In Western Australia there is no single set of rules for “a tiny home”. What applies depends on what you are building or buying: a tiny home on wheels that is treated as a caravan, a fixed dwelling without wheels, a granny flat (ancillary dwelling) on a lot that already has a house, or something else such as short-term rental accommodation. WA Government planning guidance sets out how these are treated, and local governments apply the detail, so your local government, not a seller or a general guide, decides what applies to your property. This guide explains the main pathways, the questions to ask before you buy and how finance tends to treat each type. It is general information, not planning, building or legal advice. For the national picture see where can you put a tiny home, and for other states see tiny homes in NSW and tiny homes in Victoria, because rules differ by state and those states’ rules do not apply in WA.
Short answer: what approvals do you need for a tiny home in Western Australia?
It depends on the type. The Western Australian Planning Commission (WAPC) says a tiny house with wheels may be treated as a caravan, with its own limits on where and how long you can stay in it. A tiny house without wheels is a building, which needs a building permit and generally has to meet the National Construction Code, and it may also need development approval under the local planning scheme. Check your property with the relevant local government before you buy or build.
Different things people call a tiny home
| Type | How WA guidance describes it | Pathway it describes |
|---|---|---|
| Tiny home on wheels | May be a caravan under the Caravan Parks and Camping Grounds Act 1995 and its Regulations. The WAPC fact sheet says a vehicle and a building are mutually exclusive, citing a State Administrative Tribunal decision. | Caravan rules, including limits on staying on private land and on permanent occupation outside caravan parks. |
| Tiny home without wheels (fixed) | Treated as a building under the Building Act 2011. The fact sheet lists classifications such as single house, ancillary dwelling and grouped dwelling. | Building permit and a certificate of design compliance from a registered building surveyor, and development approval where the local planning scheme requires it. |
| Ancillary dwelling (granny flat) | The WAPC typologies guide describes an ancillary dwelling as under 70 m² on the same site as an existing dwelling. | May be exempt from development approval if the R-Codes deemed-to-comply provisions are met and the site is not heritage protected; building approval is still needed. |
| Other uses | Grouped dwelling, short-term rental accommodation and workforce accommodation are treated separately in the guidance. | Grouped dwellings generally need development approval; the others have their own planning treatment. |
Do not assume a particular tiny home falls under one of these because of what the seller calls it. Whether it has wheels, whether it is fixed to the ground and how you plan to use it all matter.
Tiny homes on wheels: what WA guidance says about caravan rules
The WAPC fact sheet says that where a tiny house on wheels is treated as a caravan, the Caravan Parks and Camping Grounds Regulations 1997 apply. It describes camping in a caravan on land you own as allowed for up to five nights with the landowner’s consent, or for up to 24 months with local government or ministerial approval, and says permanent occupation outside a caravan park is not allowed. Local governments describe the same framework in their own words. The Shire of Mundaring, for example, says a caravan may be used on private land for up to five nights in any 28-day period with consent, that a temporary accommodation application is possible on lots over 2,000 m² in certain zones for up to two years while a home is being built, that the caravan must stay roadworthy and movable with power, water and effluent disposal, and that permanent occupation and short-term rental are only allowed in approved caravan parks.
These are descriptions by the State Government and by one local government, not a single rule that every local government applies in the same way. Whether you can live in a tiny home on wheels on your own land, and for how long, is a question for the local government before you buy, not an assumption.
Tiny homes without wheels: buildings and planning
The WAPC fact sheet says a tiny house without wheels is a building. It needs a building permit under the Building Act 2011 and has to comply with the National Construction Code, supported by a certificate of design compliance from a registered building surveyor. It says development approval may also be needed under the local planning scheme, and that some development on R-Coded land is exempt under the planning deemed provisions if the deemed-to-comply requirements are met. It also flags bushfire planning (State Planning Policy 3.7) and says to speak to the local government first. The Shire of Dardanup says tiny homes not on wheels are usually treated as single houses or ancillary dwellings, and that local health requirements include a kitchen, bathroom and laundry, minimum ceiling heights of 2.4 metres for habitable rooms and 2.1 metres for non-habitable rooms, and connection to sewer or an approved effluent disposal system and to electricity.
Whether a particular property can host a fixed tiny home depends on its zoning, lot size, any overlays and the local planning scheme. Our granny flat approval and granny flat size guides cover the general questions, and the on-site service options are explained in our septic tank cost and off-grid tiny home guides.
Questions to ask your local government
- What is the zoning of the land, and what dwelling types are allowed on it?
- Would this home be treated as a caravan, a single house or an ancillary dwelling?
- If it has wheels, how long can it be occupied on my land, and is temporary accommodation approval available?
- If it is fixed, do I need development approval as well as a building permit?
- What size limit applies to an ancillary dwelling on my lot?
- What are the requirements for water, sewer or an on-site effluent system, and electricity?
- Are there bushfire, heritage or other overlays on my property?
- Can I rent it out short term or long term?
Rules also differ for owner-builders. See owner-builder approvals.
How finance treats each type
The WAPC fact sheet lists financing arrangements and lending capability as one of the things to consider with a tiny house. Finance depends on how the lender classifies what you are buying, and lenders set their own criteria. In general, a fixed dwelling on land you own is usually assessed differently from a home on wheels that is treated more like a vehicle or caravan, and some lenders will not finance certain types at all. The approval pathway can affect this, because a lender may want approvals in place before funds are released. Whether a particular lender will finance your tiny home depends on the lender, the structure, your income and your credit history, and approval is not guaranteed. Our guides explain the options: tiny home loans, how to finance a tiny home, loans for tiny houses on wheels and can you get a loan for a tiny house. For costs, see tiny house cost in Australia.
Frequently asked questions
Do I need approval for a tiny home in Western Australia?
It depends on the type. A tiny home on wheels may be treated as a caravan with its own rules, while one without wheels is a building that needs a building permit and may need development approval. Check with your local government.
Can I live in a tiny home on wheels in WA?
WA Government guidance says permanent occupation of a caravan outside a caravan park is not allowed, and describes limited stays on private land with consent or approval. Ask your local government what applies to your land.
Is a tiny home a granny flat in WA?
A fixed tiny home on a lot with an existing house may be treated as an ancillary dwelling, which the WAPC guide describes as under 70 m² on the same site. Exemptions and approvals depend on the property and local planning scheme.
Are the rules the same in every local government?
No. State guidance sets the framework, but local governments apply their own planning schemes and requirements, so check with the local government for your land.
Can I get finance for a tiny home in Western Australia?
Often it is possible, but it depends on the type of home, the lender’s criteria and your circumstances. A broker can check which lenders suit your plan.
Who decides what applies to my property?
Your local government and, for building approval, a registered building surveyor. Rules vary by property and change over time.
This article is general information only and does not constitute credit, financial, legal, building or planning advice. Rules and fees vary by local government and property and change over time; confirm current requirements with your local government or a building surveyor. Lending is subject to approval, lending criteria, terms, conditions and fees. Little Home Loans is powered by Alpha390 Finance, which operates under ACL 506065 (Five Tees Pty Ltd).
Sources: WAPC tiny houses fact sheet (5 December 2024), WAPC tiny houses typologies guide, Shire of Mundaring and Shire of Dardanup. Accessed 23 October 2026.
Written and reviewed by the Finance Director at Little Home Loans.
Questions about financing a tiny or alternative home? Call 1300 391 390 or speak to a broker.
