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The Granny Flat Experts

We do it all from start to finish!

Design

Approval

Construction

Our company specialises in the design, approval and construction of granny flats. We’ve constructed over 1000 granny flats over the years and our customer service along with our premium quality granny flats is second to none. We are focused on building genuine and honest relationships with all our customers. Our promise is that we will provide you with an exceptional service and a product that meets your needs and is within your budget.

 

Whether you decide to build your granny flat to move into, achieve additional income or so that you can keep loved one's close, we're here to ensure you achieve your goal. We will provide you with an customised tender proposal for your review and as part of the package and we allow to custom design your granny flat to ensure it suits your property and satisfies any specific requirements that you may have.

 

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.

Our Simple 3 Step Process

If you're thinking of building a granny flat, there are plenty of things to think about before starting. Firstly, what type of property are you buying, can it fit a granny flat? Are you able to get an approval under a Complying Development Certificate? What type of layout would work best for my property? All these questions we can assist you with and help you plan, design and build a granny flat. We will take a look at some of the things you'll need to consider before you start your project.

Free Site Assessment and Fixed Price Tender

We conduct a FREE site assessment and visit your property to evaluate your requirments. 

Design, Approval and Colour Selections

We commence the custom design, preapre a NSW Fair Trading Building Contract and invite you to our showroom to consult and help choose your colours and finishes. 

Construction and Handover

A pre-commencment meeting will be organised and the construction process run smoothly and efficiently. 

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Our Completed Projects

​At The Granny Flat Experts, we take pride in every project we complete. Our finished granny flats showcase the quality craftsmanship, smart design, and attention to detail that set us apart. From compact one-bedroom retreats to spacious three-bedroom homes, each project is a reflection of our commitment to creating custom granny flat designs that perfectly suit our clients’ needs and lifestyles. Browse through our completed projects to see the variety of floor plans, finishes, and design styles we’ve brought to life and get inspired to start your own granny flat journey with The Granny Flat Experts.

Example Floor Plans

At The Granny Flat Experts, we offer a wide range of granny flat floor plans to suit every style, size, and budget. Whether you’re after a simple, functional layout or a custom granny flat design tailored to your property, our team can bring your vision to life. Choose from one of our existing floor plans or work with us to customise every detail — from the layout and finishes to the overall design. We’re here to make the process simple, seamless, and stress-free. Contact us today to start designing and building your dream custom granny flat with The Granny Flat Experts.

Our one-bedroom granny flat floor plans are the perfect solution for singles and young couples looking to enjoy independent living without compromising on comfort or style. Each custom granny flat floor plan is thoughtfully designed to maximise space, light, and functionality. The open-plan living areas create a true sense of spaciousness and flow, ideal for relaxing, entertaining, or welcoming guests. With modern design features, high-quality finishes, and smart layouts, our one-bedroom granny flats are practicality in one beautifully crafted space. Discover how our custom designs can transform your backyard into a stylish, self-contained retreat.

Our two-bedroom granny flat floor plans are an excellent choice for young families, downsizers, and property investors seeking space, comfort, and exceptional value. Designed with smart, efficient floor plans, these custom granny flats make the most of every square metre, offering modern open-plan living, privacy, and functionality. For investors, a two-bedroom granny flat provides an outstanding rental return, often outperforming a comparable two-bedroom unit, without the ongoing cost of strata levies or shared property fees. Whether you’re looking to accommodate family, generate extra income, or add value to your property, our custom two-bedroom granny flat designs deliver the perfect blend of practicality and modern design.

Our three-bedroom granny flat floor plans are perfect for larger families or those who simply want extra space for guests, work, or hobbies. Each design features a cleverly planned layout that maximises space, comfort, and functionality, creating a home that feels open, bright, and welcoming. These custom granny flats offer all the comfort of a full-sized home in a compact, efficient footprint. Whether you’re building for extended family, looking to increase your property’s value, or creating a flexible living space, our three-bedroom granny flat designs give you plenty of room to make it truly your own.

02 9863 2854

Office:

Unit 10 / 7 Hoyle Avenue, Castle Hill NSW 2154

PO Box 7975 Baulkham Hills NSW 2153

Monday - 8:30am - 5:00pm

Tuesday - 8:30am - 5:00pm

Wednesday - 8:30am - 5:00pm

Thursday - 8:30am - 5:00pm

Friday - 8:30am - 5:00pm

Saturday - Closed

Sunday - Closed 

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