Home Extensions Sylvania Heights
If you’re looking for home extensions Sylvania Heights homeowners trust, you’ve found the right team. Monstructions handles everything from initial design through to final handover, proudly serving Sylvania Heights, Sylvania, Gymea Bay 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 Sylvania Heights, expertly designing and building additions that suit the homes and families throughout the Sutherland Shire area. We’re proud to serve homeowners throughout Sylvania Heights, Sylvania and Gymea Bay and surrounds with our licensed team managing everything from initial design through to final handover.
Home Extensions Sylvania Heights
Built For The Way You Live
Sylvania Heights is home to plenty of brick and tile houses from the 1960s and 70s, typically sitting on generous blocks ranging from 600 to 800 square metres. Many of these original homes were built with modest floor plans that no longer suit modern family living. Rather than sell up and move, most homeowners find extending makes far more sense both financially and practically.
We’ve completed extensions right across Sylvania Heights and nearby suburbs like Sylvania and Miranda, working with families who want more space without leaving their established neighbourhood. Our work ranges from single storey rear additions to create open plan living areas, through to second storey builds that take advantage of leafy outlooks. Every project is managed by our licensed team from concept design through to final inspection.
The tightly held nature of Sylvania Heights means quality homes rarely come on the market, and when they do, they command strong prices. Adding a well designed extension allows you to create the home you want while staying in a suburb known for good schools, quiet streets and easy access to both the Georges River and Port Hacking. A thoughtful extension can add $200,000 or more to your property value while giving your family the space you need today.
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 Sylvania Heights?
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 Sylvania Heights 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 Sylvania Heights?
A single room addition typically starts from $80,000, while a full ground floor extension starts from $150,000. Second storey additions generally begin around $250,000 depending on size and specifications. We provide a free detailed quote after assessing your home and understanding exactly what you need.
How long does a home extension take in Sylvania Heights?
Most extensions take between 3 to 6 months from council approval through to final handover, depending on the scope of work. A single room addition might be complete in 3 months, while a large second storey build could take closer to 6 months. We’ll give you a clear timeline once we’ve finalised your design.
Do I need council approval for a home extension in Sylvania Heights?
Most extensions require either a Development Application or Complying Development Certificate from Sutherland Shire Council. The approval pathway depends on your project size, setbacks and site constraints. Our team manages the full approval process for you, including plans, engineering and all council submissions.
Can you extend on sloping blocks in Sylvania Heights?
Absolutely. Many homes in Sylvania Heights sit on sloping blocks, particularly those closer to the Georges River. We regularly design extensions that work with the fall of the land, using split levels or undercroft areas where it makes sense. Our team assesses your site carefully to create a design that suits your block and budget.
Do you service Sylvania Heights and surrounding suburbs?
Yes we service Sylvania Heights and all surrounding suburbs. Call 1300 098 730 to discuss your project.
Monstructions provides home extensions across Sutherland Shire, including Sylvania, Sylvania Waters and all surrounding suburbs.


