Granny Flat Builders Chatswood
Monstructions specialises in granny flats Chatswood, building quality secondary dwellings for homeowners across this prestigious North Shore area. Our licensed team proudly serves Chatswood, Mosman, and Willoughby, handling everything from DA approval through to handover.
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 Chatswood’s established North Shore homes, delivering quality secondary dwellings that complement the area’s character brick and sandstone properties. We’re proud to serve homeowners throughout Chatswood and nearby suburbs including Mosman and Willoughby, with our licensed team handling everything from DA approval through to handover.
Fully licensed bonded general contracting
Quality Workmanship
Over a decade of renovation and building experience across Sydney
Chatswood Granny Flats Built Around Your Property
Chatswood features predominantly brick and sandstone homes built from the 1920s through to the 1960s, with many post-war properties on generous blocks between 600 and 900 square metres. These established North Shore properties offer excellent side and rear access, making them ideal for secondary dwellings. The level to gently sloping blocks typical of the area allow for straightforward construction without extensive earthworks.
We service homeowners throughout Chatswood, Mosman, Willoughby, Artarmon, Northbridge, and Lane Cove with our full range of granny flat designs. Our team has extensive knowledge of Willoughby Council requirements and planning controls that apply across the North Shore. We tailor every design to suit the character and dimensions of local blocks, ensuring seamless integration with established streetscapes.
Chatswood’s property market remains strong due to excellent schools, rail connectivity, and proximity to the CBD. Rental demand is robust, with quality one-bedroom granny flats achieving around $550 per week. Building a secondary dwelling now allows homeowners to capitalise on steady rental returns while adding significant property value in this tightly held North Shore location.
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 Chatswood?
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 Chatswood 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 Chatswood?
In Chatswood, granny flat costs start from $120,000 for a studio, $150,000 for a one-bedroom, and $180,000 for a two-bedroom design. Your final cost depends on your specific block characteristics, selected finishes, and any additional council requirements. We provide transparent fixed-price quotes with no hidden surprises.
How long does it take to build a granny flat in Chatswood?
Development approval typically takes 4 to 8 weeks, while construction requires 8 to 12 weeks once approved. From initial consultation to handover, most Chatswood granny flat projects are completed within 12 to 20 weeks. Our experienced team manages the entire timeline to ensure your project stays on track.
Do I need council approval for a granny flat in Chatswood?
Yes, all granny flats in Chatswood require either Development Approval or Complying Development Certificate under NSW planning laws. Monstructions handles the entire approval process on your behalf, liaising directly with Willoughby Council and certifiers. We manage all documentation, surveys, and submissions so you can relax while we navigate the requirements.
Can I build on a sloping Chatswood block?
Yes, many Chatswood properties have gentle slopes that are perfectly suitable for granny flat construction. We design solutions that work with your site’s natural contours, minimising cut and fill requirements. Our team conducts a thorough site assessment to recommend the most cost-effective approach for your specific block.
Do you service all areas of Chatswood and surrounding suburbs?
We service all areas of Chatswood and surrounding suburbs including Mosman, Chatswood, Willoughby. Call 1300 098 730 to discuss your project.