Home Extensions Kensington
If you’re looking for home extensions Kensington homeowners trust, you’ve found the right team. Monstructions handles everything from initial design through to final handover, proudly serving Kensington, Kingsford, Randwick and all neighbouring suburbs across the Eastern Suburbs 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 Kensington, expertly designing and building additions that suit the homes and families throughout the Eastern Suburbs area. We’re proud to serve homeowners throughout Kensington, Kingsford and Randwick 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 Kensington
Built For The Way You Live
Kensington homes are mostly Federation and interwar cottages and bungalows on compact blocks, typically between 250 and 400 square metres. Many properties feature narrow frontages with long backyards that make them perfect candidates for rear or side extensions. With original floorplans offering limited space and outdated layouts, adding a well designed extension makes far more sense than the upheaval and expense of moving.
We’ve completed dozens of extensions throughout Kensington and nearby suburbs like Kingsford and Randwick, working with the character of older homes while delivering modern, functional living spaces. Our team understands the planning requirements in Randwick Council and how to design additions that respect the streetscape while maximising your usable space. Every project is managed by licensed builders who live and work across the Eastern Suburbs.
Kensington’s proximity to UNSW, excellent schools and quick access to the city makes it a tightly held suburb where families want to stay long term. Property prices continue to climb, and a quality extension can add significantly more value than the build cost while giving you the extra room your family needs. Rather than searching for a bigger home in your price range, extending your current property lets you stay in the community and school zones you love.
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 Kensington?
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 Kensington 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 Kensington?
A single room addition typically starts from $80,000, while a full ground floor extension with kitchen and living areas starts from $150,000. Second storey additions generally begin around $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 Kensington?
Most extensions take between three and six months from council approval through to final handover, depending on the scope and complexity of your project. The DA approval process with Randwick Council typically adds another two to three months before construction starts. We keep you informed at every stage and work efficiently to minimise disruption to your daily life.
Do I need council approval for a home extension in Kensington?
Most home extensions in Kensington require either a Development Application or Complying Development Certificate through Randwick Council. The approval pathway depends on your property’s zoning, heritage considerations and the size of your proposed extension. Our team manages the full approval process including plans, documentation and liaison with council or certifiers.
Can I extend a Federation cottage in Kensington?
Absolutely, and we do it regularly throughout the suburb. The key is designing an extension that respects the original character at the front while creating modern, light filled spaces at the rear. We’re experienced in working with period homes and understand how to blend old and new so the addition feels like it belongs.
Do you service Kensington and surrounding suburbs?
Yes we service Kensington and all surrounding suburbs. Call 1300 098 730 to discuss your project.
Monstructions provides home extensions across Eastern Suburbs, including Edgecliff, Kingsford and all surrounding suburbs.