Home Extensions Clontarf

If you’re looking for home extensions Clontarf homeowners trust, you’ve found the right team. Monstructions handles everything from initial design through to final handover, proudly serving Clontarf, Manly Vale, Balgowlah 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 Clontarf, expertly designing and building additions that suit the homes and families throughout the Northern Beaches area. We’re proud to serve homeowners throughout Clontarf, Seaforth, Balgowlah Heights and surrounds 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 Clontarf
Built For The Way You Live

Clontarf is mostly made up of brick and weatherboard homes from the 1950s through to the 1980s, sitting on generous blocks between 600 and 900 square metres. Many of these homes still have their original footprint and floorplan, which means cramped kitchens, small living areas and limited outdoor connection. An extension is often the smartest way to update these solid homes for modern family life without the cost and stress of buying elsewhere.

We’ve completed extensions across Clontarf and surrounding Northern Beaches suburbs, from single storey rear additions to full second storey builds. Most of our work here involves opening up the back of the home, adding a modern kitchen and living area that flows to the yard, plus extra bedrooms or a parent’s retreat upstairs. Every project is handled by our licensed team from the first design meeting right through to council approval and final construction.

Clontarf families love the waterfront location, good schools and quiet streets, but many homes just don’t have the space modern life demands. The property market here is strong, and a well designed extension can add serious value while letting you stay in the suburb you already love. Rather than upsizing and paying stamp duty on a new property, most homeowners find extending their current place makes better financial sense.

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 Clontarf?

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

Why Clontarf 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 Clontarf?

A single room addition generally starts from around $80,000, while a full ground floor extension typically runs from $150,000 depending on size and finishes. Second storey additions usually begin at $250,000 for a couple of bedrooms and a bathroom. We provide a free quote after assessing your home and understanding exactly what you need.

How long does a home extension take in Clontarf?

Most extensions take between three and six months from council approval through to final handover, depending on the scope of work. The design and approval phase usually adds another two to three months before construction starts. We’ll give you a clear timeline during the quoting process so you know exactly what to expect.

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

Most home extensions in Clontarf require either a Development Application or Complying Development Certificate from Northern Beaches Council. Some very minor additions might qualify for exempt development, but that’s rare for anything meaningful. We handle the full approval process for you, including all documentation, plans and council liaison.

Can I add a second storey to my Clontarf home?

Yes, most single storey homes in Clontarf can support a second storey addition, though it depends on your existing foundation and structure. We arrange a structural engineer to assess your home early in the design phase. Many of our Clontarf projects involve adding a second level for extra bedrooms and better water views.

Do you service Clontarf and surrounding suburbs?

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

Monstructions provides home extensions across Northern Beaches, including Clareville, Coasters Retreat and all surrounding suburbs.