Changes to government legislation in Western Australia mean that granny flats are no longer just for housing your elderly parents, but can be rented out for additional income or provide additional investment on existing land. Granny flat, in-law apartment or secondary dwelling – whatever you choose to call it, it’s a clever property investment strategy.

Granny flats are popping up in backyards all over WA as homeowners and investors begin to take note of their money making potential.

“Did you know the expected rental return on a self-contained granny flat in Perth is around $250 per week?” (Source:

Whether you decide to add a detached flat to your principal place of residence to earn a little extra cash, or build a secondary dwelling on your investment property to up the rental earnings, much can be said for the flexibility a granny flat provides.
It’s a fantastic way to generate additional cash flow through rental income as well as increase the property’s value if and when you decide to sell.

For a minimal financial outlay a granny flat provides you with a great investment strategy as well as flexible lifestyle arrangements.

Talk to us today about generating an income from your backyard.
A granny flat offers a cost effective housing alternative for:
  • Elderly Family Members
  • University Students
  • FIFO Workers
  • Home Office
  • Nannies / Au Pairs
  • Newlyweds
  • Teenagers Retreat
  • Guest Accommodation / airbnb
  • Games Room
  • Renting

Talk to us today about how you will use your granny flat.

Our Products

At The Granny Flats Warehouse we build superior granny flats and room extensions at affordable prices.

Designed to offer a high standard of comfortable accommodation, they blend well aesthetically with most WA homes.

All of our granny flats and room extensions are fully constructed on site, adhere to the Building Code of Australia and come with a structural and service warranty.

Granny flats and room extensions can be built on a concrete slab or raised timber flooring to engineer's specifications.

All walls and ceilings are insulated.

The internal lining to walls and ceilings is Gyprock.

A range of external cladding options is available.


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