Why Choose Us

Choose Inhouse Granny Flats for a unique and personalised experience in building your dream granny flat, with direct access to expert builders and a custom design process that sets us apart from the competition.

Inhouse Granny Flat Builder

At Inhouse Granny Flats, we know that competitor companies are unique in their own way.

Our company is built on reputation and as we like to say, “we’re not just better, we’re different”.

One of the many reasons to choose us is to speak directly with a granny flat builder; from the moment you request the initial site inspection until the final handover. Our expert builder will be there to answer any questions you may have as well as offer you professional advice along the way.

Our clients also choose us because of our custom design process. We provide every client with the opportunity to design their own granny flat layout to suit them and their land with the guided help of our Builders and Architects.

What makes us different?

Why Choose Us?

Our company is built on reputation and as we like to say, “we’re not just better, we’re different”.

Experienced Team

Inhouse Granny Flats is an established company with over 25 years of experience in the construction industry.

Extra Inclusions

We offer distinctive style and exceptional quality interior and exterior inclusions with all our granny flat constructions.

Custom Designs

You’ll have over 2000 designs to choose from. Have something specific in mind? We can build something custom to suit your needs.

Satisfaction Guaranteed

We will help you throughout the entire process from start to finish. We pride ourselves in quality customer service.

Inclusion Comparison Table

Here are some ways that make Inhouse Granny Flats different to our competitors.

INCLUSION ITEM Inhouse GRANNY FLATS (Standard inclusions) OTHER COMPANIES (Standard inclusions)
Granny flat designOur designs are custom designed and built on site, not pre-fabicated or flat packedStandard or pre-fabricated designs/flatpacked
Showroom/Walk insNo appointment required State of the art showroom with knowledgeable staff to walk you throughNeed an appointment Only open a few days a week
Deposit$2,000Over $6,000
2 bedroom granny flat size60sqmBelow or up to 60sqm
Granny Flat BuilderOn call 24/7By appointment only
Building DesignerAvailable 5 days a weekBy appointment only
Floor structureConcrete piers under concrete slabNo piers included
Floor CoveringsChoice of tiles, laminate flooring or carpet at same priceLaminate or carpet only
PaintYour choice from our large selectionSet colours only
Bathroom Wall TilingWall tiling to 1.2m and 2.1m in showerSkirting tiles only
Bathroom extrasFramed shower screen, showerhead and mixerShower screen only
Separate metersSeparate gas & electrical meters/water flow readers are included as standardSeparate meters are an additional cost
Kitchen SizeCustom designed to suit your needsStandard designs that cannot be altered
Hot Water SystemLPG gas bottles/connection to natural gasElectrical Heat Pump or LPG gas bottles only
Range HoodDucted to outsideDucted to roof cavity only
IXL light in bathroomDucted to outsideDucted to roof cavity only
ExteriorCladding, Bricks or Blue Board renderBrick or hardie board only
Pest ControlPermanent termite matting installedTemporary chemical spray
RoofTiles or Colorbond SteelColorbond steel only
Internal SarkingYesNot all
Rainwater TankIncluded if required by BASIXExtra cost if required by BASIX
GardenExternal tapNot included
Service connections + underground trenchingUp to 20 lineal metres included in our priceUp to 5 lineal metres only
Electrical11 double power points9 double power points

Do you have a property in mind to buy?



  • Ensure feasibility of investment
  • Avoid wasting time and money
  • Determine if a granny flat can be built before purchasing the property


  • Customise granny flat design
  • Ensure compliance with local council regulations
  • Assess land characteristics that can impact construction


  • Optimise investment
  • Increase rental income
  • Add value to your property
  • Provide additional living space for family or guests

Open Home Registration

Register with us today and receive a weekly alert regarding future granny flat showings in your area.


Trusted by Hundreds of Clients


Scroll to Top