Granny Flat Builders Berowra
Monstructions specialises in granny flats Berowra, building quality secondary dwellings for homeowners across this established Upper North Shore region. Our licensed team proudly serves Berowra and nearby suburbs including Turramurra, Wahroonga and Hornsby, handling everything from DA approval through to handover.
Get A Free Quote Now!
🔥 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 Berowra, delivering quality secondary dwellings that complement the established brick homes and generous blocks characteristic of this leafy Upper North Shore suburb. We’re proud to serve homeowners throughout Berowra and nearby suburbs including Wahroonga and Hornsby, with our licensed team managing everything from DA approval through to handover.
Berowra Granny Flats Built Around Your Property
Berowra features established homes predominantly built from the 1960s through to the 1990s, with many properties set on large blocks ranging from 700sqm to over 1,000sqm. These generous block sizes and relatively flat topography make them ideal for granny flat additions. Most properties feature traditional brick homes with spacious backyards that comfortably accommodate a secondary dwelling without compromising the primary residence.
We service all areas of Berowra and surrounding Upper North Shore suburbs including Turramurra, Wahroonga, Hornsby, Mount Colah, Mount Kuring-gai and Cowan. Our team has extensive knowledge of Hornsby Council requirements and builds studio, one bedroom and two bedroom granny flats tailored to the larger blocks typical of this area. We design each granny flat to complement the established character of Upper North Shore properties.
Berowra’s property market remains strong with median house prices above $1.8 million, making granny flats an attractive investment for homeowners seeking rental income or multigenerational living solutions. Rental demand is driven by families, downsizers and professionals seeking quality accommodation in this leafy bushland setting, with granny flats typically achieving $450 to $600 per week. Building a granny flat now allows Berowra homeowners to capitalise on this demand while adding significant property value.
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 Berowra?
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 Berowra 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."
![]()
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!"
![]()
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!"
![]()
Chris C.
Products we use
FAQS
Got a question?
How much does a granny flat cost in Berowra?
Granny flat costs in Berowra start from around $120,000 for a studio, $150,000 for a one bedroom design, and $180,000 for a two bedroom granny flat. Final costs depend on your specific block conditions, chosen finishes, and Hornsby Council requirements. We provide detailed quotes tailored to your property and needs.
How long does it take to build a granny flat in Berowra?
The complete process typically takes 12 to 20 weeks in Berowra. DA approval through Hornsby Council usually takes 4 to 8 weeks, followed by 8 to 12 weeks for construction. We manage the entire timeline to ensure your granny flat is delivered efficiently.
Do I need council approval for a granny flat in Berowra?
Yes, all granny flats in Berowra 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 council requirements for a smooth approval.
Can I build on Berowra's sloping bush blocks?
Yes, many Berowra properties feature sloping terrain due to the area’s natural bushland setting. We design granny flats specifically for sloping blocks, incorporating appropriate foundations and site works. Our team assesses your property’s topography to deliver a cost effective solution that meets Hornsby Council requirements.
Do you service all areas of Berowra and surrounding suburbs?
We service all areas of Berowra and surrounding suburbs including Turramurra, Wahroonga, Hornsby. Call 1300 098 730 to discuss your project.


