Granny Flat Prices Perth 2025 | Fixed-Price Packages from $69,900

Choose Your Package

Simple, Transparent Pricing

All packages include site assessment, council approvals, construction, connections, and a 7-year structural warranty.

Studio

$69,900+

Compact studio, 28–35m²

✓ Studio layout

✓ Full bathroom

✓ Kitchenette

✓ Split-system A/C

✓ Council approvals

✓ Site works incl.

✗ Separate laundry

✗ Alfresco

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1 Bedroom

$99,900+

1 bed, 1 bath, 45–55m²

✓ 1 bedroom with BIR

✓ Full bathroom

✓ Open-plan kitchen

✓ Separate laundry

✓ Split-system A/C

✓ Council approvals

✓ Alfresco area

✗ Ensuite

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⭐ Most Popular

2 Bedroom

$139,900+

2 bed, 2 bath, 60–70m²

✓ 2 bedrooms (WIR to master)

✓ Ensuite + main bath

✓ Gourmet kitchen

✓ Open-plan living

✓ Separate laundry

✓ Ducted or split A/C

✓ Alfresco + private entry

✓ Stone benchtops

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Custom

POA

Bespoke design, any size

✓ Fully custom brief

✓ Any architectural style

✓ Dual occupancy option

✓ Premium fit-out options

✓ Luxury finishes available

✓ Full project management

✓ Interior design service

✓ 3D render included

Discuss Your Project

* All prices are indicative starting points. Your exact price depends on block size, site conditions, and selected finishes. Book a free site assessment for an accurate fixed-price quote.

Full Breakdown

What's Included in Every Package

No nasty surprises at invoice time. Here's every cost component included in your fixed price.

📋 Planning & Approvals

✓ Free site assessment & R-Code check
✓ Working drawings and specifications
✓ Development Application (DA) lodgement
✓ Building Permit application & fees
✓ Structural engineer certification
✓ Energy efficiency assessment (NatHERS)

🏗️ Site & Construction

✓ Site preparation & levelling
✓ Concrete slab (engineer-designed)
✓ Full framing, roofing & cladding
✓ All plumbing, electrical & gas
✓ Insulation (wall, ceiling & underfloor)
✓ Utility connections (water, sewer, power)

🪟 Fixtures & Finishes

✓ Stone benchtops throughout
✓ Hybrid timber-look flooring
✓ Soft-close cabinetry
✓ Quality tapware & fittings
✓ LED downlights throughout
✓ Split-system air conditioning

🔑 Handover & Warranty

✓ Occupancy certificate
✓ As-built drawings provided
✓ All appliance manuals & warranties
✓ 12-month defect liability period
✓ 7-year structural warranty
✓ Home Indemnity Insurance

Finance Made Easy

Flexible Payment Milestones

We follow the standard HIA progress payment schedule — you only pay as work is completed.

1

Deposit

5%

On signing

2

Base Stage

20%

Slab complete

3

Frame Stage

20%

Frame complete

4

Lock-Up

25%

Roof & walls

5

Completion

30%

At handover

Pricing FAQs

Our fixed-price contracts cover everything listed in your proposal — design, approvals, site works, construction, connections, and handover. The only additional costs that could arise are: changes you request after signing, unusual soil conditions discovered during excavation (rare, and we assess this upfront), or upgrades to premium finishes. We're upfront about all of this before you sign.

Yes — most clients use equity in their existing property to fund their granny flat. This typically means refinancing or accessing a construction loan. We can refer you to specialist mortgage brokers who understand granny flat finance. Some lenders offer specific construction loan products for secondary dwellings.

We include everything in one fixed price — council approvals, site works, premium inclusions, and connections. Many competitors quote a "build only" price that doesn't include the $10,000–$30,000 in costs for approvals, site preparation, and connections. Our all-inclusive price is often cheaper overall, and you'll never be surprised by extras.

Fixed-Price Granny Flat Packages

Simple, Transparent Pricing

What's Included in Every Package

📋 Planning & Approvals

🏗️ Site & Construction

🪟 Fixtures & Finishes

🔑 Handover & Warranty

Flexible Payment Milestones

Pricing FAQs

Get Your Exact Fixed-Price Quote