Home Extensions Hills, Parramatta & Penrith
If you’re looking for home extensions Hills, Parramatta & Penrith homeowners trust, you’ve found the right team. Monstructions handles everything from initial design through to final handover, proudly serving Hills, Parramatta & Penrith and all neighbouring suburbs.
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 Hills, Parramatta & Penrith, expertly designing and building additions that suit the homes and families throughout the Hills, Parramatta & Penrith area. We’re proud to serve homeowners throughout Hills, Parramatta & Penrith and surrounds with our licensed team managing everything from initial design through to final handover.
Home Extensions Hills, Parramatta & Penrith
Built For The Way You Live
From the 1970s brick homes on quarter acre blocks in Castle Hill and Baulkham Hills through to the older weatherboard cottages in North Parramatta and post-war fibros in Penrith, this stretch of western Sydney offers solid bones on decent sized blocks. Many homes sit on 600 to 800 square metre blocks, giving you real room to extend without compromising your backyard. The original floor plans feel cramped by today’s standards, with small kitchens, closed off living areas and limited storage that no longer work for modern families.
We’ve completed extensions right across the region, from second storey additions in Kellyville and Winston Hills to rear ground floor extensions in Westmead and Wentworthville. Our work extends through Toongabbie, Seven Hills, Blacktown, Glenmore Park and Kingswood where we’ve helped families add the extra bedrooms, open plan living spaces and updated bathrooms they desperately need. Whether you’re in the newer pockets around Rouse Hill or the established streets of Ermington and Epping, we understand what works for homes in this part of Sydney.
Property values across Hills, Parramatta & Penrith have climbed steadily as families choose to stay local rather than move further out, making a well planned extension a smart investment. With the new Metro stations, upgraded hospitals and schools drawing more people west, adding liveable space to your existing home beats the upheaval and expense of selling and buying. A quality extension can add $150,000 to $300,000 in value while giving you the home you actually want to live in.
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 Hills, Parramatta & Penrith?
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 Hills, Parramatta & Penrith 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 Hills, Parramatta & Penrith?
A single room addition typically starts from $80,000, while a full ground floor extension with open plan kitchen and living usually runs from $150,000. Second storey additions start around $250,000 depending on size and finishes. We provide a free detailed quote after assessing your property and understanding exactly what you need.
How long does a home extension take in Hills, Parramatta & Penrith?
Most extensions take between 3 to 6 months from council approval through to completion, depending on the size and complexity of your project. A single storey rear extension is usually quicker than a full second storey addition. We’ll give you a realistic timeline during the quoting process so you can plan accordingly.
Do I need council approval for a home extension in Hills, Parramatta & Penrith?
Most extensions in NSW require either Development Approval (DA) or a Complying Development Certificate (CDC) from council before you can start building. The Hills Shire, Parramatta and Penrith councils each have their own planning requirements we know well. We manage the full approval process for you, including plans, documentation and liaising with council or certifiers.
Can I extend an older fibro or weatherboard home?
Absolutely, and we do it regularly across Parramatta and Penrith where older fibro and weatherboard homes are common. The key is assessing the existing structure first to ensure it can support the new extension, and sometimes we’ll need to do minor strengthening work to the original frame. These older homes often have the best blocks and locations, making them perfect candidates for a well designed extension.
Do you service all areas of Hills, Parramatta & Penrith?
Yes we service all suburbs across Hills, Parramatta & Penrith. Call 1300 098 730 to discuss your project.
Suburbs We Service in Hills, Parramatta & Penrith
Click your area to learn more


