Home Extensions Gundamaian
If you’re looking for home extensions Gundamaian homeowners trust, you’ve found the right team. Monstructions handles everything from initial design through to final handover, proudly serving Gundamaian, Loftus, Engadine and all neighbouring suburbs across the Sutherland Shire 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 Gundamaian, expertly designing and building additions that suit the homes and families throughout the Sutherland Shire area. We’re proud to serve homeowners throughout Gundamaian, Heathcote, Woronora and surrounds with our licensed team managing everything from initial design through to final handover.
Home Extensions Gundamaian
Built For The Way You Live
Gundamaian is home to a mix of brick and fibro properties built predominantly from the 1960s through to the 1980s, sitting on generous blocks that back onto bushland and national park. These original homes often feature modest floor plans that no longer suit growing families or modern living requirements. The large block sizes and established nature of the area make extending your existing home a practical and cost effective option compared to buying elsewhere.
We’ve completed numerous extensions throughout Gundamaian and neighbouring suburbs like Loftus and Engadine, working with the natural slope of many properties to add extra living space. Our team understands the local building considerations including bushfire regulations given the proximity to Royal National Park. Whether you need an extra bedroom, expanded living areas or a second storey to capture treetop views, we handle the entire process from concept to completion.
Many families move to Gundamaian for the bushland setting, large blocks and tight knit community feel, making it hard to leave once you’re established. Property in the area holds strong value due to the limited housing stock and natural surrounds. Adding a well designed extension allows you to stay in the area you love while creating a home that actually works for your family, often at a fraction of the cost of upgrading to a larger property.
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 Gundamaian?
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 Gundamaian 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 Gundamaian?
A single room addition typically starts from $80,000, while a full ground floor extension begins around $150,000. Second storey additions generally start from $250,000 depending on size and finishes. We provide a free detailed quote after assessing your property and discussing your specific requirements.
How long does a home extension take in Gundamaian?
Most home extensions take between 3 to 6 months from DA approval through to final handover. The timeline depends on the scope of work, weather conditions and any site specific factors like bushfire zone requirements. We provide a clear schedule during the planning phase so you know exactly what to expect.
Do I need council approval for a home extension in Gundamaian?
Most extensions in Gundamaian require either Development Approval or a Complying Development Certificate from Sutherland Shire Council. Some smaller additions may qualify for exempt development but this depends on your specific property and plans. Our team manages the full approval process including all documentation, surveys and liaison with council or certifiers.
Can you extend homes near bushland and national park?
Absolutely, we regularly work on properties adjacent to Royal National Park and bushland areas throughout Gundamaian. We’re well versed in bushfire attack level requirements and design extensions that meet all necessary regulations while maximising your living space. Our experience with sloping bush blocks means we understand the unique challenges and opportunities your property presents.
Do you service Gundamaian and surrounding suburbs?
Yes we service Gundamaian and all surrounding suburbs. Call 1300 098 730 to discuss your project.
Monstructions provides home extensions across Sutherland Shire, including Greenhills Beach, Gymea and all surrounding suburbs.


