Home Extensions Londonderry
If you’re looking for home extensions Londonderry homeowners trust, you’ve found the right team. Monstructions handles everything from initial design through to final handover, proudly serving Londonderry, Berkshire Park, Shanes Park and all neighbouring suburbs across the Hills, Parramatta & Penrith 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 Londonderry, expertly designing and building additions that suit the homes and families throughout the Hills, Parramatta & Penrith area. We’re proud to serve homeowners throughout Londonderry, Ropes Crossing and Marsden Park 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 Londonderry
Built For The Way You Live
Londonderry’s housing stock includes a good mix of older fibro and brick homes on generous blocks, plus newer estates with modern builds on smaller parcels. Many of the older homes sit on quarter acre or larger blocks, giving you plenty of room to extend without eating up your yard. An extension makes more sense than moving, especially when you’ve already got the land and location sorted.
We’ve completed extensions across Londonderry and nearby suburbs like Berkshire Park and Shanes Park, working with everything from original 1970s brick homes to newer builds that need an extra bedroom or living space. Every project gets the same level of care, whether it’s a single storey addition or a full ground floor extension. Our team knows the local building conditions and council requirements inside out.
Londonderry offers affordable living on larger blocks compared to suburbs closer to the city, which is why families move here in the first place. Property values continue to climb as infrastructure improves and the area grows, making a well planned extension a solid investment. Adding space to your existing home beats the cost and hassle of selling and buying elsewhere, especially when you’ve got established gardens and good neighbours.
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 Londonderry?
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 Londonderry 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 Londonderry?
A single room addition typically starts from $80,000, while a full ground floor extension runs from $150,000 depending on size and finishes. Second storey additions generally start around $250,000. We provide a free quote after assessing your property and understanding what you need.
How long does a home extension take in Londonderry?
Most extensions take between 3 to 6 months from development approval through to handover, depending on the scope and complexity of your project. Smaller single room additions can be quicker, while larger or double storey builds take longer. We give you a clear timeline upfront so you know what to expect.
Do I need council approval for a home extension in Londonderry?
Most home extensions in Londonderry require either a Development Application or Complying Development Certificate through Penrith City Council. Some minor works may qualify for exemptions, but anything substantial needs proper approval. We manage the full approval process for you, including all drawings and documentation.
Can you extend older fibro homes in Londonderry?
Absolutely, we work with older fibro and brick homes all the time in Londonderry and surrounding areas. The key is getting the foundations right and ensuring the new work ties in properly with the existing structure. We’ll assess your home and recommend the best approach for a solid, long lasting extension.
Do you service Londonderry and surrounding suburbs?
Yes we service Londonderry and all surrounding suburbs. Call 1300 098 730 to discuss your project.
Monstructions provides home extensions across Hills, Parramatta & Penrith, including Llandilo, Mount Vernon and all surrounding suburbs.