Granny flat guides

Everything you need to know about building a granny flat in Australia. Costs, regulations, approval pathways, and build types — all based on real data.

State regulations

Centrelink Granny Flat Rules: How a Granny Flat Interest Affects Your Pension

Understand Centrelink granny flat interest rules, the reasonableness test, and how paying for accommodation affects your Age Pension assets test.

10 min · Updated 29 Apr 2026

Granny Flat Rules NSW: CDC vs DA, Size Limits & Rental Guide (2026)

Complete guide to NSW granny flat rules. CDC vs DA approval, 60sqm limits, setbacks, lot size, rental rules and 2025-2026 SEPP Housing changes explained.

12 min · Updated 29 Apr 2026

Granny Flat Rules QLD: Brisbane, Gold Coast & Council-by-Council Guide (2026)

Queensland granny flat rules by council. Brisbane 80sqm, Gold Coast 80sqm, Logan 70sqm, Moreton Bay tiered limits. Approval pathways and rental rules.

11 min · Updated 29 Apr 2026

Granny Flat Rules South Australia: Complete 2026 Guide

SA granny flat rules explained: 70sqm max, self-contained now allowed, rental to anyone permitted. Setbacks, approval pathways and Adelaide council rules.

10 min · Updated 29 Apr 2026

Granny Flat Rules Tasmania: 2026 Guide (60sqm to 90sqm Reform)

Tasmania granny flat rules: current 60sqm limit, proposed 90sqm increase, planning permits, rental rules and secondary dwelling requirements explained.

9 min · Updated 29 Apr 2026

Granny Flat Rules Victoria: Small Second Dwelling Laws & Permits (2026)

Victoria granny flat rules explained. New small second dwelling laws, DPU phase-out, 60sqm limits, permit costs, rental rules and VicSmart pathway.

11 min · Updated 29 Apr 2026

Granny Flat Rules WA: Ancillary Dwelling Size, Approval & R-Codes Guide (2026)

WA granny flat rules explained. 70sqm ancillary dwelling limits, R-Code reforms removing lot size minimums, approval exemptions and rental rules.

10 min · Updated 29 Apr 2026

NZ's Consent-Free Granny Flats: A Blueprint for Australian Reform?

New Zealand's recent policy changes allow consent-exempt granny flats, built off-site with new materials. Could these progressive NZ granny flat rules inspire similar regulatory reform in Australia to ease housing shortages?

6 min · Updated 29 Apr 2026

Tasmania Proposes 50% Larger Granny Flats to Tackle Housing Crisis

Tasmania is set to increase its maximum granny flat size from 60sqm to 90sqm, a 50% jump aimed at tackling the housing crisis. This significant change will enable more 2-bedroom secondary dwellings across the state, offering improved housing options and affordability.

7 min · Updated 29 Apr 2026

Victoria's Granny Flat Revolution: Build, Rent, Invest (2026 Rules)

Victoria's new granny flat rules, effective March 2026, simplify building small second homes up to 60sqm without a planning permit. These reforms unlock significant rental income and investment opportunities for homeowners.

9 min · Updated 29 Apr 2026

Victoria's Granny Flat Rules: DPU Deadline Looms (Mar 2027)

Victoria's Dependent Person's Unit (DPU) rules expire on **March 28, 2027**. Understand the shift to 'Small Second Home' regulations, including new **60sqm** limits and permit requirements, to plan your project effectively.

7 min · Updated 29 Apr 2026

Costs & financing

How to Finance a Granny Flat: Loans, Equity & Funding Options

Compare granny flat financing options in Australia: home equity, construction loans, personal loans and more. Learn what banks need and costs.

9 min · Updated 29 Apr 2026

Granny Flat Cost Brisbane: 2026 Price Guide for QLD Builds

What does a granny flat cost in Brisbane? Compare kit, prefab and site-built prices, council fees by area, and QLD-specific cost factors for 2026.

8 min · Updated 29 Apr 2026

Granny Flat Cost in Sydney: 2026 Price Guide With Full Breakdown

How much does a granny flat cost in Sydney in 2026? From $130k to $300k+ depending on size and spec. Full cost breakdown by type, size, and area.

9 min · Updated 29 Apr 2026

Granny Flat Rental Income: ROI, Yields, and Tax Guide (2026)

How much rental income can a granny flat generate? Average rents by city, ROI calculations, Airbnb vs long-term, tax deductions, and state rental rules.

10 min · Updated 29 Apr 2026

Granny Flat Tax Guide Australia: Rental Income, Deductions and CGT

Australian granny flat tax rules: rental income, deductions, depreciation, CGT when selling, land tax, Centrelink rules and record keeping. ATO guidance.

12 min · Updated 29 Apr 2026

NSW Granny Flat Boom: Fixed Costs, Fast Builds & $700/Week Returns

Discover why granny flats are booming in NSW with fixed-price packages, rapid 28-week builds, and potential rental yields up to $700/week. Learn how CDC approvals are driving this trend and boosting property values.

8 min · Updated 29 Apr 2026

Prefab vs. Traditional: Decoding Granny Flat Cost Savings in 2026

Explore how prefab granny flats offer clearer, often lower costs compared to traditional builds in Australia. Compare financial advantages and cost transparency for modern build types across all states.

6 min · Updated 29 Apr 2026

Planning & approvals

Granny Flat Council Approval: CDC vs DA Explained (2026 Guide)

Compare CDC and DA approval pathways for granny flats in Australia. Timelines, costs, eligibility, and state-by-state rules for 2026.

9 min · Updated 29 Apr 2026

Can I Build a Granny Flat? Site Assessment Checklist (2026)

Step-by-step checklist to assess if your property suits a granny flat. Lot size, zoning, slope, access, services, overlays and setbacks by state.

11 min · Updated 29 Apr 2026

How to Choose a Granny Flat Builder: Questions, Red Flags & Checklist

Learn how to choose the right granny flat builder in Australia. Questions to ask, red flags to avoid, how to compare quotes and understand your contract.

9 min · Updated 29 Apr 2026

Design & layouts

Granny Flat Designs & Floor Plans: Studio to 3-Bedroom Layouts

Explore granny flat designs from studio to 3-bedroom layouts. Floor plan ideas for 25-80 sqm, tips for natural light, open-plan living and accessibility.

10 min · Updated 29 Apr 2026

Build types

Expandable Container Granny Flats: Australia's Latest Trend

Discover the rise of expandable container granny flats in Australia, offering a fast, cost-effective solution for rental income or family accommodation. Learn about costs, benefits, and regulations.

6 min · Updated 29 Apr 2026

Off-Site Granny Flats Get a Boost: Faster Builds Coming Mid-2026

New legislation, expected mid-2026, will allow off-site granny flat construction before approvals. This aims to slash build times and offer more choice for prefabricated and modular options across Australia.

6 min · Updated 29 Apr 2026