Granny Flat Builders Asquith
Monstructions specialises in granny flats Asquith, building quality secondary dwellings for homeowners across this established Upper North Shore region. Our licensed team proudly serves Asquith, Turramurra, Wahroonga and Hornsby, handling everything from DA approval through to handover.
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🔥 June Special! Free site inspection + council feasibility check included. Limited to 3 jobs this month. Call 1300 098 730
IS YOUR PROPERTY READY FOR A GRANNY FLAT?
Monstructions specialises in building granny flats in Asquith’s established homes, delivering quality secondary dwellings that complement the generous blocks and leafy character of this Upper North Shore suburb. We’re proud to serve homeowners throughout Asquith and nearby suburbs including Turramurra and Wahroonga, with our licensed team handling everything from DA approval through to handover.
Asquith Granny Flats Built Around Your Property
Asquith features predominantly established homes from the 1960s to 1980s, set on generous blocks typically ranging from 650 to 900 square metres. These spacious properties with side access and established gardens are ideal for granny flat additions. The leafy streetscapes and substantial backyards provide excellent opportunities for secondary dwellings without compromising the main residence.
We build granny flats throughout Asquith, Turramurra, Wahroonga, Hornsby, Waitara and Mount Colah, with extensive knowledge of Hornsby Council requirements. Our designs are tailored to suit the Upper North Shore’s larger blocks and established neighbourhood character. From compact studios to spacious two bedroom flats, we create secondary dwellings that complement your existing property and maximise rental returns.
The Asquith property market remains strong due to excellent schools, train access to the CBD, and family friendly amenities. Rental demand for quality granny flats in the Upper North Shore typically achieves $450 to $550 per week. Building a granny flat now allows homeowners to generate passive income while adding substantial value to their established property.
Our Granny Flat Services
Whether you’re adding a studio for rental income or a full 2 bedroom dwelling for family, our licensed team delivers quality granny flats across Sydney.
Detached Granny Flat
A fully self-contained dwelling separate from your main home.
Attached Granny Flat
Built onto your existing home, sharing one wall.
Studio Granny Flat
A compact, cost-effective single-room secondary dwelling.
2 Bedroom Granny Flat
Spacious secondary dwelling perfect for family or rental income.
Garage Conversion
Transform your existing garage into a fully liveable granny flat.
Council Compliant Builds
We handle all DA approvals and council paperwork for you.
Benefits of Granny Flats
Investing in a granny flat is one of the smartest decisions you can make as a homeowner.
Increased Property Value
Adds $150,000+ to your home’s value
Generate Rental Income
Earn $400-$600+/week from a quality granny flat
House Family
Keep loved ones close with their own private space
Fast DA Approval
We handle all council paperwork for you
Get Started with Monstructions Today!
Are you ready to transform your land into a beautiful and functional space? Contact us today for a free quote and let our granny flat experts bring your vision to life. Experience the quality and dedication that set us apart from the rest.
Our Renovation Process
Initial Consultation
We start with a free consultation to discuss your ideas and requirements. Our team will guide you through the design possibilities, ensuring your vision is captured.
Design & DA Approval
We design your granny flat and manage the full council approval process.
Construction
Our licensed team builds your granny flat to the highest standard.
Final Inspection
Thorough inspection before handover to ensure everything is perfect.
How Much Does a Granny Flat Cost in Asquith?
Every granny flat is different. Click the button below to hear back from us within 2 hours!
Studio Granny Flat
Everything you need in a compact, smart design.- Single open-plan living space
- Kitchenette
- Bathroom
- Fully self-contained
- Council compliant
- Fixed price contract
- Tailored to your budget
1 Bedroom Granny Flat
One bedroom design for rental income or family.- Separate bedroom
- Full kitchen
- Full bathroom
- Living area
- Council compliant
- Fixed price contract
- Tailored to your style & needs
2 Bedroom Granny Flat
Two bedrooms for maximum space and rental return.- Two separate bedrooms
- Full kitchen
- Full bathroom
- Living area
- Council compliant
- Fixed price contract
- Fully customised to your vision
Why Asquith Homeowners Choose us?
As leading granny flat builders in Sydney, we pride ourselves on our commitment to quality and customer satisfaction. We make building simple, stress-free and done right the first time.
10+ Years of Building Experience
Our team has delivered hundreds of successful builds across Sydney; on time and within budget.
On Time, On Budget
We keep you informed at every step and never surprise you with hidden costs.
Trusted by Sydney Homeowners
From Sutherland Shire to the North Shore, homeowners trust us to deliver.
Licensed and Fully Insured
Every job is handled by licensed professionals. You get quality workmanship backed by full insurance.
Don't Take Our Word For It
"It took me a couple of months of research before choosing Monstructions. They have been nothing but amazing. They were extremely helpful throughout the process, made great suggestions to help me overcome some obstacles, assisted with any changes I wanted made to the flat and was very quick with responses. They took care of all the permits and made it was very easy and smooth process. Quality finish and craftsmanship. I'm so happy and I would highly recommend them to everyone. Thank you to the team for completing the flat in a matter of months, thank you for giving me a beautiful space I can call home. I absolutely love it."
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Joanne T.
"We recently received handover of our granny flat and we all couldn't be happier! From the initial meetings about design and budget right through to completion, everyone has been an absolute pleasure to deal with. The project was delivered early, on budget and the finishes are immaculate. My mum is thrilled to move into her house, we highly recommend Monstructions to anyone looking to build a granny flat!"
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Kimberly R.
"We found our experience with Monstructions to be excellent, from start to finish. Communication lines always open, clear and organised, delivered on everything they said they would in a timely fashion. The quality of workmanship is outstanding, and the final result exceeded our expectations. Our new space is not only beautifully designed but also incredibly functional. Thank you for making this such a positive experience!"
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Chris C.
Products we use
FAQS
Got a question?
How much does a granny flat cost in Asquith?
Granny flat costs in Asquith start from $120,000 for a studio, $150,000 for a one bedroom, and $180,000 for a two bedroom design. Final pricing depends on your specific block conditions, choice of finishes, and Hornsby Council requirements. We provide detailed fixed price quotes after an initial site assessment.
How long does it take to build a granny flat in Asquith?
The complete process takes approximately 12 to 20 weeks in Asquith. DA approval through Hornsby Council typically requires 4 to 8 weeks, followed by 8 to 12 weeks for construction. We manage the entire timeline to ensure your granny flat is completed efficiently and to the highest standards.
Do I need council approval for a granny flat in Asquith?
Yes, all granny flats in Asquith require either Development Approval or a Complying Development Certificate under NSW planning laws. Monstructions handles the entire approval process with Hornsby Council on your behalf. Our experienced team ensures all documentation meets local requirements for a smooth approval.
Can sloping blocks in Asquith accommodate granny flats?
Absolutely. Many Asquith properties feature sloping terrain, and we specialise in designing granny flats suited to these conditions. Our designs incorporate split levels, strategic placement and appropriate footings to work with your block’s natural contours while meeting Hornsby Council requirements.
Do you service all areas of Asquith and surrounding suburbs?
We service all areas of Asquith and surrounding suburbs including Turramurra, Wahroonga, Hornsby. Call 1300 098 730 to discuss your project.


