Home Extensions Mona Vale

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

Mona Vale homes range from 1960s and 70s brick family homes on generous blocks to newer builds closer to the beach. Many properties sit on 600 to 800 square metre blocks, giving you real scope to add a ground floor extension or go up with a second storey. Extending your existing home is often more practical and cost effective than buying in this tightly held suburb.

We’ve completed extensions across Mona Vale and nearby suburbs like Newport and Warriewood, working with all types of homes from older brick and tile to more recent coastal builds. Our team knows the local council requirements and what works for Northern Beaches properties. Every extension we build is designed around how your family actually lives, not just adding square metres.

Mona Vale’s proximity to the beach and strong school catchments keeps property demand high. Adding a well designed extension means you can stay in the area you love while gaining the extra space your family needs. A quality extension can add significant value to your property while giving you more room to enjoy the Northern Beaches lifestyle.

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 Mona Vale?

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

Why Mona Vale 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 Mona Vale?

A single room addition typically starts from $80,000, while a full ground floor extension starts from $150,000. Second storey additions generally begin around $250,000 depending on size and finishes. We provide a free quote after assessing your property and understanding what you need from the extension.

How long does a home extension take in Mona Vale?

Most home extensions take between 3 to 6 months from DA approval through to final handover. The timeline depends on the scope of work, whether it’s a single storey or double storey addition, and any site specific factors. We’ll give you a realistic timeframe during the quoting process and keep you updated throughout the build.

Do I need council approval for a home extension in Mona Vale?

Most home extensions in Mona Vale require either Development Application or Complying Development Certificate approval through Northern Beaches Council. The type of approval depends on your property, the size of the extension, and your zoning. We manage the full approval process for you, working with experienced architects and certifiers who know the local requirements.

Can you extend older brick homes in Mona Vale?

Yes, we regularly extend 1960s and 70s brick homes throughout Mona Vale. These properties are well built and suit extensions, whether you’re adding a ground floor living area or building a second storey. We assess the existing structure and design an addition that integrates properly with your home.

Do you service Mona Vale and surrounding suburbs?

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

Monstructions provides home extensions across Northern Beaches, including McCarrs Creek, Morning Bay and all surrounding suburbs.