Home Extensions Cremorne
If you’re looking for home extensions Cremorne homeowners trust, you’ve found the right team. Monstructions handles everything from initial design through to final handover, proudly serving Cremorne, Neutral Bay, Mosman and all neighbouring suburbs across the North Shore area.
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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 Cremorne, expertly designing and building additions that suit the homes and families throughout the North Shore area. We’re proud to serve homeowners throughout Cremorne, Neutral Bay and Mosman with our licensed team managing everything from initial design through to final handover.
Home Extensions Cremorne
Built For The Way You Live
Cremorne’s housing stock includes a mix of Federation and California bungalows from the early 1900s, post war brick homes and some updated modern residences. Most blocks sit between 400 and 600 square metres, which means you’re often working with limited space. An extension makes more sense than moving, especially when you’re already in a great location close to the water and with good access to the city.
We’ve completed extensions across Cremorne and neighbouring suburbs like Neutral Bay and Mosman, working with the area’s older housing stock and local council requirements. Our team understands how to add space to period homes without losing their character, whether that’s a rear ground floor addition or going up with a second storey. Every project is managed in house from design through to the final build.
Cremorne attracts families who want a tight knit community feel with harbour views and city access. Property values here are strong, and a well designed extension can add significant value while giving you the space your family needs. Rather than entering the competitive property market, extending your current home lets you stay in an area where you’re already settled.
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 Cremorne?
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 Cremorne 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."
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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!"
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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."
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David
Products we use
FAQS
Got a question?
How much does a home extension cost in Cremorne?
A single room addition typically starts from $80,000, while a full ground floor extension generally begins around $150,000. Second storey additions usually start from $250,000 depending on size and finishes. We provide a free detailed quote after assessing your property and discussing what you need.
How long does a home extension take in Cremorne?
Most home extensions take between three to six months from DA approval through to final handover, depending on the size and complexity of your project. Council approval times can vary, but we manage that entire process for you. We’ll give you a clear timeline once we understand the scope of your extension.
Do I need council approval for a home extension in Cremorne?
Most extensions in NSW require either a Development Application or Complying Development Certificate from North Sydney Council. The approval you need depends on the size of your extension and what’s permitted under local planning rules. Our team manages the full approval process including all documentation and council liaison.
Can you extend a Federation home in Cremorne?
Yes, we regularly work with Federation and California bungalows throughout Cremorne and know how to extend these homes sympathetically. The key is respecting the original architecture while creating modern, functional living spaces. We handle all heritage considerations and ensure any addition complements your home’s character.
Do you service Cremorne and surrounding suburbs?
Yes we service Cremorne and all surrounding suburbs. Call 1300 098 730 to discuss your project.
Monstructions provides home extensions across North Shore, including Chatswood West, Cremorne Point and all surrounding suburbs.


