Home Extensions Oatlands
If you’re looking for home extensions Oatlands homeowners trust, you’ve found the right team. Monstructions handles everything from initial design through to final handover, proudly serving Oatlands, Carlingford, Dundas and all neighbouring suburbs across the Hills, Parramatta & Penrith area.
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 Oatlands, expertly designing and building additions that suit the homes and families throughout the Hills, Parramatta & Penrith area. We’re proud to serve homeowners throughout Oatlands, Carlingford and Dundas with our licensed team managing everything from initial design through to final handover.
Home Extensions Oatlands
Built For The Way You Live
Oatlands is packed with solid brick homes from the 1960s through to the 1990s, mostly sitting on decent blocks between 550 and 750 square metres. These homes were built for smaller families and often feel cramped once you’ve got kids or need a proper home office. Rather than selling up and losing the quiet streets and good schools, most families are choosing to extend what they’ve already got.
We’ve completed dozens of extensions across Oatlands and nearby suburbs like Carlingford and Dundas Valley, working with everything from single level brick homes to split level designs. Our team knows the local council requirements inside out and we’re used to working on the sloping blocks common around here. Most of our Oatlands projects involve rear ground floor extensions with kitchen and living upgrades, though we’re seeing more second storey additions as land prices keep climbing.
Oatlands families love the proximity to Parramatta CBD and the quality local schools, which means property values hold strong even when the broader market softens. A well planned extension typically adds $150,000 to $300,000 in value while giving you the extra space your family actually needs. With median house prices around the $2 million mark, extending makes far more financial sense than buying something bigger in the same area.
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 Oatlands?
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 Oatlands 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 Oatlands?
A single room addition in Oatlands typically starts from $80,000, while a full ground floor extension with kitchen and living areas usually ranges from $150,000 to $250,000. Second storey additions generally start around $250,000 depending on the 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 Oatlands?
Most home extensions in Oatlands take between 3 to 6 months from council approval through to final handover. The timeline depends on the size and complexity of your project, with single room additions on the shorter end and full second storeys taking closer to 6 months. We’ll give you a clear timeline upfront so you know exactly what to expect.
Do I need council approval for a home extension in Oatlands?
Most extensions in Oatlands require either a Development Application or Complying Development Certificate through The Hills Shire Council. The approval pathway depends on your property, the size of the extension and setbacks from boundaries. Our team manages the entire approval process from start to finish, including all architectural plans and engineering documentation.
Can you extend a split level home in Oatlands?
Absolutely, we work with split level homes regularly in Oatlands and the surrounding area. These designs are common on the sloping blocks throughout the suburb and actually offer good flexibility for extensions. We’ll assess your floor levels and design an addition that works with your existing layout rather than against it.
Do you service Oatlands and surrounding suburbs?
Yes we service Oatlands and all surrounding suburbs. Call 1300 098 730 to discuss your project.
Monstructions provides home extensions across Hills, Parramatta & Penrith, including Northmead, Old Toongabbie and all surrounding suburbs.


