Home Extensions Chatswood
If you’re looking for home extensions Chatswood homeowners trust, you’ve found the right team. Monstructions handles everything from initial design through to final handover, proudly serving Chatswood, Willoughby, Roseville and all neighbouring suburbs across the North Shore area.
10+ years experience guarantee
10 years guarantee
100% customer satisfaction
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 HOME READY FOR AN EXTENSION?
Monstructions specialises in home extensions Chatswood, expertly designing and building additions that suit the homes and families throughout the North Shore area. We’re proud to serve homeowners throughout Chatswood, Artarmon, Lane Cove 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 Chatswood
Built For The Way You Live
Chatswood’s housing stock includes plenty of post war brick homes and 1970s dwellings on decent sized blocks, typically around 550 to 700 square metres. Many of these older homes have good bones but lack the open plan living spaces and extra bedrooms that modern families need. An extension makes far more sense than uprooting to a new suburb when you’re already in one of Sydney’s best connected areas.
We’ve completed dozens of extensions across Chatswood and nearby suburbs like Willoughby and Roseville, from single storey rear additions to full second storey builds. Most of our clients want better kitchen and living areas that connect to their backyards, plus an extra bedroom or two as their families grow. Our team knows the local council requirements and works with the sloping blocks common throughout the area.
Chatswood’s proximity to the city, excellent schools and shopping precinct means property values hold strong and continue to climb. Adding a quality extension can boost your home’s value by $200,000 to $400,000 while giving you the space you actually need right now. For families who want to stay in the area long term, extending beats selling and paying stamp duty somewhere else.
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 Chatswood?
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 Chatswood 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 Chatswood?
A single room addition typically starts from $80,000, while a full ground floor extension begins around $150,000. Second storey additions usually start from $250,000 depending on size and finishes. We provide a free, detailed quote after visiting your property and understanding exactly what you need.
How long does a home extension take in Chatswood?
Most extensions take between 3 to 6 months from DA approval through to final handover, depending on the scope of work. A single storey addition is usually quicker than a full second storey build. We’ll give you a clear timeline during the design phase so you know exactly what to expect.
Do I need council approval for a home extension in Chatswood?
Most extensions in Chatswood require either a Development Application or Complying Development Certificate through Willoughby Council. Some smaller projects may qualify as exempt development, but this is less common for meaningful extensions. Our team manages the full approval process and has extensive experience dealing with local council requirements.
Can you extend homes on sloping blocks in Chatswood?
Absolutely. Many Chatswood properties sit on sloping sites and we’ve built plenty of extensions that work with the natural fall of the land. The key is proper engineering and design that accounts for the slope while maximising your living space. We often use the gradient to create split level designs or undercroft storage areas.
Do you service Chatswood and surrounding suburbs?
Yes we service Chatswood and all surrounding suburbs. Call 1300 098 730 to discuss your project.
Monstructions provides home extensions across North Shore, including Castlecrag, Chatswood West and all surrounding suburbs.