Granny Flat Builders Lavender Bay
Monstructions specialises in granny flats Lavender Bay, building quality secondary dwellings for homeowners across this prestigious North Shore harbourside locale. Our licensed team handles everything from DA approval through to handover, proudly serving Lavender Bay, Mosman, Chatswood and Willoughby.
10+ years experience guarantee
10 years guarantee
100% customer satisfaction
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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 Lavender Bay’s established Federation and interwar homes, delivering quality secondary dwellings that complement the character of this exclusive harbourside enclave. We’re proud to serve homeowners throughout Lavender Bay and nearby suburbs including Mosman and McMahons Point, with our licensed team managing everything from DA approval through to handover.
Fully licensed bonded general contracting
Quality Workmanship
Over a decade of renovation and building experience across Sydney
Lavender Bay Granny Flats Built Around Your Property
Lavender Bay features established homes from the Federation and interwar eras, with many gracious properties on elevated blocks offering harbour glimpses. The area’s typically generous block sizes, often 600 to 1000 square metres, provide excellent scope for secondary dwellings. These established properties with substantial rear gardens are ideal for adding self contained granny flats that maximise land value.
We service Lavender Bay and surrounding North Shore suburbs including Mosman, Chatswood, Willoughby, McMahons Point, North Sydney and Waverton. Our team has extensive experience navigating North Sydney Council requirements and designing granny flats suited to the area’s heritage overlays and sloping terrain. We deliver studio, one bedroom and two bedroom granny flats tailored specifically to North Shore block characteristics.
Lavender Bay’s prestigious location and proximity to the CBD drive strong rental demand, with granny flats commanding around $650 to $850 per week. The North Shore property market continues to see strong capital growth, making secondary dwellings an intelligent investment for homeowners. With housing affordability pressures and limited rental stock, now is an ideal time to build and capitalise on rental returns.
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 Lavender Bay?
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 Lavender Bay 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 Lavender Bay?
In Lavender Bay, studio granny flats start from $120,000, one bedroom configurations from $150,000, and two bedroom designs from $180,000. Final costs depend on your specific block characteristics, chosen finishes, any slope or access challenges, and North Sydney Council requirements. We provide detailed fixed price quotes after an on site assessment.
How long does it take to build a granny flat in Lavender Bay?
Development Application approval through North Sydney Council typically takes 4 to 8 weeks, followed by 8 to 12 weeks for construction. Most Lavender Bay granny flat projects are completed within 12 to 20 weeks from initial application to handover, depending on design complexity and council assessment timelines.
Do I need council approval for a granny flat in Lavender Bay?
Yes, all granny flats in Lavender Bay require either Development Approval or a Complying Development Certificate under NSW planning laws. Monstructions handles the entire approval process with North Sydney Council, managing documentation, submissions and liaising with certifiers. We ensure your granny flat meets all council and state requirements.
Can I build on Lavender Bay's sloping harbour blocks?
Absolutely. Many Lavender Bay properties feature steep or sloping terrain, and we specialise in designing granny flats that work with natural contours. Our team has extensive experience with split level designs, pier and beam foundations, and engineering solutions specific to North Shore topography. We’ll assess your block and recommend the most cost effective approach.
Do you service all areas of Lavender Bay and surrounding suburbs?
We service all areas of Lavender Bay and surrounding suburbs including Mosman, Chatswood, Willoughby. Call 1300 098 730 to discuss your project.