by Granny Flat Builder | Apr 9, 2025 | Central Coast Granny Flats, Granny Flats, Sydney Granny Flats
Recent research featured in major media outlets has revealed a surprising fact: up to a million residential properties across Australia may have the space and zoning potential to accommodate a granny flat.
Notably, Sydney, the Central Coast, and Newcastle emerged as the areas with the highest number of properties suitable for secondary dwellings — highlighting the sheer scale of untapped opportunity for homeowners and investors alike.
Top 50 Suburbs With Granny Flat Potential
Some of the top-performing suburbs with the most opportunities include:
Sydney Region
Baulkham Hills, Castle Hill, Cherrybrook, Carlingford, West Pennant Hills, Frenchs Forest, St Ives, Epping, Wahroonga, Blacktown, Pymble, Turramurra, Winston Hills, Quakers Hill, Kellyville, St Clair, St Marys, Beecroft, Seven Hills, Greystanes, Ryde, Hornsby, Eastwood, Belrose, North Rocks, Kings Langley, Forestville, Cranebrook, Killara, Bradbury, Strathfield, Ashfield, Glenmore Park, Thornleigh, Roseville, Doonside, Mount Colah, Hornsby Heights, North Ryde, Allambie Heights, Beacon Hill, South Penrith
Central Coast & Newcastle
Wyoming, Bateau Bay, Terrigal, Umina Beach, Narara, Berkeley Vale, Avoca Beach, Killarney Vale, Green Point, Gorokan
If you own a home in one of these areas, adding a granny flat could be a smart next move.
Granny Flats and Tax Deductions in Australia
One of the reasons granny flats have become so attractive to property owners is the potential for tax deductions. When built and rented out under the right conditions, granny flats can be income-generating assets — and the associated expenses may be deductible.
Want to understand how it works? Take a look at our Guide to Making Your Granny Flat Tax Deductible.
Why Granny Flats Are Gaining Popularity
As property prices rise and the housing supply remains under pressure, many Australians are turning to granny flats as a practical solution — both financially and socially.
Whether it’s to generate rental income, provide space for adult children or ageing parents, or increase property value, granny flats offer homeowners flexibility and long-term benefits. And with rental demand surging across NSW, especially in metro and coastal regions, the timing has never been better.
The Benefits of Building a Granny Flat
Granny flats (or secondary dwellings) are no longer just for grandparents. Here’s why more people are building them:
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Earn Extra Income
Renting out your granny flat can provide a reliable second income to help pay the mortgage or fund other goals.
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Increase Your Property Value
A well-designed granny flat can significantly boost your home’s market appeal and resale value.
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Enjoy Flexible Use
Perfect for multigenerational living, guest accommodation, or future downsizing without leaving your neighbourhood.
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Contribute to Local Housing Solutions
In regions facing tight rental markets, offering a secondary dwelling can provide much-needed affordable housing options.
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Potential Tax Advantages
Depending on how your granny flat is used, you may be eligible for tax deductions on expenses like maintenance, depreciation, and insurance.
Granny flats represent a smart, future-proof strategy for homeowners looking to get more from their property — especially in high-demand areas like Sydney, Newcastle, and the Central Coast.
If you’re considering building a granny flat, get in touch with our experienced team to discuss the possibilities for your site. Whether it’s for family, lifestyle, or rental return, we’ll help you make it happen.
by Granny Flat Builder | Jan 19, 2025 | Central Coast Granny Flats, Completed Granny Flats, Granny Flats
Double Income Investment Granny Flat in Killarney Vale
This couple’s decision to enhance their investment property in Killarney Vale was driven by a desire to maximise its rental income potential. By adding a granny flat, they not only increased the property’s value but also made better use of their existing asset. Their vision came to life with Acrow Granny Flats and the sleek, contemporary design of The Prime Plus. Completed in 2024, this two-bedroom granny flat offers practicality, comfort, and style.
Situated on a gently sloping block, the project required a tailored approach to meet drainage regulations. Acrow’s team expertly incorporated a stormwater dispersion trench into the build, ensuring the property was fully compliant with council requirements. This seamless handling of site challenges allowed the project to progress smoothly, maintaining both quality and timelines.
The project was submitted under a Complying Development Certificate (CDC), simplifying the approval process. Acrow’s expertise in navigating local council and regulatory requirements ensured a hassle-free experience for the owners, enabling them to focus on their investment goals.
Killarney Vale Granny Flat Gallery
Move-In Ready with Acrow’s Inclusions
One of the standout features of this project was Acrow’s exceptional standard inclusions. Robert and Kerrie opted for these inclusions without the need for upgrades, as they provided everything necessary for a move-in ready granny flat. From air conditioning to ceiling fans, blinds, and a polished interior finish, the property was designed to be low-maintenance and tenant-ready from day one.
Why Choose The Prime Plus?
The Prime Plus design offers an efficient layout that maximises space while delivering a modern aesthetic. Its thoughtful design makes it a popular choice for those seeking a stylish yet functional granny flat for rental purposes or additional family accommodation.
If you’re looking to get more from your existing property, Acrow’s proven expertise and high-quality inclusions ensure a superior building experience. Contact Acrow today to explore how we can bring your vision to life.
by Granny Flat Builder | Dec 11, 2024 | Central Coast Granny Flats, Completed Granny Flats, Granny Flats
Modified Willow Granny Flat Beside a Pool in Central Coast
Claire and Darren’s property transformation revolved around creating a perfect space for a loved one while taking advantage of the unique layout of their backyard. Their vision came to life with a modified version of The Willow, tailored to fit perfectly in the narrow space beside their existing pool. The original 60m2 two-bedroom Willow design was reimagined as a one-bedroom granny flat of 50m², with the porch relocated to the front to suit the narrow space. This clever modification not only maximised functionality but also made approval straightforward under a Complying Development Certificate (CDC), saving time compared to a Development Application.
The granny flat was built using bearers and joists, supported by screw piers specified by the engineer to ensure a solid foundation on the site. This is especially important around a swimming pool. With a timber frame and truss, the granny flat is durable and aesthetically pleasing – and was quick to get up onsite. To meet compliance requirements, a balustrade was added to the deck, as it was elevated over 1 meter high. This thoughtful addition blends safety and aesthetic appeal, complementing the granny flat’s personalised design.
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Saratoga Granny Flat Gallery
Custom features and a new home for a loved one
Every granny flat with Acrow can be customised in the colour selection process, with choices within inclusions and upgrades available. Claire and Darren selected several upgrades to add a personal touch and elevate the flat’s functionality:
- Bathroom enhancements, including upgraded floor tiles, a premium shower head, vanity, and mirror.
- White board sliding doors for the bedroom wardrobe, offering a sleek alternative to mirrored finishes.
The finished granny flat is a bright, inviting space that Claire and Darren’s mother now calls home. Designed with comfort and accessibility in mind, the flat’s proximity to the main house and pool creates a perfect balance of privacy and connection for multigenerational living.
The Willow – a Granny Flat to fit your vision
The Willow is one of Acrow’s most versatile designs, making it easy to modify for unique site layouts like Claire and Darren’s. Its efficient footprint is ideal for properties requiring creative solutions, and with Acrow’s expertise in CDC approvals, the process is faster and smoother.
If you’re considering a granny flat for your property, Acrow’s experienced team can help bring your ideas to life. From design to construction and handover, we’re with you every step of the way.
Book a free site inspection for your Granny Flat on the Central Coast – or anywhere in NSW or ACT
by Granny Flat Builder | Nov 27, 2024 | Central Coast Granny Flats, Completed Granny Flats, Granny Flats
The Cube Granny Flat in Saratoga: Design and Durability
Flori and Gabriel’s journey to building their dream granny flat in Saratoga culminated in a project that met all their expectations and more. Completed in 2024, the two-bedroom granny flat showcases the clean, modern lines of The Cube design, enhanced by thoughtful features like a skillion roof with raked ceilings in the living areas.
Saratoga, known for its relaxed coastal charm and leafy surroundings, presented some site-specific challenges for the build. The sloping block required scaffolding during construction and the inclusion of a stormwater dispersion trench. Additionally, the property’s BAL 29 bushfire classification called for stringent construction methods and fire-resistant materials, ensuring the granny flat is not only stylish but also safe and compliant.
One standout aspect of this project was the significant cost saving. Flori and Gabriel had initially engaged another builder but were shocked when the price increased by $100,000 over the course of a year for a comparable two-bedroom granny flat. Switching to Acrow not only delivered a more reliable and professional experience but also helped them achieve their dream within their original budget.
Flori and Gabriel opted for Acrow’s standard inclusions during the color selection process, resulting in a streamlined yet high-quality finish.
Saratoga Granny Flat Gallery
Saratoga Granny Flat Five Star Client Review
Flori left a glowing 5-star review, reflecting her and Gabriel’s satisfaction with their Acrow experience:
Our granny flat project in Saratoga was completed mid-September 2024 and we are extremely pleased with the final product. We approached Acrow Homes based on their excellent reviews and after having a not-that-pleasant experience with another building company that in the course of the year increased their price by $100k (and that’s on a 2-bed granny flat!!).
Mick and Chris are true professionals, and it was a pleasure to work with them. Chris managed the project with great care towards details, keeping our interest at heart, being always responsive and providing us with regular updates.
A special mention to Crystal who has provided us with weekly email updates on the progress, always responsive and helping when needed. She has also taken us through the process of choosing the colors for the interior/exterior, the tiles, and everything else inside the flat, coming up with recommendations when we were getting stuck.
From the start of the process to the finish, it went very smoothly. Communication was great throughout the entire project. No massive surprises in the scope of work, however to set expectations, when building a new home there’s always something that requires a variation therefore budgets should allow for that.
In summary, Acrow Homes have done an outstanding job for us and we’re confident they will handle future projects with the same care and excellence they have provided to us. For those that are not feeling 100% confident in their chosen builder, it doesn’t hurt giving Acrow a call and see if they can help you.
Why Choose The Cube?
The Cube design combines modern aesthetics with efficient use of space, making it a popular choice for clients seeking a two-bedroom granny flat. You can learn more about this design on our Cube Granny Flat design page.
If you’re considering building in a BAL 29 area like Saratoga, Acrow’s experience with bushfire compliance and their commitment to quality ensure your project will be completed to the highest standard. Contact Acrow today to discuss your vision!
Book a free site inspection for your Granny Flat on the Central Coast – or anywhere in NSW or ACT
by Granny Flat Builder | Nov 20, 2024 | Central Coast Granny Flats, Completed Granny Flats, Granny Flats
Located in the picturesque coastal town of Avoca Beach, NSW, Diana’s granny flat project was initially intended to serve as a professional office for her work as a nutritionist and naturopath. However, upon completion, Diana decided to use the space as a rental property, showcasing its flexibility and the value of thoughtful design.
This project is a perfect example of how a granny flat can adapt to changing needs. Whether used as a workspace or a rental property, the finished build adds significant value to Diana’s home while blending seamlessly with the charm of its coastal surroundings.
A Custom Design with Stylish Features
Diana’s granny flat was designed to balance functionality and aesthetics. The dual skillion roof, paired with striking raked ceilings, gave the interior an airy, open feel, while hi-lite windows in the living and kitchen areas maximized natural light throughout the day. In the bedrooms, barn doors added a modern touch, combining style with space-saving practicality. While the design included these unique features, Diana opted for Acrow’s standard inclusions for the finishes, ensuring a cost-effective yet polished result.
Avoca Beach’s relaxed coastal vibe was complemented by the granny flat’s clean lines and contemporary design, making it both a practical living space and a visually appealing addition to the property.
Avoca Beach Granny Flat Gallery
Meeting the Challenges of the Site
Building in Avoca Beach often comes with unique site considerations, and Diana’s property was no exception. The sloping land required scaffolding during construction, as well as a retaining wall to stabilize the area and create a functional outdoor space. Acrow handled these challenges with expertise, incorporating a stormwater dispersion trench to manage runoff and ensuring all work met local council requirements.
Adding to the complexity, the property was located in a BAL 29 bushfire zone. Acrow’s team adhered to strict bushfire regulations, selecting fire-resistant materials and incorporating construction techniques that ensured compliance while maintaining the aesthetic integrity of the design.
A Flexible Future
The completed granny flat is not only a functional space but also a versatile investment. Designed with Diana’s original business needs in mind, it now serves as a stylish and comfortable rental property. Its contemporary design, high-quality construction, and location in Avoca Beach make it an attractive option for tenants while adding long-term value to the property.
This project demonstrates how Acrow Granny Flats delivers tailored solutions to meet the unique needs of each client. Whether building on a challenging site, complying with bushfire regulations, or creating a flexible design, Acrow ensures that every project results in a space that’s both practical and beautiful.
Book a free site inspection for your Granny Flat on the Central Coast – or anywhere in NSW or ACT
by Granny Flat Builder | Oct 2, 2024 | Central Coast Granny Flats, Completed Granny Flats, Granny Flats
BAL29 Granny Flat Completed in Tumbi Umbi
Jackie and Sean recently added a beautiful 2-bedroom granny flat to their investment property in Tumbi Umbi on the Central Coast, using Acrow Granny Flats. The project, completed in 2023, showcases Acrow’s expertise in delivering high-quality homes even in challenging environments like those with bushfire risks.
The flat, built under DA approval, used the popular Cube design and featured a steel frame and truss construction with screw piers by B&J. Project Manager Dario and Sales Manager Mick ensured a smooth, efficient process, starting from the early planning stages all the way through to the final handover. This home was rented out for $450 per week shortly after completion, demonstrating its immediate value as an investment.
Managing a tricky location and BAL29 requirements
Given the location of the property on a busy main road, the team made some adjustments to the usual schedule, starting early in the morning to manage deliveries and avoid disrupting traffic. This thoughtful planning ensured that the project ran smoothly without delays, a testament to Acrow’s proactive project management.
Aside from minor upgrades like a fixed overhead shower and a glass shelf, the granny flat was built according to standard selections. However, due to its location in a Bushfire Attack Level (BAL) 29 zone, certain changes were made to comply with stringent safety requirements. These included the installation of eave vents, a hardwood subfloor, and aluminium flyscreens. With a BAL 29 rating, homes must be able to withstand increased levels of radiant heat and ember attack, which made these upgrades essential for ensuring the safety and durability of the structure.
BAL29 Granny Flat Tumbi Umbi Review
Jackie left a glowing 5-star review on Google, reflecting her satisfaction with the build process and Acrow’s service:
“We are so happy with our 2 bedroom Acrow Granny Flat. The whole process was seamless and we were very happy with the way the Acrow team looked after our build right from day 1.
During construction, Dario always made us feel at ease, and we are very grateful for his expertise and experience in managing any situation to ensure it was as stress-free as possible for us.
Dario and the team’s communication was always fantastic. We really appreciated his honesty and ability to sort out any scenario with our best interest in mind.
Overall, we are very happy with our new flat and would 100% build with the Acrow team again. THANK YOU!”
BAL29 Granny Flat Tumbi Umbi Project Gallery
Local Granny Flat Builder Central Coast Tumbi Umbi
Tumbi Umbi, located on the NSW Central Coast, offers a peaceful suburban lifestyle with close proximity to both natural beauty and essential amenities. With convenient access to local schools, shopping centres, and beaches, it’s an attractive location for families, retirees, and investors alike. The area’s strong sense of community and continuous development make it an ideal choice for those looking to invest in a granny flat, offering both functional living space and the potential for solid rental returns.
As a locally-based company serving Tumbi Umbi and the broader Central Coast, Acrow Granny Flats is proud to be the go-to builder for granny flat construction in this region. With over two decades of experience, we have a deep understanding of the local land and council requirements, including submitting Development Applications (DA) with Central Coast Council. Whether it’s managing bushfire safety regulations in high-risk areas like Tumbi Umbi or meeting flood zone requirements around Tuggerah Lake, our team has the expertise to ensure a compliant and successful build.
For homeowners and investors in Tumbi Umbi, Acrow Granny Flats is the trusted name for quality builds, with a focus on delivering exceptional results while keeping your budget in mind. We provide a wide range of designs and floor plans, from fully custom builds to cost-effective packages, ensuring that every project is tailored to your specific needs. Whether you’re expanding your property for family use, adding value to your investment, or planning for retirement, Acrow Granny Flats is here to make your vision a reality.
Book a free site inspection for your Granny Flat on the Central Coast
