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Public government registers · last 12 months

Granny flat cost in Sydney (2026)

Sydney here means postcodes 2000-2249, 2555-2574, 2740-2786.

Middle
A$160,000
Middle half
A$140,000 - A$188,225

2804 applications with a declared cost, lodged between 2025-09-21 and 2026-09-21

71 lodgements were too small to be a whole project of this kind and were left out of the band.

Most recent application in this sample lodged 2026-09-12.

The 12 months before that

Middle A$160,000, over 65 applications.

Councils inside Sydney

CouncilApplicationsMiddle
Blacktown City Council510A$158,845
Fairfield City Council304A$160,250
Penrith City Council299A$160,000
Canterbury-Bankstown Council290A$153,500
Campbelltown City Council280A$153,755
Liverpool City Council252A$150,000
Cumberland Council204A$150,000
City of Parramatta Council96A$160,000
Northern Beaches Council75A$199,000
The Council of the Shire of Hornsby64A$190,930
The Hills Shire Council61A$160,000
Georges River Council60A$178,525
Camden Council57A$150,000
Wollondilly Shire Council51A$224,910
Bayside Council35A$169,340
Blue Mountains City Council35A$163,900
Ryde City Council33A$170,000
Hawkesbury City Council31A$150,000
Sutherland Shire Council27A$151,403
Inner West Council20A$210,035
Willoughby City Council18A$183,325
Ku-ring-gai Council17A$217,900
Randwick City Council15A$186,100
City of Canada Bay Council14A$200,000
Burwood Council10A$191,250

Finished projects in Sydney

  • Penrith Modern Vinyl Cladding Three-Bedroom CottageCost not published
  • Emu Plains Two-Bedroom Brick Facade Backyard Cabin with TerraceCost not published
  • North Parramatta Home Extension and Granny Flat ProjectCost not published
  • North Curl Curl Studio Apartment RenovationCost not published
  • Lalor Park Backyard Apartment Custom Design ProjectCost not published
  • Bella Vista Granny Flat ProjectCost not published

Granny flat on your block: type your address to see whether it is allowed · Check this block

A declared cost of works is the applicant’s own estimate, filed so the council can work out a lodgement fee. It is not a contract price. Under the official definition it covers design and construction and excludes GST and the land.

Data from the states public planning registers and licence rolls · refreshed 2026-09-14 · Data and licences

Other project types in Sydney

  • Dual occupancy
  • Knockdown rebuild
  • Townhouses
  • New house
  • Alterations and additions

Granny flat in other regions

  • Central Coast
  • Newcastle and Hunter
  • Wollongong and Illawarra
  • Regional NSW
Every region and project type

SeeBuilds

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Homeowners+
Projects →Block check →Quote check →Nearby →Find people →Build guides →
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Data+
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Language

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Legal

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Data is used under its publishers' open licences; see Data and licences.

© 2026 SeeBuilds