwelling?	Can be used as a secondary dwelling?	Maximum size and dimensions	Dwelling guidelines	Building Permit Requirements	Open-Market Renting and Tenancy
ACT	Generally no.	Generally restricted.	2.5m wide, 4.3m high, 12.5m long, 4.5 tonnes ATM.	Permitted only for short-term guests or pure storage.	Exempt from structural building approvals, but requires a DA for ongoing residential use.	Illegal to rent as a standalone home without a full DA.
	Can be used as a primary dwelling?	Can be used as a secondary dwelling?	Maximum size and dimensions	Dwelling guidelines	Building Permit Requirements	Open-Market Renting and Tenancy
NT	Generally no. Restricts accommodation to a temporary residence.	Generally restricted.	2.5m wide, 4.3m high, 12.5m long, 4.5 tonnes ATM.	Up to 6 months for visitors; indefinitely for a dependent of the main house.	Exempt (no NCC certification needed) while it remains a vehicle.	Standalone open-market renting implies development; exemptions rely on visitor/dependent status.

Don't get left behind!

Be the first to learn about the latest updates in Australia’s tiny home sector.

New South Wales

Tiny homes on foundations

Classification & sizing rules: Officially classified as a Class 1a building. When built on a block with a main house, it is defined as a secondary dwelling (granny flat), with its gross floor area strictly capped at 60 square metres. Building a permanent tiny home as a sole residence on an empty block requires a minimum lot size of 200 square metres to qualify for fast-track pathways.
Approval pathways (CDC vs. DA): You can get a fast-tracked Complying Development Certificate (CDC) via a private certifier in about 20 days if your residential lot is 450 square metres or larger and free from environmental overlays (like bushfire or heritage). A full, merit-based DA to the local council is required if the lot is under 450 square metres, sits in a specialized rural zone, or has environmental overlays.
Building standards & rental rules: Dwellings require a mandatory BASIX certificate ensuring a 7-star NatHERS equivalent for thermal efficiency. Some councils (like the City of Sydney) ban new indoor gas appliances, requiring all-electric builds. Long-term renting to anyone on the open market is permitted (bedrooms must be at least 7 square metres). Short-term holiday rentals (Airbnb) require registration on the NSW STRA Register, and unhosted listings are capped at 180 nights per year in Greater Sydney and certain regional areas.

Tiny homes on wheels

Road regulations & size limits: Legally classified as trailers and must be registered with Transport for NSW. Standard limits are a maximum 4.5-tonne Aggregate Trailer Mass (ATM), 2.5m width, 4.3m height, and 19m combined towing length. Homes up to 3.5m wide can be towed without an individual permit, provided you use oversize signs, flags, amber flashing lights (if over 3.0m), and avoid urban peak hours.
Council approvals & exemptions: Placing a THOW on vacant land as a primary residence requires a full Development Application (DA). However, you can bypass council approvals if the THOW is used indefinitely by a household member on land with an existing primary dwelling, or used by short-term guests for up to 2 consecutive days per visit (max 60 days total per year). It is also exempt for up to 2 years to shelter people displaced by natural disasters or to house seasonal farm workers.
The utility warning: To retain “moveable dwelling” status and avoid standard building codes, you must use quick-disconnect leads and hoses. Connecting directly to municipal sewer, water, or stormwater mains triggers a mandatory approval.

For more details, read our comprehensive post on tiny house laws in NSW.

Victoria

Tiny homes on foundations

Classification & sizing rules: Legally defined as a Small Second Dwelling (which replaced the old Dependent Person’s Unit framework). It must be built behind the front wall line of the primary house and is strictly capped at a maximum gross floor area of 60 square metres, including attached carports or porches.
Approval pathways: You do not need a planning permit if your property is on a lot of 300 square metres or larger and free from flooding, heritage, or environmental overlays. Lots under 300 square metres require a planning permit, which can utilize the 10-day “VicSmart” fast-track system. A Building Permit from a registered surveyor is always mandatory before construction begins.
Building standards & rental rules: Must meet Class 1a standards and achieve a 7-star NatHERS energy rating. To qualify for the planning permit exemption, the dwelling is strictly barred from connecting to reticulated natural gas and must be all-electric. Regulations also mandate a clear, all-weather pedestrian path at least 1 metre wide from the street to the entrance. The home can be rented to anyone on the open market.

Tiny homes on wheels

Road regulations & size limits: Regulated as a caravan or light trailer. To be towed without an oversize permit, limits are a 4.5-tonne max ATM, 2.5m width, 4.3m height, and a maximum length of 12.2m including the drawbar. VicRoads exempts THOWs under 4.5 tonnes from needing a mechanical Certificate of Roadworthiness (RWC) for registration, though a physical VIN and chassis plate inspection is required.
Council approvals & stays: Regulations are highly fragmented by local council bylaws. Generally, unpermitted short-term guest stays are allowed for 28 to 60 days per year, though strict councils cap this at 2 consecutive nights per visit. Planning permits are required for vacant blocks or longer stays, though some regions (like the Surf Coast Shire) are running flexible long-term placement pilot programs until late 2026.
Reclassification directive: Per the State Building Surveyor directive, if a tiny home becomes unregistered, loses its ability to be towed, or is hard-plumbed into permanent utility infrastructure, it is reclassified as a permanent building and strictly requires a building permit.

For more details, read our comprehensive post on tiny house laws in Victoria.

South Australia

Tiny homes on foundations

Classification & sizing rules: Officially classified as “Ancillary Accommodation” and assessed as a Class 1a building. State reforms increased the maximum floor area cap from 60 to 70 square metres. It is restricted to a maximum of two bedrooms but can be fully self-contained with its own kitchen, bathroom, and laundry.
Approval pathways: Centralized through the digital PlanSA portal. You can use a fast-tracked “Deemed-to-Satisfy” (DTS) planning consent path if the design stays under the 70m² cap, sits behind the main house building line, and strictly shares its water, power, and sewer connections with the primary house. Requesting independent utility meters pushes the application into a longer “Performance Assessed” review. A Wastewater Approval from the council’s health department ($400 to $650) is mandatory before plumbing begins.
Utility infrastructure fees & rental rules: SA Water treats these builds as secondary dwellings and charges a mandatory “Infill Augmentation Fee” to fund the network, totaling approximately $5,120. Installing a separate water meter costs an additional $4,000 or more. Dwellings can be rented to anyone on the open market. Landlords must use the prescribed standard “Form A1” application to screen tenants, lodge bonds with Consumer and Business Services (CBS), and expect a separate council rates assessment once occupied.

Tiny homes on wheels

Road regulations & size limits: Classified as a caravan or moveable dwelling. Must be registered through the Department for Infrastructure and Transport (DIT) and comply with VSB1 national standards: maximum 4.5-tonne ATM, 2.5m width, 4.3m height, and 19m combined towing length. Trailers with a Gross Trailer Mass (GTM) over 750 kg must have brakes, and those over 2 tonnes require an automatic breakaway system. You can tow a compliant THOW on a standard Class C car license.
Council approvals & stays: Using a THOW as a primary residence on a vacant block constitutes a “Change in Land Use” and requires a full Development Application (DA) via PlanSA. For properties with an existing main house, local bylaws generally permit unapproved guest stays for 30 to 60 days per year, provided the use is ancillary (sharing main house facilities like the laundry) and it is not fixed to the ground. Natural disaster victims are granted an emergency exemption to live in a THOW for up to two years without a DA.
The plumbing trap: Hard-plumbing the home with rigid, permanent onsite pipes instead of flexible caravan hoses will cause local councils to reclassify the structure as a permanent building, triggering full Building Consent and compliance requirements.

For more details, read our comprehensive post on tiny house laws in South Australia.

Queensland

Tiny homes on foundations

Classification & approval pathways: Classified as a Secondary Dwelling. If the property has no restrictive environmental overlays (like flooding or bushfire) and meets local council benchmarks, it is considered “Accepted Development,” allowing you to bypass a council planning permit and go straight to a private building certifier.
Decentralized sizing caps: Maximum size limits are determined by local councils and are highly generous compared to other states: Brisbane and Gold Coast cap them at 80 square metres; Logan allows 70 to 100 square metres depending on lot size; Redland allows 85 to 112 square metres; and Ipswich allows up to 120 square metres on blocks over 800 square metres without a planning DA.
Building codes & infrastructure charges: Must meet the Queensland Development Code, requiring setbacks of 1.5m from side/rear fences, 6m from the street, a max site coverage of 50-60%, a 7-star NatHERS rating, and interconnected smoke alarms. To avoid a massive “Dual Occupancy” Infrastructure Charge ($15,000 to $30,000), the home must remain strictly subordinate by staying under size caps, sharing the driveway, and using private sub-meters rather than independent main meters. Noosa Shire waives this fee entirely. Dwellings can be rented to anyone on the open market.

Tiny homes on wheels

Road regulations & size limits: Treated as a vehicle or trailer provided it is not permanently affixed or plumbed into the ground. Must be registered with the Department of Transport and Main Roads (TMR) and fit standard ADR limits: maximum 2.5m width, 4.3m height, 12.5m trailer length, and a 4.5-tonne max ATM. Exceeding 4.5 tonnes classifies it as a heavy vehicle, requiring a different license class and commercial safety inspections.
Fragmented council rules: Local bylaws are highly fragmented. Brisbane City Council is flexible, with no strict day limits for backyard stays if the home doesn’t cause a “nuisance”. However, the Sunshine Coast caps unpermitted living at 4 weeks per year; Gympie caps it at 2 weeks in any 8-week period; and the Gold Coast strictly limits stays to prevent unofficial caravan parks.
Permits & vacant land: Living in a THOW on vacant land is generally prohibited without a formal Material Change of Use (MCU) planning permit, which usually requires an active building project for a permanent house. Staying past local grace periods requires a Temporary Home permit ($500 to $1,500), proving access to potable water and approved wastewater management. Farmers can house seasonal agricultural workers in THOWs without a DA until December 2, 2026.

For more details, read our comprehensive post on tiny house laws in Queensland.

Western Australia

Tiny homes on foundations

Classification, size & lot rules: Classified as an “ancillary dwelling”. Under the 2024 R-Codes amendments, they can reach a generous 70 square metres of internal floor area (patios, carports, and unroofed verandahs do not count toward this limit). Minimum lot size requirements have been completely abolished, meaning a permanent tiny home can be built on almost any suburban block, cottage lot, strata property, or townhouse block.
Approval pathways: You can bypass the local council’s Development Application (DA) entirely if your design meets “deemed-to-comply” standards, such as the 70m² limit and standard setbacks (usually 1 to 1.5m for side boundaries). A Building Permit is strictly mandatory; using a private surveyor to issue a Certificate of Design Compliance (CDC) forces the council to process the building permit within 10 business days.
Environmental standards & renting: Must meet Class 1a standards, achieving a 7-star NatHERS rating (mandated May 2025) and a “Whole-of-Home” energy budget starting in 2026. Designated Bushfire Prone Areas require a mandatory Bushfire Attack Level (BAL) assessment, which may require fire-rated windows and non-combustible cladding. Long-term open-market renting is permitted. Short-term rentals (Airbnb) must register on the statewide STRA Register from January 2025, and unhosted metropolitan Perth stays are capped at 90 nights per year without council planning approval.

Tiny homes on wheels

Road regulations & size limits: Regulated as a light or heavy trailer by the Department of Transport. Standard ADR limits apply: max 4.5-tonne ATM, 2.5m width, 4.3m height, and a 12.5m single trailer length. If the design is extra-wide (over 2.5m), you must apply for an “Oversize” permit through Main Roads WA, which mandates yellow warning signs, flags, peak-hour metro travel bans, and an escort vehicle if the width exceeds 3.5m.
Long-term living & short stays: Highly progressive rules following a September 2024 amendment. Local councils can grant renewable permits to live full-time in a THOW on private property for up to 24 months, provided you have an approved wastewater management plan (septic, Aerobic Treatment Unit, or approved greywater diversion). Casual, unpermitted stays are allowed for up to 5 nights within any 28-day period.

For more details, read our comprehensive post on tiny house laws in Western Australia.

Tasmania

Tiny homes on foundations

Classification & sizing rules: Officially classified under the planning scheme as an “Ancillary Dwelling” or “Secondary Residence” and strictly capped at 60 square metres of gross floor area. A draft amendment (SPP Amendment 01/2026) aims to increase this to 90m², but building over 60m² before it is formally enacted requires a lengthy Discretionary Planning Application.
Approval pathways & driveway rules: Offers a streamlined “No Permit Required” (NPR) pathway to bypass the council planning permit (DA) phase if the block has only one existing house, the tiny home stays under 60m², keeps a max height of 5.0m, and maintains 1.5m side/rear setbacks. A structural Building Approval (BA) from a private surveyor and a council Plumbing Permit (Form 3) are always mandatory. The tiny home must share the main house’s driveway, parking, and utility connections; installing a separate TasNetworks meter or new curb cut reclassifies it as a “Multiple Dwelling,” triggering severe zoning restrictions and heavy infrastructure levies.
Building codes & renting: Must meet Class 1a standards, but Tasmania has frozen the 7-star energy mandate, allowing builders to use more affordable 6-star guidelines until May 2027. Mapped Bushfire-Prone Areas require a BAL assessment and fire-retardant materials. Open-market leasing is permitted. Short-term holiday rentals require registration with Service Tasmania and a 5% short-stay levy.

Tiny homes on wheels

Road regulations & size limits: Bypasses building regulations only if it legally qualifies as a vehicle registered as a light trailer with the Motor Vehicle Registry. This requires entry onto the federal Register of Approved Vehicles (RAV) and compliance with national VSB1 standards (max 2.5m width, 4.3m height, 4.5-tonne max ATM). Any THOW over 2,000 kg strictly requires an automatic breakaway braking system.
Council approvals & stays: Under standard municipal bylaws, you can only occupy a self-contained THOW on private property for a maximum of 30 days per calendar year without a permit. Longer stays require a Caravan Licence or Temporary Occupancy Permit. Full-time living on vacant land triggers a complex Discretionary Planning Application, and councils typically only grant temporary 12-to-24-month permits if an active building permit for a main house is underway on the same block.
Exemptions & reclassification: The “ancillary use” model allows indefinite use without council intervention if the THOW is occupied by a primary household member and acts purely as an extra bedroom without an independent kitchen or laundry. The moment you hard-plumb the unit into a mains sewer/septic or attach it to a permanent timber deck, it is reclassified as a permanent building.

For more details, read our comprehensive post on tiny house laws in Tasmania.

Northern Territory

Tiny homes on foundations

Classification & sizing rules: Officially classified as a “Dwelling—Independent” (independent unit) and must comply fully with Class 1a standards, including independent kitchen, bathroom, and laundry facilities. Planning reforms allow generous footprints: up to 75 square metres of gross floor area in urban residential zones, increasing to 100 square metres in designated rural zones.
Approval pathways & service sharing: Qualifies as a “Permitted Use” (bypassing the DA planning phase) if it meets the baseline size caps and standard boundary setbacks (1.5m in urban zones, 10m in rural zones). To keep this fast-track status, it must share basic services (like reticulated power and a single street driveway) with the main house. A structural Building Permit from an NT-registered private certifier is always mandatory.
Cyclone engineering & extra fees: In the coastal Top End (Greater Darwin), the home must be heavily engineered to comply with Wind Region C (Cyclonic) standards, requiring heavy-duty structural steel framing, reinforced concrete footings, and debris-impact resistant windows. Hazard overlays like Riverine Flooding (Alice Springs) or Storm Surge Areas void the DA exemption. Open-market renting is permitted under standard tenancy rules. Municipal councils can issue a Developer Contribution Notice for public infrastructure loads, and the Power and Water Corporation may issue Capital Contribution charges if the local grid is strained.

Tiny homes on wheels

Road regulations & size limits: Classified as a trailer, requiring MVR registration and entry onto the federal RAV. Standard general-access road limits apply: max 2.5m width, 4.3m height, 12.5m trailer length, and a 4.5-tonne max ATM. Over 2,000 kg requires an automatic electronic breakaway braking system, and exceeding 4.5 tonnes ATM requires a Light Rigid (LR) or Medium Rigid (MR) driver’s license.
Generous central stays: Managed centrally under “Caravan Accommodation” rather than fragmented local council bylaws. You can host a visitor in a THOW on private property for up to 6 months without any planning permit or council approval. Furthermore, if the occupant is a dependent of the primary resident, they can live in the mobile home indefinitely without council permits or building certification. Temporary living is also permitted while actively building a permanent primary house.
The reclassification trap: Hard-wiring to the grid, connecting to rigid fixed plumbing, removing the wheels, or anchoring to a deck legally reclassifies it as a building, forcing full building compliance. Wastewater must be routed to approved holding tanks or dump points; illegal dumping carries heavy public health penalties.

For more details, read our comprehensive post on tiny house laws in the Northern Territory.

Australian Capital Territory

Tiny homes on foundations

Block requirements & strict sizing: Officially called a secondary residence. To build one, your residential block must have a total land area of at least 500 square metres; it is strictly prohibited on smaller blocks. The gross floor area must fit within a rigid window of between 40 square metres (minimum liveability) and 90 square metres (maximum density).
Approval pathways: There is no fast-track or exempt development path; you must secure a DA for planning and a BA for structural safety. However, recent planning changes removed the requirement to pay for and process a separate Lease Variation application by adding an automatic statutory entitlement to single-dwelling Crown leases.
Double-layered accessibility standards: Designs must satisfy two frameworks: the planning stage (DA) must comply with adaptable housing standards to ensure the layout can be adapted for wheelchair users (wide turning circles, overlapping circulation zones), and the building stage (BA) must meet livable housing design standards, requiring step-free entry, 820mm wide doorways, 1000mm hallways, a ground-floor bathroom, and reinforced walls for future grab rails.
Utility costs & environmental mandates: Icon Water charges a Water and Sewerage Capital Contribution (WSCC) fee of roughly $961 per net Equivalent Population increase before connection. New properties requiring a planning permit are prohibited from connecting to natural gas and must be entirely all-electric. Water sensitive urban design policies mandate a 40% reduction in mains water use, requiring a rainwater tank hard-plumbed to the toilet and laundry. Composting toilets are rarely approved in urban or suburban zones.
Open-market rental quotas: You can rent the home out, but you must legally provide at least one dedicated, off-street parking space for the tenant (which cannot be unscreened in the front zone). The tenant must also be provided with a dedicated Principal Private Open Space (PPOS) of at least 28 square metres that is directly accessible from a core living or dining room (it cannot connect solely via a bedroom).

Tiny homes on wheels

Road regulations & inspections: Classified as a caravan or light trailer. Must be entered into the federal RAV, weighed at a public weighbridge for a VIN-linked tare mass ticket, and pass a physical safety inspection (at the Hume Motor Vehicle Inspection Station if over 4.5 tonnes). Dwellings over 2,000 kg must feature independent brakes on all wheels and an electronic breakaway system.
The crown lease & “unauthorised use” trap: Storing an empty, registered THOW in a driveway is legal, but living in it full-time is highly restricted. Standard residential blocks are governed by a Crown lease limiting the property to a single private dwelling. Using a THOW as an independent, ongoing household is treated as an unapproved second residence, requiring a formal DA. The ACT does not offer automatic exemptions for family members or dependents to live in a mobile home long-term.
Vacant land & utilities: Living in a moveable structure on vacant land is only permitted if you have an active, fully approved building project for a permanent primary house. Hard-plumbing the home into permanent water or sewerage infrastructure reclassifies it as a fixed dwelling, triggering mandatory plumbing and building permits.

For more details, read our comprehensive post on tiny house laws in ACT.

Don't get left behind!

Be the first to learn about the latest updates in Australia’s tiny home sector.

Don't get left behind!

Be the first to learn about the latest updates in Australia’s tiny home sector.

Don't get left behind!

Be the first to learn about the latest updates in Australia’s tiny home sector.