Home Extensions Doonside
If you’re looking for home extensions Doonside homeowners trust, you’ve found the right team. Monstructions handles everything from initial design through to final handover, proudly serving Doonside, Woodcroft, Rooty Hill and all neighbouring suburbs across the Blacktown 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 Doonside, expertly designing and building additions that suit the homes and families throughout the Blacktown area. We’re proud to serve homeowners throughout Doonside, Woodcroft and Rooty Hill with our licensed team managing everything from initial design through to final handover.
Home Extensions Doonside
Built For The Way You Live
Doonside is dominated by brick homes built from the 1970s through to the 1990s, typically sitting on generous 550 to 700 square metre blocks. These homes were built for their time, but modern families need more space, better layouts and updated living areas. An extension makes far more sense than selling up, especially when you’ve got the land to work with.
We’ve completed extensions across Doonside and neighbouring suburbs like Woodcroft and Rooty Hill, working with the typical housing stock in the area. Our team knows how to work with older brick homes, from opening up cramped floor plans to adding second storeys where the foundations allow. Every extension is designed to suit how families actually live today.
Doonside offers affordable family living with good school access and transport links to Parramatta and the city. Property values have climbed steadily, and homeowners are choosing to extend rather than move to pricier suburbs. A well designed extension can add significant value while giving you the space your family needs without leaving a location that works.
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 Doonside?
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 Doonside 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 Doonside?
A single room addition typically starts from $80,000, while a full ground floor extension usually begins around $150,000. Second storey additions generally start from $250,000 depending on your existing structure and what you need. We provide a detailed free quote after assessing your home and understanding your requirements.
How long does a home extension take in Doonside?
Most home extensions take between 3 to 6 months from development approval through to final handover, depending on the size and complexity of the work. Smaller single room additions can be quicker, while second storey builds typically take longer. We’ll give you a realistic timeline during the quoting process based on your specific project.
Do I need council approval for a home extension in Doonside?
Most home extensions in NSW require either a Development Application or Complying Development Certificate through Blacktown Council. The approval pathway depends on your extension size, setbacks and local planning rules. Our team manages the entire approval process for you, including liaising with council and certifiers to keep your project moving.
Can I add a second storey to my brick home?
Many brick homes in Doonside were built with strip or slab foundations that can support a second storey, but each property needs a structural assessment first. We arrange engineering reports to confirm your home’s suitability and design the upper level to work with your existing structure. It’s often more cost effective than moving to a bigger home.
Do you service Doonside and surrounding suburbs?
Yes we service Doonside and all surrounding suburbs. Call 1300 098 730 to discuss your project.
Monstructions provides home extensions across Blacktown, including Dharruk, Eastern Creek and all surrounding suburbs.


