Home Extensions Cheltenham
If you’re looking for home extensions Cheltenham homeowners trust, you’ve found the right team. Monstructions handles everything from initial design through to final handover, proudly serving Cheltenham, Beecroft, Pennant Hills and all neighbouring suburbs across the Upper North Shore area.
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 HOME READY FOR AN EXTENSION?
Monstructions specialises in home extensions Cheltenham, expertly designing and building additions that suit the homes and families throughout the Upper North Shore area. We’re proud to serve homeowners throughout Cheltenham, Beecroft and Pennant Hills and surrounds with our licensed team managing everything from initial design through to final handover.
Fully licensed general contracting
Quality Workmanship
Over a decade of renovation experience across Sydney
Home Extensions Cheltenham
Built For The Way You Live
Cheltenham homes are predominantly brick and tile properties from the 1960s through to the 1990s, sitting on generous blocks that typically range from 600 to 900 square metres. Many of these family homes feature original layouts with smaller living areas and dated kitchens that no longer suit how families live today. With land at a premium across the Upper North Shore, extending your existing Cheltenham home is far more practical and cost effective than trying to buy something larger in the area.
We’ve completed numerous extensions throughout Cheltenham and surrounding suburbs like Beecroft and West Pennant Hills, working with the typical brick construction and pitched rooflines common to the area. Our team knows how to match existing brickwork, extend rooflines properly, and create additions that look like they’ve always been part of the home. Whether you need an extra bedroom, a larger kitchen and living zone, or a full second storey addition, we handle the entire process from design and council approvals through to construction and final handover.
Families love Cheltenham for the quality local schools, leafy streets and strong sense of community, which means most homeowners want to stay put rather than move. The median house price in the area continues to climb, making a well designed extension a smart investment that adds real value while giving you the extra space your family needs. Rather than compromise on location or take on a massive mortgage for a bigger home, extending lets you stay in the neighbourhood you love with a home that actually works for your lifestyle.
Our Home Extension Services
Whether you need a single room addition or a full second storey, our licensed team delivers quality extensions on time and within budget.
Ground Floor Extensions
Expand your living space with a ground floor addition tailored to your block and lifestyle.
Second Storey Additions
Add a full second storey to your home and double your living space without moving.
Rear & Side Extensions
Maximise your block with a rear or side extension designed to suit your existing home.
DA & CDC Approval Managed
We handle the full council approval process so you don’t have to deal with the paperwork.
Benefits of a Home Extension
Extending your home is one of the best investments you can make as a Sydney homeowner.
Significant Property Value Increase
A well-built extension adds substantial value to your property at resale
Stay in Your Suburb
Extend instead of moving and keep the location, school zone and community you love
More Space for Your Family
Get the extra bedroom, living area or open plan space your family actually needs
Cheaper Than Buying
In most Sydney suburbs, extending costs far less than buying a larger home
Get Started with Monstructions Today!
Ready to extend your home and create the space your family needs? Contact us today for a free quote and let our home extension specialists bring your vision to life.
Our Extension Process
Initial Consultation
Free consultation to discuss your extension ideas, block constraints and budget.
Design and DA Approval
We design your extension and manage the full council approval process on your behalf.
Site Preparation
Full site preparation, structural work and foundation ready for building.
Construction
Licensed builders construct your extension to the highest standard with all trades managed.
Final Handover
Full inspection and walkthrough before handover to ensure everything is built to specification.
How Much Does a Home Extension Cost in Cheltenham?
Every extension is different. Click the button below to hear back from us within 2 hours!
Single Room Addition
Smart upgrades that make a big impact.- Ground floor extension
- New bedroom, living or study
- Full council approval managed
- Licensed builder end to end
- Fixed price contract
- Tailored to your block and budget
Full Home Extension
Full transformation of your home footprint.- Multi-room ground floor addition
- Kitchen, living, bedroom combinations
- Full structural engineering
- Council DA approval managed
- Fixed price contract
- Tailored to your home and lifestyle
Second Storey Addition
Double your space without moving.- Complete second storey build
- Custom design and architecture
- Full structural and engineering
- Council DA approval managed
- All trades managed end to end
- Fixed price contract
- Fully customised to your vision
Why Cheltenham Homeowners Choose Us For Their Extension?
As home extension specialists across Sydney, we manage everything from design and approvals through to construction and handover.
10+ Years of Extension Experience
Our team has delivered ground floor extensions, second storeys and full home additions across Sydney.
We Manage the Full Process
From DA approval to final handover, we handle every step so you don’t have to.
Trusted by Sydney Homeowners
Homeowners across Sydney trust Monstructions to deliver their extension on time and to budget.
Licensed and Fully Insured
Every extension is built by licensed professionals with full insurance and a fixed price contract.
Don't Take Our Word For It
"I contacted Monstructions to get an idea of a price for doing an extension on my home. Of course I contacted many other people but they were the only ones who came back to me and assisted in giving me an idea of the price. I was so grateful. I wouldn't hesitate in recommending this company as we couldn't be more happy with the team, thank you for your help and support."
Amanda
"We had a plan of what we wanted with our 2nd story + granny flat addition, but also had a budget to meet..the Monstructions team worked hard to make that happen for us. With a few little hiccups along the way from weather delays, the boys kept the job moving as smoothly as possible and the team were amazing in keeping mess to a minimum. Allowing us to stay at home during the reno. 100% highly recommended!"
Angela
"Fantastic! Monstructions did an amazing job on my home extension, all the boys that worked on my house were professional and polite, and their quality of work was second to none. From drawings to completion it was a breeze working with them. They were easy to work with and extremely efficient and professional. Thank you for all the hard work and effort, I will recommend you to everyone I know."
David
Products we use
FAQS
Got a question?
How much does a home extension cost in Cheltenham?
A single room addition in Cheltenham typically starts from around $80,000, while a full ground floor extension with kitchen and living areas usually ranges from $150,000 upwards. Second storey additions generally start from $250,000 depending on size and finishes. We provide a free quote after assessing your property and understanding exactly what you need.
How long does a home extension take in Cheltenham?
Most home extensions in Cheltenham take between 3 to 6 months from DA approval through to final handover, depending on the size and complexity of your project. Council approval times can add another 2 to 3 months to the overall timeline. We’ll give you a clear schedule during the quoting process so you know exactly what to expect.
Do I need council approval for a home extension in Cheltenham?
Most extensions in Cheltenham require either a Development Application or Complying Development Certificate from Hornsby Council. The approval pathway depends on your extension size, setbacks and site conditions. Our team manages the entire approval process for you, working with certifiers and council to get your extension approved as smoothly as possible.
Can you match the existing brick on my Cheltenham home?
Yes, we specialise in matching existing brickwork on older Cheltenham homes, which is critical for making your extension look original. We source the right brick type and work with experienced bricklayers who understand how to blend old and new. The result is an extension that genuinely looks like it’s always been part of your home.
Do you service Cheltenham and surrounding suburbs?
Yes we service Cheltenham and all surrounding suburbs. Call 1300 098 730 to discuss your project.
Monstructions provides home extensions across Upper North Shore, including Berowra Waters, Cherrybrook and all surrounding suburbs.