Granny Flat Builders Putney
Monstructions specialises in granny flats Putney, building quality secondary dwellings for homeowners across this established North Shore suburb. Our licensed team proudly serves Putney and nearby suburbs including Mosman, Chatswood and Willoughby, 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 Putney, delivering quality secondary dwellings that complement the established Federation and interwar homes throughout this prestigious North Shore suburb. We’re proud to serve homeowners throughout Putney and nearby suburbs including Mosman and Chatswood with our licensed team handling everything from DA approval through to handover.
Putney Granny Flats Built Around Your Property
Putney features predominantly Federation and interwar homes on generous blocks, typically ranging from 600 to 800 square metres. These established properties offer ample side and rear access, making them ideal candidates for granny flat construction. The traditional layout of North Shore homes often includes wide driveways and deep backyards that comfortably accommodate a secondary dwelling.
We service Putney and surrounding North Shore suburbs including Mosman, Chatswood, Willoughby, Ryde and Gladesville with extensive experience in local council requirements. Our granny flat designs suit the character of North Shore properties, from compact studios to spacious two bedroom layouts. Our team understands Lane Cove Council regulations and tailors each design to complement your established property and maximise available space.
The Putney property market remains strong with median house prices consistently above $2 million, making granny flats an attractive investment. Rental demand in the North Shore area is consistently high, with granny flats achieving $550 to $700 per week. Building a granny flat now allows homeowners to capitalise on rental returns while adding significant property value in this tightly held suburb.
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 Putney?
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 Putney 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 Putney?
Granny flat costs in Putney start from $120,000 for a studio, $150,000 for a one bedroom, and $180,000 for a two bedroom dwelling. Final pricing depends on your specific block characteristics, selected finishes, and Lane Cove Council requirements. We provide detailed quotes tailored to your property and needs.
How long does it take to build a granny flat in Putney?
The complete process for building a granny flat in Putney typically takes 12 to 20 weeks from start to finish. Development approval through Lane Cove Council takes 4 to 8 weeks, followed by 8 to 12 weeks for construction. We manage the entire timeline to ensure your project runs smoothly.
Do I need council approval for a granny flat in Putney?
Yes, all granny flats in Putney require either Development Approval or Complying Development Certificate under NSW planning laws. Monstructions handles the entire approval process with Lane Cove Council on your behalf. Our experienced team ensures all documentation meets council requirements for a smooth approval.
Can I build on a sloping block in Putney?
Yes, many Putney properties feature sloping terrain towards the harbour and surrounding areas. We specialise in designing granny flats that work with your site’s natural contours, using split level designs or strategic placement. Our team assesses each block individually to determine the most cost effective building solution.
Do you service all areas of Putney and surrounding suburbs?
We service all areas of Putney and surrounding suburbs including Mosman, Chatswood, Willoughby. Call 1300 098 730 to discuss your project.
Monstructions provides granny flat building across North Shore, including Huntleys Point, Millers Point and all surrounding suburbs.


