Granny Flat Builders Cheltenham
Monstructions specialises in granny flats Cheltenham, building quality secondary dwellings for homeowners across this established Upper North Shore suburb. Our licensed team handles everything from DA approval through to handover, proudly serving Cheltenham, Turramurra, Wahroonga and Hornsby.
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 Cheltenham, creating quality secondary dwellings that complement the established homes and generous blocks throughout this leafy Upper North Shore suburb. We’re proud to serve homeowners throughout Cheltenham and nearby suburbs including Turramurra and Wahroonga, 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
Cheltenham Granny Flats Built Around Your Property
Cheltenham features established homes built predominantly from the 1960s through to the 1990s, set on generous blocks typically ranging from 700 to 1200 square metres. These spacious properties with large rear gardens are ideal for granny flat construction. The predominant housing stock includes single level brick homes and split level designs that offer excellent potential for secondary dwellings.
We service Cheltenham, Turramurra, Wahroonga, Hornsby, Beecroft and Pennant Hills with expert granny flat construction tailored to Upper North Shore properties. Our team has extensive knowledge of Hornsby Shire Council requirements and planning controls. Whether you need a studio, one bedroom or two bedroom granny flat, we design solutions that complement your existing home and maximise your block’s potential.
The Cheltenham property market remains strong with established homes on large blocks highly sought after by families seeking quality North Shore living. Rental demand is driven by the area’s excellent schools, transport links and leafy appeal, with granny flats achieving around $550 to $650 per week. Building a granny flat now provides immediate rental income while adding significant long term value to your 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 Cheltenham?
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 Cheltenham 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 Cheltenham?
Granny flat costs in Cheltenham start from around $120,000 for a studio, $150,000 for a one bedroom, and $180,000 for a two bedroom design. Final costs depend on your specific block conditions, choice of finishes, and Hornsby Council requirements. We provide detailed fixed price quotes tailored to your property and needs.
How long does it take to build a granny flat in Cheltenham?
The complete process typically takes 12 to 20 weeks in Cheltenham. DA or CDC approval through Hornsby 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 from approval through to handover.
Do I need council approval for a granny flat in Cheltenham?
Yes, all granny flats in Cheltenham require either Development Approval or Complying Development Certificate under NSW planning laws. Monstructions handles the entire approval process with Hornsby Council on your behalf. Our experienced team ensures your application meets all requirements for a smooth approval.
Can I build on a sloping block in Cheltenham?
Yes, many Cheltenham properties feature sloping terrain and we regularly design granny flats to suit these conditions. Our team assesses your specific site and creates solutions that work with the natural slope, whether that involves split level designs or appropriate foundation work. We factor site costs into your quote upfront.
Do you service all areas of Cheltenham and surrounding suburbs?
We service all areas of Cheltenham and surrounding suburbs including Turramurra, Wahroonga, Hornsby. Call 1300 098 730 to discuss your project.
Monstructions provides granny flat building across Upper North Shore, including Berowra Waters, Cherrybrook and all surrounding suburbs.