FREE Property Assessment + Custom Floor Plan + Fixed Price Quote
See exactly what granny flat you can build on your property, what it will cost, and how much rental income it could generate. Obligation free.
1000+ Granny Flats Built
Fixed Price Packages
12+ Years Specialist Experience
Approval Guarantee
No obligation. No sales pressure. 100% free.
We do it all from start to finish
At The Granny Flat Experts we will guarantee a personalised service and guide you through every step of the process to ensure your granny flat journey is a memorable one.
Approval Guarantee
We guarantee that your project will be 100% approval by your local Council or through a Private Certifier.
Rental Guarantee
We will reimburse you the equivalent rent amount for every week we go over the
agreed construction timeframe.
7 yr Structural Warranty
Instead of the standard six year Structural Warranty, we will give you and extra year, totalling seven years for peace of mind.
Longer Maintenance Period
We offer an extra 30 days on top of the standard 90 day maintenance period, totalling 120 days.
100% FREE - NO OBLIGATION
What You Receive In Your
FREE Property Assessment
Property Assessment
We confirm whether your property qualifies for a granny flat and identify the best building location on your block.
Custom Floor Plan
Our designers create a proposed floor plan tailored to your site and goals — no generic templates.
Fixed Price Quote
You'll receive a detailed tender proposal outlining the full cost of design, approval and construction.
SMART PROPERTY INVESTMENT
Why More Property Owners
Are Building Granny Flats
~$500/week
Additional Rental Income
Earn approximately $500 per week in rental income from your granny flat.
10–30%
Increase Property Value
Add significant equity to your home by increasing its overall market value.
Live-in Family
Family Accommodation
Perfect for parents, grown children, or extended family who need their own space.
Multi-Use
Flexible Living Space
Use as a home office, guest house, Airbnb, or permanent rental — you decide.
TRANSPARENT PRICING
Granny Flat Packages
STUDIO
From $132,900 inc GST
BEST FOR:
Small blocks
Guest accommodation
Home offices
1 BEDROOM
From $135,900 inc GST
BEST FOR:
Couples
Downsizers
Rental income
2 BEDROOM
From $147,900 inc GST
BEST FOR:
Maximum rental returns
Families
Multi-generational living
We have 100's of granny flat and studio designs to choose from. Start your home ownership journey today!
GET INSPIRED
Recent Project Gallery
Browse through a range of client projects we've completed locally.
Over 1,000 Granny Flats built in the past 15 years!
LIMITED TIME OFFER
Upgrade Your Granny Flat With
$10,000 Worth of Premium Inclusions
*Based on a 60m² Granny Flat with one bathroom and standard kitchen.
For Comfortable Living
2 sq.m covered entry porch
LED Downlights to kitchen, living & bedrooms
Vertical Blinds to windows and sliding door
Separate laundry cupboard
Digital TV Antenna
Wall-mounted fold down clothesline and letterbox
For Your Kitchen
Polyurethane kitchen cabinets
20mm Caesarstone kitchen benchtop
Soft-closing cupboard doors and drawers
400mm wide single door pantry
Externally ducted rangehood
Westinghouse Dishwasher
For Your Bathroom
Floor to ceiling wall tiles
20mm Caesarstone vanity top with counter top basin
Back-to-wall dual flush toilet suite
600 x 750 mirrored shaving cabinet
Semi-frameless shower screen
GOT A QUESTION FOR US?
Frequently Asked Questions
Can my property have a granny flat?
Most properties in NSW can qualify through a Complying Development Certificate (CDC) approval process. The key requirements are typically a minimum land size of 450m² and a 12m width. Our free site assessment will confirm your property's eligibility at no cost.
How long does it take to build a granny flat?
The process typically involves two phases: Design & Approval takes 6–8 weeks, and Construction takes 18–20 weeks. We'll give you a clear project timeline before you commit to anything.
Can I rent out my granny flat?
Yes! Many of our clients build granny flats specifically for rental income. Sydney's strong rental market means a well-built granny flat can generate approximately $500 per week in rental income.
What does 'fixed price' mean?
Our fixed price contracts mean you pay the price quoted — no unexpected variations or hidden costs. This gives you complete budget certainty from day one.
What is the 'approval guarantee'?
If we conduct a site assessment and determine that approval cannot be achieved on your property, you will receive a full refund. We stand behind our assessment process.
Do I need council approval?
Most granny flats are approved under the Complying Development pathway, which is faster than a Development Application (DA). Our team handles all approvals on your behalf.
Sydney's specialist granny flat builder. Smart designs, affordable prices.
Contact Us
THE GRANNY FLAT EXPERTS
Unit 10 / 7 Hoyle Avenue, Castle Hill NSW 2154
Phone: (02) 9188 8474
Email: [email protected]
Website: www.thegrannyflatexperts.com.au
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