Home Extensions Forestville

If you’re looking for home extensions Forestville homeowners trust, you’ve found the right team. Monstructions handles everything from initial design through to final handover, proudly serving Forestville, Killarney Heights, Frenchs Forest and all neighbouring suburbs across the Northern Beaches area.

10+ years experience guarantee

10 years guarantee

100% customer satisfaction

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 Forestville, expertly designing and building additions that suit the homes and families throughout the Northern Beaches area. We’re proud to serve homeowners throughout Forestville, Killarney Heights and Belrose 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 Forestville
Built For The Way You Live

Forestville is made up largely of brick and tile homes built from the 1960s through to the 1980s, sitting on decent sized blocks that typically range from 600 to 800 square metres. These solid family homes were built in an era where living spaces were smaller and more compartmentalised, which is why so many of our clients come to us wanting to open up their floor plans and add space for modern family life. The good block sizes in Forestville give you plenty of options for extending without losing your backyard.

We’ve completed dozens of extensions throughout Forestville and the surrounding suburbs like Killarney Heights and Frenchs Forest, working with families who need more room but love their location and community connections. Most of our Forestville projects involve opening up the back of the home to create better indoor outdoor flow, adding a second storey for extra bedrooms, or converting garages into usable living space. Our team knows the local building requirements and works with council to get your project approved without the usual headaches.

Forestville sits in a great pocket of the Northern Beaches with good schools, parks and shopping all close by, which means families want to stay put rather than move. Property values here have held strong, and a well designed extension can add significant value while giving you the home you actually need. We help Forestville homeowners create functional, attractive spaces that work for their family today and add real value when it’s time to sell down the track.

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 Forestville?

Every extension is different. Click the button below to hear back from us within 2 hours!

Why Forestville 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

Manly

"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

Dee Why

"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

Narrabeen

Products we use

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FAQS

Got a question?

How much does a home extension cost in Forestville?

A single room addition in Forestville typically starts from around $80,000, while a full ground floor extension starts from $150,000 depending on size and finishes. Second storey additions generally start from $250,000 due to the structural work involved. We provide a free, detailed quote after assessing your home and discussing what you need.

How long does a home extension take in Forestville?

Most home extensions in Forestville take between 3 to 6 months from DA approval through to final handover, depending on the size and complexity of the build. Smaller single room additions can sometimes be completed faster, while second storey builds or major renovations take longer. We give you a realistic timeline upfront and keep you informed throughout the entire build.

Do I need council approval for a home extension in Forestville?

Most extensions in Forestville require either a Development Application or Complying Development Certificate through Northern Beaches Council. The approval pathway depends on the size and type of extension you’re planning. Our team manages the entire approval process for you, working with certifiers and council to get your project approved.

Can I add a second storey to my Forestville home?

Yes, most single storey homes in Forestville are suitable for a second storey addition, especially the brick homes from the 60s to 80s that make up much of the suburb. We assess your existing structure to confirm it can support the additional load or design the necessary structural upgrades. A second storey is often the best way to add space while keeping your backyard intact.

Do you service Forestville and surrounding suburbs?

Yes we service Forestville and all surrounding suburbs. Call 1300 098 730 to discuss your project.

Monstructions provides home extensions across Northern Beaches, including Fairlight, Frenchs Forest and all surrounding suburbs.