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Granny flat builder Sydney
Granny Flats · Sydney

Granny flats — self-contained homes in your own backyard

Majestic Legacy designs and builds 1 & 2 bedroom and custom granny flats across Sydney — a smart way to add value, house family or create rental income on your own block.

Smart Investment

Add value, family space and rental income

A granny flat is one of the smartest additions to a Sydney home. It can house aging parents, give teenagers their own space, generate rental income, or become a home office — all on your existing block.

  • 1 Bedroom Granny Flats — compact & cost-effective
  • 2 Bedroom Granny Flats — extra space
  • Attached Granny Flats — connected to your home
  • Detached Granny Flats — separate self-contained homes
  • Custom Granny Flats — built to your design
  • Granny Flat Design & Build — one team, full process
Design My Granny Flat
Custom granny flat Sydney
What We Build

Granny flat options for every need

1 Bedroom Granny Flats

A compact, self-contained studio-style home — great value and quick to build.

2 Bedroom Granny Flats

Two bedrooms, bathroom and kitchen — perfect for family or tenants.

Attached Granny Flats

A granny flat connected to your existing home — seamless and space-efficient.

Detached Granny Flats

A fully separate secondary dwelling in your backyard with its own entrance.

Custom Granny Flats

Design a granny flat entirely around your needs, style and budget.

Design & Build

One team managing design, approvals and construction from start to finish.

Considerations

What to know before you build

Do I need council approval for a granny flat?

Most granny flats can be built as complying development (CDC) under the NSW Secondary Dwellings code, subject to criteria like size, height and setbacks. We assess your block and handle the approvals for you.

How much does a granny flat cost in Sydney?

Costs vary widely based on size, site conditions and finishes. We provide a fixed, transparent quote so you know exactly what you're paying for.

Can a granny flat generate rental income?

Yes — granny flats are often let out for rental income, making them a strong investment on your own block.

How long does a granny flat take to build?

A typical granny flat can be constructed in a matter of months. We give you a realistic timeline up front.

Build It

Ready to add a granny flat to your property?

Get honest advice and a clear, fixed quote.

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