Granny Flat Builders Sylvania
Monstructions specialises in granny flats Sylvania, building quality secondary dwellings for homeowners across this sought after waterside suburb. Our licensed team proudly serves Sylvania, Miranda, Sylvania Waters and Taren Point, 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 Sylvania, delivering quality secondary dwellings designed for the suburb’s spacious family home blocks and waterside lifestyle. We’re proud to serve homeowners throughout Sylvania, Miranda and Sylvania Waters with our licensed team handling everything from DA approval through to handover.
Sylvania Granny Flats Built Around Your Property
Sylvania features predominantly brick family homes built from the 1960s through to the 1990s, with many properties on generous blocks ranging from 550 to 800 square metres. These spacious lots with wide street frontages and established gardens are ideal for granny flat additions. Most properties offer excellent rear or side access, making construction straightforward and minimising disruption to the main residence.
We service Sylvania, Sylvania Waters, Miranda, Taren Point, Gymea and Caringbah with granny flat solutions tailored to St George area blocks. Our team has extensive experience with Sutherland Shire Council requirements, ensuring smooth DA approvals for your project. Whether you need a compact studio, one bedroom dwelling or spacious two bedroom granny flat, we design each build to maximise your block’s potential and complement your existing home.
Sylvania’s strong property market and proximity to beaches, parklands and Westfield Miranda make rental demand consistently high. Granny flats in the area achieve weekly rents from $450 to $650, delivering excellent returns for investors and homeowners seeking passive income. With interest rates stabilising and housing supply constraints continuing, now is an ideal time to add a secondary dwelling to your Sylvania 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 Sylvania?
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 Sylvania 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 Sylvania?
Granny flat costs in Sylvania start from approximately $120,000 for a studio, $150,000 for a one bedroom, and $180,000 for a two bedroom dwelling. Your final cost depends on your specific block conditions, choice of finishes, any site works required, and Sutherland Shire Council requirements. We provide detailed fixed price quotes with no hidden surprises.
How long does it take to build a granny flat in Sylvania?
The complete process typically takes 12 to 20 weeks from start to finish in Sylvania. DA approval through Sutherland Shire Council usually takes 4 to 8 weeks, followed by 8 to 12 weeks for construction. We manage the entire timeline and keep you informed at every stage.
Do I need council approval for a granny flat in Sylvania?
Yes, all granny flats in Sylvania require council approval, either through Development Application or Complying Development Certificate under NSW planning laws. Monstructions handles the entire approval process with Sutherland Shire Council on your behalf. Our experienced team ensures your application meets all requirements for a smooth, hassle free approval.
Can I build on a sloping Sylvania block?
Absolutely. Many Sylvania properties have gentle slopes, and we regularly design granny flats to suit sloping terrain. We assess your specific site conditions and recommend foundation solutions that work with your block’s natural contours. Our designs maximise your property’s potential while managing any level changes efficiently.
Do you service all areas of Sylvania and surrounding suburbs?
We service all areas of Sylvania and surrounding suburbs including Miranda, Sylvania Waters, Taren Point. Call 1300 098 730 to discuss your project.


