Custom Granny Flats
Designed for Quality, Not Compromise
Bespoke, architect-designed granny flats built on your property across Sydney & the South Coast — fully managed from design to handover.
Licensed & Insured
Custom Designs
Fixed Price Contracts
All Approvals Inc.
Thinking About a Granny Flat — But Worried About the Process?
Most Sydney homeowners delay building a granny flat because they’re concerned about:
• Dealing with council approvals and compliance
• Poor build quality from prefab or volume builders
• Hidden costs and budget blowouts
• Managing multiple trades and timelines
• Designs that don’t suit their property or long-term goals
You’re not alone — and you don’t have to navigate this alone.
Stronger, Straighter, Built to Last — Precision Steel Framing
At Buildview Homes, every granny flat is constructed using precision-engineered Australian steel framing, delivering superior strength, durability, and structural stability compared to traditional timber framing. Steel does not warp, twist, shrink, or attract termites, which means your granny flat maintains its structural integrity for decades.
Our framing systems are designed and manufactured to strict Australian building standards and assembled on-site as part of our full construction process — just like a standard home. The result is a stronger structure, cleaner finishes, and long-term peace of mind for homeowners and investors alike.
Why Steel Framing is the Better Choice
✔ Termite Resistant
Steel is immune to termites, helping protect your investment long-term.
✔ Precision Engineered
Manufactured for straight walls, and better structural integrity.
✔ Fire Resistant Material
Steel is non-combustible, offering improved safety.
✔ No Warping or Shrinking
Unlike timber, steel will not twist, bow, or shrink over time.
✔ Built for Australian Conditions
Designed to perform in harsh Australian climates.
Studio Granny Flats
Our studio granny flats are a smart, space-efficient solution ideal for singles, home offices, or compact living. Thoughtfully designed layouts maximise functionality and comfort while maintaining a modern, high-quality finish tailored to your property.
1 Bed Granny Flats
A one-bedroom granny flat offers the perfect balance of privacy, comfort, and versatility. Designed for independent living, these smartly designed layouts provide generous living space, modern amenities, and a practical design suited to a wide range of uses.
2 Bed Granny Flats
Our two-bedroom granny flats are ideal for families, long-term tenants, or shared living arrangements. With well-zoned spaces and flexible layouts, they deliver comfort, functionality, and long-term value without ever compromising on design quality and luxury.
Air BnB | Investors
Designed with returns in mind, our Airbnb and investment granny flats focus on layout efficiency, durability, and broad tenant appeal. Smart design choices help maximise rental income while delivering a low-maintenance, high-quality asset that will add value over time.
NDIS Builder
Our NDIS-compliant granny flats are designed to support accessibility, independence, and long-term functionality. Built to meet required standards and individual participant needs, each design prioritises safety, comfort, and practical living solutions.
Why Choose a Granny Flat?
Smart property investment with immediate and long-term benefits
$150-$250k
Potential Property Value Uplift
Well-designed granny flats increase overall property value, depending on location, design quality, & rental demand.
$450-$850/wk
Rental Income Potential
Granny flats in Sydney and surrounding regions commonly achieve strong weekly rental returns, particularly in high-demand suburbs.
16-20 weeks
Construction Timeframe
From approval to completion, most builds are delivered faster than traditional extensions or secondary dwellings making them ideal in 2026.
Fully Approved
Fully Compliant Builds
All designs are completed to NSW planning controls, NCC requirements, and local council or CDC guidelines, ensuring peace-of-mind.
What Our Customers Say
⭐⭐⭐⭐⭐4.9/5 from 200+ reviews
⭐⭐⭐⭐⭐
"The team delivered exactly what they promised. Our 60m² granny flat was completed in 14 weeks and now generates $520/week rental income. Couldn't be happier!"
Sarah N
Bankstown, NSW
⭐⭐⭐⭐⭐
"Professional service from start to finish. The council approval process was seamless and the build quality exceeded our expectations. Great investment decision."
David P
Sydney, NSW
⭐⭐⭐⭐⭐
"Having mum close by in her own space has been perfect. The accessibility features were thoughtfully designed and she loves her independence."
Maria Santos
Liverpool, NSW
Granny Flat Guide
Everything you need to know about building a granny flat in Australia
What planning permission do I need for a granny flat?
In most Australian states, granny flats under 60m² can be built under complying development, meaning faster approval. Requirements vary by state:
NSW: Up to 60m² under SEPP (Exempt and Complying Development Codes) 2008
VIC: Secondary dwellings under planning permits with specific conditions
QLD: Granny flats under development approval with council requirements
WA: Ancillary accommodation under planning approval
We handle all council approvals and ensure your design meets local requirements.
How much does a granny flat cost to build?
Granny flat costs vary by size, finishes, and location:
Basic (40m²)
$120k - $140k
Standard finishes, 1 bed, 1 bath
Premium (60m²)
$160k - $180k
Quality finishes, 2 bed, 1 bath
Luxury (80m²)
$200k - $240k
High-end finishes, 2 bed, 2 bath
What rental income can I expect in Sydney?
Rental returns vary by location and property quality.
Average weekly rents:
Inner City
Studio: $550/week
1 Bed: $750/week
2 Bed: $850/week
Outer Metro
Studio: $450/week
1 Bed: $650/week
2 Bed: $750/week
Returns typically range from 5-8% annually based on construction cost.
How long does construction take?
Our typical timeline from contract to completion:
- Design & Approval (2-4 weeks) Site survey, design finalization, council submission
- Pre-construction (1-2 weeks) Permits, material ordering, site preparation
- Construction (16-20 weeks) Foundation, framing, services, completion
Ready to Start Your Granny Flat Project?
Get your free consultation and site assessment today
Buildview Homes is a division of Buildview Corp established in 2004. We are fully licensed and insured.
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