The Real Cost of a Granny Flat in Sydney

Building Lasting Value with Bungalow Granny Flats

A well-planned granny flat is one of the smartest investments a Sydney homeowner can make today. With over 80 years of combined building experience in high-end residential homes, Bungalow Granny Flats provide clear details on the cost of a granny flat in Sydney to help you make informed decisions.

Our Comprehensive Granny Flat Solutions in Sydney

We offer three versatile ranges to suit your goals. Each provides a path to a quality granny flat that adds lasting value to your property.

Custom Build

Maximise your land's potential with flexible layouts. We create designs to suit challenging spaces or sloping Sydney sites perfectly, ensuring you know exactly how much a granny flat costs for your bespoke building project.

Signature

Achieve excellent returns with our proven floorplans. This range features premium inclusions as standard to ensure the cost of your granny flat in Sydney remains predictable.

DuraBuild

Built for speed, our concrete panel homes can be completed in just ten weeks for a fast turnaround.

Average Granny Flat Costs in Sydney by Size

The size is one of the most significant factors influencing the total cost of a granny flat in Sydney.

Studios (Approx. 36sqm)

These compact spaces are perfect for home offices or guest accommodation. For a high-quality, turn-key studio, you should realistically budget between $140,000 and $170,000. These typically include a smaller wet-bar style kitchenette, a bathroom and 1 bedroom or an open-plan living space.

One-Bedroom Granny Flats (Approx. 45sqm)

Offering a separate living area and bedroom, these are popular for downsizers and in cases where a full 60m2 footprint may not fit. The cost for a premium one-bedroom build typically ranges from $160,000 to $200,000.

Two-Bedroom Granny Flats (Up to 60sqm)

This is the most common size for rental investments and long-term family living. To achieve a modern, fully inclusive finish, expect a price range of $200,000 to $300,000. This usually includes 2 bedrooms, a full kitchen, laundry space and a bathroom.

How Much Does a Granny Flat Cost in Sydney?

To get a granny flat in Sydney of a standard that you would be happy to let a member of your family or a paying tenant live in, you are realistically looking closer to a range of $180,000 – $300,000. This price range is a turn-key price. So rather than just being just an empty shell, it will include everything involved in the build of your new granny flat: from earthworks to electrical and plumbing to insulation, cladding and painting. It will be a home that is functional, comfortable and welcoming.

Why Granny Flat Prices in Sydney Vary So Much

The range of prices to build a granny flat that you see on the internet these days varies dramatically. Costs of granny flats in Sydney start from as low as $100,000, but be warned, these unbelievably low-priced granny flats can be very misleading. We often have customers come to us with unrealistic budget expectations so we would like to shed some light on the matter and provide some honest information to the granny flat market out there.

Pre-Fab and Kit Granny Flats: Are They Really Cheaper?

Pre-fab granny flats and kits homes are often advertised as cheap alternatives, but again be warned, the prices originally quoted quickly creep up as you factor in the extra costs of installation, services and making the shell livable.

What’s Included in a Granny Flat Price (And What Often Isn’t)

Prices will range drastically depending on whether you are after basic finishes, through to a full luxury granny flat with all the trimmings. To understand exactly what a quoted price actually means, ask lots of questions.

• What does the price of the granny flat include?

• Have earthworks been accurately factored in and estimated?

• Is it insulated?

• Painted?

• Is a kitchen included?

• How big is it?

• Is there an oven, curtains and carpet?

• What about any retaining walls or decking?

Think carefully about what you want and need. Trying to cut costs during the build may lead to higher costs later down the track.

How Site Conditions and Earthworks Impact Cost

Pricing is affected a lot by earthworks, which is often charged as a variation during construction due to its uncertain nature. Cost of excavation or cut onsite, spoil removal, and retaining walls can add thousands of dollars to your build, so it's important to know what's covered by your contract, and get an accurate estimate of what variations may arise. Costs here can be minimised through careful design, ensuring minimal cut and excavation, having a floor height that allows for fill to be distributed onsite and not removed, and reducing the heights of retaining walls. Earthworks costs start with the design phase, and so having a builder review the design upfront can save you thousands of dollars in costs when it comes to construction.

Design, Approval and Council Costs in Sydney

On top of the costs of the build, you will also need to factor in the price of design and approvals for your granny flat. For a granny flat custom designed to suit your property, you will be looking at a price of $10,000-$30,000 including all plans and council fees. Although you can cut costs by going for standard design, just a little extra outlay to get a granny flat custom designed to your site can make the world of difference. Sydney is a hilly city with blocks of every shape and size. It is the difference between a Granny flat that gets no sun, doesn’t take full advantage of solar access and looking onto a concrete wall versus a light north-facing living space filled with sunshine, cool breezes and a view.

Again, when comparing Design & Approvals pricing, ensure you fully understand what is included and ask:

• Do you have to pay additional Certifier Fees?

• What are the fees payable to Council (such as Contributions and Bonds)?

• Are all required reports for approval included? (This includes arborists, soil classifications, bushfire, flood or any other specialist reports Council or a Private Certifier will require.)

Ways to Reduce the Cost of Building a Granny Flat

One of the best ways to reduce your cost is to ensure your design suits your site and is engineered in a way to meet all applicable standards in the most cost-effective way. By looking for a Builder who offers Design and Approval services, you can use their expertise in cost-effective construction methods to help you at the design stage.

There are also other ways to bring the price down. To reduce the costs of your granny flat, you may be able to convert an already existing garage or do some of the work yourself. Whether it is painting, landscaping or building your own deck, each will reduce the overall cost and give you the added satisfaction of playing an active role in the project.

Is a Granny Flat Worth the Investment?

When considering the price you’re willing to pay, it pays to do the math. What will your granny flat rent out for? If that is its purpose. Or how much will it increase the value of your home? The average rent of a 2 bedroom granny flat on the Northern Beaches and North Shore is well over $650/wk making the return on investment on a granny flat costing $250k an excellent investment.

Ultimately, the price you pay will reflect the new home you will receive. So do your homework and research on the current legislation and speak to a few granny flat companies before making that commitment.

Let’s Create That Extra Space Your Family Will Love

Ready to learn more about our granny flats in Sydney? Our team is here to help you explore modern floor plans that suit your needs and budget. Contact us today to learn more about our simple building process and start planning your perfect backyard addition with confidence.

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