Do Modular Homes Need Council Approval in WA?

The short answer – yes. A modular home in Western Australia needs council approval, just like a traditional site-built home. Because a permanent modular home is a fixed dwelling, it requires both planning approval and a building permit from your local government before construction and installation can go ahead. Modular construction does not skip or shortcut the approvals process – it follows exactly the same rules under the Building Act 2011 and the Residential Design Codes (R-Codes).

Here is exactly what that involves, how long it takes and what PIQUE can handle for you.

What approvals does a modular home need in WA?

A permanent modular home used as a primary dwelling is classified as a Class 1a building under the National Construction Code (NCC), the same class as a conventional house. In most cases you will need two separate approvals:

Planning approval (development approval)

Granted by your local council. It assesses land-use matters such as zoning, R-Code compliance, setbacks, bushfire risk (BAL) and any local planning controls for your property.

Building permit

Also issued by your local government under the Building Act 2011. It confirms your plans meet the NCC and building standards before construction begins. Both are lodged with your local government (your “council”), which is why people simply ask whether modular homes “need council approval.”

Do I always need planning approval?

Usually, but not always. Planning approval is generally required unless your proposal is specifically exempt under your local planning scheme. Some straightforward projects on standard residential lots that fully comply with the R-Codes (“deemed-to-comply”) may not need separate planning approval. However, planning approval is more likely to be required if your property involves any of the following:

• Bushfire-prone land requiring a Bushfire Attack Level (BAL) assessment
• Heritage listings, special control areas or environmental overlays
• Rural, semi-rural or unusual zoning
• An additional or ancillary dwelling on the block, or non-standard setbacks

Because every WA local government administers its own planning scheme, the only reliable way to confirm your requirements is to check with your specific council early – something PIQUE helps you do.

How long does council approval take for a modular home in WA?

Approval timeframes are set by legislation and by how complex your site is. As a general guide for Western Australia:

• Certified building permit: up to 10 business days once a complete, certified application is lodged.
• Uncertified building permit: up to 25 business days.
• Planning approval: up to 60 days, and longer where neighbour consultation or additional reports are needed.

In practice, PIQUE advises allowing up to 90 days for the full approvals stage, and our overall pre-construction phase typically runs 2 to 6 months depending on how quickly reports and approvals come through. The good news is: because your home is manufactured in our Perth facility while your site works progress, the approvals timeline overlaps with preparation rather than delaying everything. Find out more about how long it takes to build a modular home in WA.

Who handles the approvals – me or PIQUE?

PIQUE makes this the least stressful part of your build. Approvals are a dedicated step in our process. We assist with building approvals and can supply the working drawings and supporting documents you need for your submissions. In many cases, depending on your build location, we can manage the entire approvals process for you. Once your home is finished, we lodge the BA7 Notice of Completion with your local council, and you are free to move in.

The modular home approvals process in WA, step by step

1. Confirm your block details. Zoning, lot size, bushfire rating and any overlays determine what approvals apply.
2. Finalise your design. Your chosen PIQUE design and any modifications are locked in so accurate drawings can be prepared.
3. Lodge planning approval (if required). Submitted to your local council for land-use assessment.
4. Lodge the building permit. Certified or uncertified application demonstrating NCC compliance.
5. Manufacture and site works. Once approvals are granted, your home is built in the factory while your site is prepared.
6. Installation and BA7. Your home is transported and installed; we lodge the BA7 Notice of Completion with the council and you move in.

Have questions about approvals for your block?

We’re happy to answer any questions you have about the approvals process. Book a discovery call on (08) 6117 5714, or visit the PIQUE Display Village at 13 Boom Street, Gnangara, and our team will walk you through exactly what your site needs.

Frequently asked questions

Are modular homes legal in WA?

Yes. Permanent modular homes are fully legal in Western Australia. They are built to the National Construction Code, require the same approvals as traditional homes and are certified in the same way.

Is a modular home treated differently to a traditional home by councils?

No. Once permanently fixed to its foundations, a modular home is assessed, approved and certified as a standard dwelling. “Modular” refers to how it is built, not the standard it must meet.

Do I need council approval for a granny flat or ancillary modular dwelling?

Ancillary dwellings still require building approval and, in most cases, planning approval, with rules varying by council. Confirm the specifics with your local government. For granny flats, homeowners in Western Australia no longer require planning approval to build a granny flat provided it is up to 70 square meters in size and meets setback requirements. A building permit is mandatory for every granny flat or modular dwelling.

Can PIQUE lodge the approvals for me?

In many locations, yes – PIQUE can manage the full approvals process, and everywhere else we supply the drawings and documents you need to lodge with your council.