Home Extensions Holsworthy
If you’re looking for home extensions Holsworthy homeowners trust, you’ve found the right team. Monstructions handles everything from initial design through to final handover, proudly serving Holsworthy, Wattle Grove, Hammondville and all neighbouring suburbs across the South West Sydney 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 Holsworthy, expertly designing and building additions that suit the homes and families throughout the South West Sydney area. We’re proud to serve homeowners throughout Holsworthy, Moorebank and Voyager Point with our licensed team managing everything from initial design through to final handover.
Home Extensions Holsworthy
Built For The Way You Live
Holsworthy homes are mostly single storey brick and tile builds from the 1970s and 1980s, sitting on generous blocks that often exceed 600 square metres. Many properties here are close to the army base and offer good potential for extensions, whether you need extra bedrooms, a larger living area, or a second storey to capture views and maximise your land. The established nature of the suburb means most homes were designed for smaller families, so adding space makes perfect sense for modern households.
We’ve completed plenty of extension projects throughout Holsworthy and nearby suburbs like Pleasure Point and East Hills, working with families who need more room without the hassle of moving. Our team knows the local building conditions well, including the clay soils common in this part of South West Sydney that require proper footings and engineering. Every project is managed in house, from concept plans right through to the final clean up.
Holsworthy offers affordable family living with good access to the M5 and surrounding employment hubs, which is why many homeowners are choosing to extend rather than sell. The property market here rewards well executed extensions, particularly second storey additions that make the most of your block size. Adding functional space to your existing home typically costs less than buying bigger and lets you stay in a suburb you already know and 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 Holsworthy?
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 Holsworthy 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 Holsworthy?
A single room addition in Holsworthy typically starts from around $80,000, while a full ground floor extension with kitchen and living areas usually begins at $150,000. Second storey additions generally start from $250,000 depending on size and finishes. We provide a free, no obligation quote after assessing your property and discussing your specific needs.
How long does a home extension take in Holsworthy?
Most home extensions in Holsworthy take between 3 to 6 months from DA approval through to final handover, depending on the scope of work. Smaller single room additions can be quicker, while larger second storey projects may take closer to 6 months. We provide a detailed timeline during the quote process so you know exactly what to expect.
Do I need council approval for a home extension in Holsworthy?
Most extensions in Holsworthy require either a Development Application or Complying Development Certificate from Liverpool Council. Some minor additions may qualify for exempt development, but we assess this during the initial consultation. Our team manages the entire approval process for you, including all documentation, plans, and council liaison.
Can I add a second storey to my Holsworthy home?
Yes, most single storey homes in Holsworthy are suitable for a second storey addition, subject to council height limits and setback requirements. We assess your existing foundation and structure to determine if any additional support is needed. A second storey is an excellent way to maximise your block without losing valuable backyard space.
Do you service Holsworthy and surrounding suburbs?
Yes we service Holsworthy and all surrounding suburbs. Call 1300 098 730 to discuss your project.
Monstructions provides home extensions across South West Sydney, including Hinchinbrook, Horningsea Park and all surrounding suburbs.


