--- title: Granny Flat Cost Calculator — Instant Price Estimate | PanelHome description: Get an instant granny flat cost estimate. Seven Panelok™ designs from 21m² to 84m². Supply only or full turnkey build — see a price in seconds, no form required. --- [![PanelHome](https://www.panelhome.com/hubfs/panelhome/endorsement.png)](https://www.panelhome.com/?hsLang=en) [Granny Flats](https://www.panelhome.com/granny-flats?hsLang=en) [Panel Homes](https://www.panelhome.com/?hsLang=en) [Our Process](https://www.panelhome.com/how-it-works?hsLang=en) [Builder Network](https://www.panelhome.com/builder-network?hsLang=en) [Get a free quote](https://www.panelhome.com/granny-flats#enquiry) Granny flat cost calculator # How much does a granny flat cost *in Australia?* Pick a design, choose supply-only or full turnkey build — see an indicative price instantly. No form. No waiting. [See prices ↓](https://www.panelhome.com/granny-flat-cost#calculator) [View all designs →](https://www.panelhome.com/granny-flats?hsLang=en) 7 Ready-to-build designs 21–84m² Size range Studio – 3 bed Configurations 1 day Quote turnaround Step 1 ## Choose your design ![Kedron studio granny flat](https://www.panelhome.com/hubfs/panelhome/images/designs/kedron.jpg) Studio · 21.3m² Kedron ![Coolum studio granny flat](https://www.panelhome.com/hubfs/panelhome/images/designs/coolum.jpg) Studio · 34.5m² Coolum ![Newstead 1 bedroom granny flat](https://www.panelhome.com/hubfs/panelhome/images/designs/newstead.jpg) 1 Bed · 39m² Newstead ![Hamilton 2 bedroom granny flat](https://www.panelhome.com/hubfs/panelhome/images/designs/hamilton.jpg) 2 Bed · 44.82m² Hamilton ![Noosa 1 bedroom granny flat](https://www.panelhome.com/hubfs/panelhome/images/designs/noosa.jpg) 1 Bed · 53.1m² Noosa ![Beechmont 2 bedroom 2 bathroom granny flat](https://www.panelhome.com/hubfs/panelhome/images/designs/beechmont.jpg) 2 Bed 2 Bath · 78m² Beechmont ![Tallai 3 bedroom 2 bathroom granny flat](https://www.panelhome.com/hubfs/panelhome/images/designs/tallai.jpg) 3 Bed 2 Bath · 83.7m² Tallai Don't see what you're after? [Custom design — tell us what you have in mind →](https://www.panelhome.com/granny-flats#enquiry) Step 2 ## What do you need? Supply only Panels, windows, roof & floor system delivered to your site. You arrange installation. Supply + Install Full turnkey build. Licensed builder manages delivery, erection, and fit-out. Indicative estimate. Major east coast city delivery included. Regional and interstate delivery surcharges may apply — we'll confirm in your quote. Get the full cost breakdown → One more step ### Where should we send the breakdown? Takes 20 seconds — we'll tailor the follow-up to your state and timeline. Your state VIC NSW QLD SA WA TAS NT ACT Your timeframe Ready to go — within 3 months Planning — 3 to 12 months Early research — just getting numbers Show my cost breakdown → Your cost breakdown All figures indicative. Regional and interstate delivery surcharges may apply. Supply + Install pricing assumes standard site conditions: class M soil, existing concrete slab, existing services connected to boundary. Site variations will be assessed and confirmed in your fixed-price quote. Expect a call shortly. One of the team will call you within one business day to talk through your project and confirm a fixed price — agreed before any work starts. What's included ## What the price covers Supply (all options) - External wall panels — insulated SIP system - Windows and external doors - Roof panel system - Floor system - Structural engineering certification - Standard delivery — major east coast cities Supply + Install adds - Licensed builder — your state - Panel erection and weatherproofing - Internal fit-out to lock-up stage - Building permit coordination - Site management and inspections Standard site: class M soil, ex-slab, existing services connected. Site variations confirmed in quote. ★★★★★ "We had three builders quote. PanelHome was the only one that gave us a real number upfront — no follow-up forms, no waiting a week. Build was complete in 11 days from slab." Sarah & Tom W. Granny flat turnkey · Melbourne, VIC [![PanelHome](https://www.panelhome.com/hs-fs/hubfs/panelhome/endorsement.png?height=32&name=endorsement.png)](https://www.panelhome.com/?hsLang=en) A Panelok™ Authorised Distributor. SIP panel homes for owner builders, investors, and custom builds. [Granny Flats](https://www.panelhome.com/granny-flats?hsLang=en) [Panel Homes](https://www.panelhome.com/?hsLang=en) [Owner Builders](https://www.panelhome.com/how-it-works?hsLang=en) [Our Process](https://www.panelhome.com/how-it-works?hsLang=en) [Builder Network](https://www.panelhome.com/builder-network?hsLang=en) [VIC](https://www.panelhome.com/granny-flats/victoria?hsLang=en) [NSW](https://www.panelhome.com/granny-flats/nsw?hsLang=en) [QLD](https://www.panelhome.com/granny-flats/queensland?hsLang=en) [SA](https://www.panelhome.com/granny-flats/south-australia?hsLang=en) © 2026 PanelHome Industries Pty Ltd. All rights reserved.  ·  [Panelok™ Building Systems](https://www.panelok.com.au) ★★★★★ “We had three builders quote. PanelHome was the only one that gave us a real number upfront — no follow-up forms, no waiting a week. Build was complete in 11 days from slab.” Sarah & Tom W. Granny flat turnkey · Melbourne, VIC