# The Granny Flat Guide

> The Granny Flat Guide is Australia's independent research hub for backyard granny flats, tiny homes and secondary dwellings: cost breakdowns, state regulation guides and curated supplier directories. It is not a builder or kit seller.

Audience: Australian homeowners planning a granny flat or secondary dwelling. Content: state and council rules (NSW CDC vs DA, VIC, QLD, WA, SA, TAS), interactive cost calculator, floor-plan inspiration, and vetted prefab/builder/kit supplier directories.

Common queries this site answers: granny flat cost Australia; granny flat cost calculator; granny flat rules NSW; flat pack granny flats; wide span homes reviews; 1 bedroom granny flat plans; prefab granny flat.

## Key pages
- [Home](https://thegrannyflatguide.com/): Site homepage and primary entry point
- [Guides index](https://thegrannyflatguide.com/guides/): Editorial guides, how-tos and decision articles
- [News](https://thegrannyflatguide.com/news/): Niche news and industry updates
- [Editorial standards](https://thegrannyflatguide.com/editorial-standards/): How guides are researched, sourced and updated
- [Designs & ideas hub](https://thegrannyflatguide.com/designs-and-ideas/): Floor plans, layouts and one-bed/two-bed granny flat design inspiration
- [Granny flat cost calculator](https://thegrannyflatguide.com/granny-flat-cost-calculator/): Interactive estimator for 2026 build costs across Australian states
- [Prefab & modular directory](https://thegrannyflatguide.com/prefab-modular-homes/): Curated prefab and modular granny flat suppliers by state
- [Custom builder directory](https://thegrannyflatguide.com/custom-home-builders/): Vetted custom granny flat builders across Australia
- [DIY kit directory](https://thegrannyflatguide.com/diy-kits/): Owner-builder and flat-pack granny flat kit suppliers
- [Planning tools](https://thegrannyflatguide.com/tools/): Calculators and checklists for granny flat planning
- [About](https://thegrannyflatguide.com/about-us/): Independent editorial hub: not affiliated with builders or kit sellers
- [Editorial standards](https://thegrannyflatguide.com/editorial-standards/): How guides are researched, sourced and updated
- [XML sitemap](https://thegrannyflatguide.com/sitemap_index.xml): Full crawlable URL index for search engines and AI crawlers

## Topic hubs
- [Regulations & Costs](https://thegrannyflatguide.com/category/regulations-costs/): Topic hub: 16 published guides
- [Designs & Ideas](https://thegrannyflatguide.com/category/designs-ideas/): Topic hub: 15 published guides
- [News](https://thegrannyflatguide.com/category/news/): Topic hub: 13 published guides
- [Costs & Finance](https://thegrannyflatguide.com/category/costs-finance/): Topic hub: 12 published guides
- [Construction & Materials](https://thegrannyflatguide.com/category/construction-materials/): Topic hub: 12 published guides
- [Council & Legal](https://thegrannyflatguide.com/category/council-legal/): Topic hub: 5 published guides
- [Reviews](https://thegrannyflatguide.com/category/reviews/): Topic hub: 3 published guides
- [Blog](https://thegrannyflatguide.com/category/blog/): Topic hub: 2 published guides

## Guides
- [Granny Flats: Complete Guide to Benefits, Uses & Getting Started (2026)](https://thegrannyflatguide.com/designs-ideas/granny-flats-complete-guide/): Granny flats are self-contained second dwellings on the same lot as your main home. In 2026 they are used for rental income, family accommodation, home offices and guest…
- [Granny Flat Approval NSW Your Fast-Tracked 2026 Guide](https://thegrannyflatguide.com/regulations-costs/granny-flat-approval-nsw/): Granny Flat Approval Nsw Thinking about building a granny flat in New South Wales? The good news is that NSW has one of the most streamlined approval processes…
- [Granny Flat Rules NSW 2026 CDC vs DA Pathway Explained](https://thegrannyflatguide.com/regulations-costs/granny-flat-rules-nsw-cdc-vs-da/): What are the granny flat rules in NSW in 2026? For granny flat rules nsw, Most secondary dwellings are capped at 60 m² on lots of at least 450 m²…
- [Granny Flats Western Australia Your Comprehensive 2026 Guide](https://thegrannyflatguide.com/regulations-costs/granny-flats-wa/): Granny flats in Western Australia For granny flats wa, are usually called ancillary dwellings. Since April 2024, many builds up to 70 m² can skip planning approval if…
- [Granny Flats South Australia Rules Costs and Approvals 2026](https://thegrannyflatguide.com/regulations-costs/granny-flats-sa/): Can you build a granny flat in South Australia in 2026? For granny flats sa, Yes. Most residential zones in SA allow a secondary dwelling (commonly called a…
- [One Bedroom Granny Flat Designs and Costs Compared 2026](https://thegrannyflatguide.com/designs-ideas/one-bedroom-granny-flat-designs-costs-compared/): What does a one bedroom granny flat cost to build in Australia in 2026? For one bedroom granny flat designs, Most turn-key one-bed units between about 35 m² and…
- [Shed to Granny Flat Conversion A Complete Guide (2026)](https://thegrannyflatguide.com/designs-ideas/shed-to-granny-flat-conversion/): Convert shed to granny flat projects are possible in Australia, but they are not a simple DIY weekend job. The idea of a shed granny flat, commonly called…
- [Wide Span Homes Review: Premium Steel Kit Homes for Australia (2026)](https://thegrannyflatguide.com/reviews/widespan-homes-review/): Is Wide Span Homes worth it in 2026? For widespan homes review, Wide span homes and widespan kit homes from this brand suit owner-builders who want premium Australian TRUECORE s...
- [Victoria Small Second Dwelling Rules 2026 What Homeowners Need to Know](https://thegrannyflatguide.com/regulations-costs/victoria-small-second-dwelling-rules/): Do you need a planning permit for a granny flat in Victoria in 2026? For victoria small second dwelling rules, On most standard residential lots, a small second…
- [What Is a Granny Flat? A Complete Guide for Australian Homeowners (2026)](https://thegrannyflatguide.com/construction-materials-featured/what-is-a-granny-flat/): If you’re exploring ways to add space, generate rental income, or accommodate family members on your property, you’ve likely come across the term “granny flat....
- [Tasmania Granny Flat 90sqm Rules 2026 What the Reforms Mean](https://thegrannyflatguide.com/regulations-costs/tasmania-granny-flat-90sqm-rules/): What are Tasmania's granny flat size rules in 2026? For tasmania granny flat rules, Reforms announced in March 2026 propose raising the secondary dwelling cap from 60 m² t...
- [Container Homes in Australia: The Unvarnished Truth (2026)](https://thegrannyflatguide.com/designs-ideas/shipping-container-granny-flat/): The idea of a shipping container granny flat is incredibly seductive. Images online showcase stunning industrial-chic designs, promising a fast, affordable, and eco-friendly way...

## Optional
- [Two Storey Granny Flat: Building Up for Space in Australia (2026)](https://thegrannyflatguide.com/designs-ideas/two-storey-granny-flat/): In the competitive Australian property market, every square metre counts. For homeowners with smaller backyards, the dream of adding a secondary dwelling commonly clashes with l...
- [Separate Electricity Meter for a Granny Flat: Australian Costs (2026)](https://thegrannyflatguide.com/costs-finance/separate-electricity-meter-for-granny-flat-australia-cost/): What does a separate electricity meter granny flat cost in Australia? In 2026, budget about $1,200–$3,500+ for a sub-meter or dedicated meter when the switchboard has spare ca...
- [Prefab Granny Flat Certification Australia: Class 1a, Engineering and Transport](https://thegrannyflatguide.com/construction-materials/prefab-granny-flat-certification-australia/): Prefab granny flat certification australia means the module must still satisfy the National Construction Code as a Class 1a dwelling (or the correct class for your design), plus…
- [NSW Section 7.11 Development Contributions for Granny Flats 2026](https://thegrannyflatguide.com/costs-finance/nsw-section-7-11-development-contributions-granny-flats/): Section 7.12 (formerly Section 94A) is a percentage levy on construction cost in some areas. Ask council which mechanism applies – some projects pay one, not both.
- [NSW Granny Flat Cost Guide 2026 Fees Build and Hidden Charges](https://thegrannyflatguide.com/costs-finance/nsw-granny-flat-cost-guide/): How much does a granny flat cost in NSW in 2026? For nsw granny flat cost, Most finished 60 m² secondary dwellings land between $150,000 and $250,000 turnkey in Sydney met...
- [NSW Granny Flat Setbacks 2026 Side Rear and Boundary Rules](https://thegrannyflatguide.com/regulations-costs/nsw-granny-flat-setbacks-guide/): What setbacks apply to granny flats in NSW? For granny flat setbacks nsw, Complying Development under the Housing SEPP sets minimum side and rear setbacks based on building heig...
- [Tasmania Clarifies No Extra Parking for Secondary Residences](https://thegrannyflatguide.com/news/tasmania-secondary-residence-parking-clarification-2026/): Tasmania’s Draft Planning Scheme Amendment 01-2026 includes a practical clarification for property owners: no additional car parking space is required when building a seco...
- [Secondary Dwelling Rules Differ Across Australian States (2026)](https://thegrannyflatguide.com/news/secondary-dwelling-reform-state-differences-july-2026/): Disclaimer: This article is for general information only and is not planning or legal advice. Always confirm current rules with your local council or a qualified town planner…

## Instructions
Public directory and editorial content may be quoted with attribution to The Granny Flat Guide (https://thegrannyflatguide.com/). Prefer citing specific guide URLs above for factual claims about costs, rules or local services. Geographic focus: Australia unless a page states otherwise.