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Fixed price, $4,990

Granny Flat Plans

Council ready drawings for granny flats and secondary dwellings on standard residential lots across Brisbane and South East Queensland, a complete, self contained second home on your block.

About this service

Everything you need to get a secondary dwelling approved.

A granny flat, known in the planning system as a secondary dwelling, is a self contained second home on the same lot as your main house. Plan Draft's fixed price service covers the complete set of drawings your council, certifier and builder need, and we confirm the size, setback and site coverage rules for your block at suitability review before any work begins.

  • Typical turnaround: 15–20 business days
  • Digital PDF and DWG set, ready for certifier lodgement
  • Suitability confirmed before you commit

Fixed price

$4,990

One price for a standard secondary dwelling on a standard residential lot.

Typical turnaround

15–20 business days

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Scope of service

What's included, and what's not.

The fixed price covers the full set of drawings required for a standard secondary dwelling approval application. The following clarifies what sits inside and outside the fixed price scope.

Included in the fixed price

  • Site plan showing existing dwelling and proposed secondary dwelling
  • Proposed floor plan with dimensions
  • All required elevations
  • Roof plan
  • Cross section through the dwelling
  • Lighting and electrical layout
  • Construction notes
  • Engineer and certifier coordination
  • Two rounds of drawing revisions
  • Final digital issue (PDF) and DWG files

Not included in the fixed price

  • Council application, development application and other council fees
  • Private certification fees
  • Site, boundary and location surveys
  • Soil testing
  • Structural engineering
  • Hydraulics, stormwater or drainage design
  • Any other consultants' fees
  • Revisions beyond the two included rounds

Third party fees are quoted by and paid directly to that provider. We'll tell you which are likely to apply at suitability review.

Granny flat FAQs

Common questions about granny flat plans.

Do I need council approval for a granny flat in Queensland?
A secondary dwelling (granny flat) always needs a building approval. In many cases it can be approved as accepted development without a full development application, provided it meets your council's planning scheme for size, setbacks and site coverage. Where the proposal exceeds those limits, a development application is required. We confirm the pathway for your block at suitability review.
Can I rent out a granny flat in Queensland?
Yes. Since September 2022 a secondary dwelling in Queensland can be rented to anyone, it no longer has to be occupied by a member of the main household. Individual councils may still apply their own design and approval requirements, which we check for your site.
How big can a granny flat be?
Size limits vary by council. In Brisbane, a secondary dwelling is generally limited to 80m² of habitable floor area as accepted development, and must sit within 20 metres of the main dwelling with overall site coverage no more than 50%. Other SEQ councils set their own caps, some tie the limit to lot size. We confirm the limits that apply to your block before starting.
What's included in the $4,990 fixed price?
The fixed price covers the full drawing set, including a site plan showing the existing and proposed dwellings, a proposed floor plan, all elevations, a roof plan, a cross section, a lighting and electrical layout, and construction notes, plus engineer and certifier coordination, two rounds of revisions, and the final PDF and DWG files. The price applies to a standard secondary dwelling on a standard residential lot.
What's not included?
The fixed price does not include council application, development application or other council fees, private certification fees, site, boundary or location surveys, soil testing, structural engineering, hydraulics, stormwater or drainage design, any other consultants' fees, or revisions beyond the two included rounds. Third party fees are quoted by and paid directly to that provider, and we'll tell you which are likely to apply at suitability review.
How long does it take?
Typical turnaround is 15–20 business days from receipt of all required site information. A secondary dwelling is a full habitable building, so it involves more documentation than a carport or deck. After drawings are finalised, your certifier assesses the package and issues the building approval.
Ready to proceed?

Start your granny flat enquiry.

Send us your project details and we'll confirm suitability within one business day. Fixed price, $4,990, no surprises.

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