Home Extensions Mortdale
If you’re looking for home extensions Mortdale homeowners trust, you’ve found the right team. Monstructions handles everything from initial design through to final handover, proudly serving Mortdale, Penshurst, Oatley and all neighbouring suburbs across the St George area.
10+ years experience guarantee
10 years guarantee
100% customer satisfaction
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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 Mortdale, expertly designing and building additions that suit the homes and families throughout the St George area. We’re proud to serve homeowners throughout Mortdale, Hurstville and Peakhurst 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 Mortdale
Built For The Way You Live
Mortdale is full of post war brick homes and weatherboard cottages from the 1950s and 60s, most sitting on decent sized blocks between 500 and 650 square metres. These homes often have cramped kitchens, small living areas and only one bathroom, making them perfect candidates for a well planned extension. The good block sizes mean there’s real potential to add space without losing your backyard.
We’ve completed dozens of extensions throughout Mortdale and surrounding suburbs like Penshurst and Oatley, working with the character of the existing homes while creating modern, practical spaces. Our team knows the local housing stock inside out, from the solid brick construction to the typical floor plans that were popular in the area. Every project is managed by our licensed builders from concept through to completion.
Mortdale offers great value compared to suburbs closer to the city, and families are choosing to extend rather than move because of the excellent schools and train access to the city. A quality extension can add serious value to your property while giving you the extra bedroom, better kitchen or second living area your family actually needs. With the Georges River and parklands nearby, it’s an area where people want to stay long term.
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 Mortdale?
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 Mortdale 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 Mortdale?
A single room addition typically starts from $80,000, while a full ground floor extension with kitchen and living areas starts from $150,000. Second storey additions generally begin at $250,000 depending on size and finishes. We provide a detailed, obligation free quote after discussing your specific needs and inspecting your property.
How long does a home extension take in Mortdale?
Most home extensions take between 3 to 6 months from council approval through to final handover, depending on the scope of work. Smaller single room additions are usually quicker, while larger two storey projects take longer. We’ll give you a clear timeline during the planning phase and keep you updated throughout the build.
Do I need council approval for a home extension in Mortdale?
Most extensions in Mortdale require either a Development Application or Complying Development Certificate from Georges River Council. Some minor additions may qualify for exempt development, but this depends on size, setbacks and other planning controls. Our team manages the entire approval process for you, working with certifiers and council to get your project approved.
Can you extend a brick home in Mortdale?
Absolutely. The majority of homes in Mortdale are solid brick construction from the post war period, and they’re ideal for extensions. We regularly extend these homes by matching the existing brickwork or using complementary materials that blend with the original structure. The solid foundations on most of these properties make them perfect for ground floor additions.
Do you service Mortdale and surrounding suburbs?
Yes we service Mortdale and all surrounding suburbs. Call 1300 098 730 to discuss your project.