Home Extensions North Narrabeen

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

North Narrabeen homes were mostly built from the 1960s through to the 1980s, with many original brick and weatherboard places sitting on generous blocks between 550 and 700 square metres. These older homes often have small living areas, dated kitchens and limited connection to the backyard, making them perfect candidates for a well planned extension that opens up the floor plan and brings in natural light.

We’ve completed dozens of extensions throughout North Narrabeen and nearby suburbs like Narrabeen and Elanora Heights, working with families who need more space without leaving their established neighbourhood. Our team knows the local housing stock well and understands how to design additions that respect the character of the area while meeting modern family needs. From single storey rear extensions to full second storey additions, we handle all the design, approvals and construction work.

North Narrabeen attracts families who want to be close to the beach, lagoon and good schools without paying the premium prices of suburbs further south. Property values have climbed steadily over the past decade, and a quality extension can add significant value while giving you the extra bedrooms, living space or home office you need. Most of our clients find that extending their current home costs far less than buying a larger property 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 North Narrabeen?

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

Why North Narrabeen 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 North Narrabeen?

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 around $250,000 depending on size and finishes. We provide a free quote after discussing your specific needs and viewing your property.

How long does a home extension take in North Narrabeen?

Most extensions take between 3 to 6 months from DA approval through to final handover, depending on the scope and complexity of the work. Single storey additions are generally quicker, while second storey builds take longer due to structural requirements. We provide a detailed timeline as part of your project proposal.

Do I need council approval for a home extension in North Narrabeen?

Most extensions in North Narrabeen require either Development Application approval or a Complying Development Certificate from Northern Beaches Council. The specific approval pathway depends on your extension size, setbacks and local planning controls. We manage the full approval process for you, including all documentation and liaison with council or certifiers.

Can I extend up on a sloping block?

Yes, many North Narrabeen properties sit on sloping blocks that are well suited to second storey additions or split level designs. We assess your site during the initial consultation and recommend the best approach based on your land contour, existing foundation and council height limits. Sloping blocks often provide opportunities for additional storage or underfloor areas too.

Do you service North Narrabeen and surrounding suburbs?

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

Monstructions provides home extensions across Northern Beaches, including North Manly, Oxford Falls and all surrounding suburbs.