Home Extensions The Rocks

If you’re looking for home extensions The Rocks homeowners trust, you’ve found the right team. Monstructions handles everything from initial design through to final handover, proudly serving The Rocks, Millers Point, Dawes Point and all neighbouring suburbs across the North Shore 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 The Rocks, expertly designing and building additions that suit the homes and families throughout the North Shore area. We’re proud to serve homeowners throughout The Rocks, Millers Point and Dawes Point 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 The Rocks
Built For The Way You Live

The Rocks features some of Sydney’s oldest sandstone cottages and terraces dating back to the 1800s, mostly on small blocks with heritage overlays. Many homes here are compact two bedroom workers cottages or narrow terraces with limited living space. Adding a rear extension or converting an attic space can give you the extra room you need without leaving this historic harbourside location.

We’ve worked on extensions across The Rocks and neighbouring Millers Point, where respecting heritage character while creating modern living space is essential. Our team understands the heritage restrictions in this area and works closely with council to get approvals through. Whether it’s a single storey rear addition or a carefully designed internal reconfiguration, we know how to make these older homes work for modern families.

Property values in The Rocks remain strong given the waterfront location and proximity to the CBD. A well planned extension can add significant value to your home while giving you more space to enjoy the lifestyle this area offers. Many homeowners here find that extending makes more sense than buying something larger, especially when you’re already in such a tightly held location.

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 The Rocks?

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

Why The Rocks 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

Mosman

"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

Chatswood

"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

Willoughby

Products we use

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FAQS

Got a question?

How much does a home extension cost in The Rocks?

A single room addition in The Rocks typically starts from $80,000, while a full ground floor extension begins around $150,000. Second storey additions start from $250,000 depending on access and structural requirements. We provide a free quote after assessing your property and discussing your needs.

How long does a home extension take in The Rocks?

Most home extensions in The Rocks take between 3 to 6 months from development approval through to final handover. Heritage approvals can add extra time to the DA process in this area. We’ll give you a realistic timeline during your initial consultation based on the scope of your project.

Do I need council approval for a home extension in The Rocks?

Yes, almost all extensions in The Rocks require either a Development Application or Complying Development Certificate due to heritage restrictions across the area. Most properties here fall within heritage conservation areas requiring additional approval steps. Our team manages the full approval process including heritage consultants and council submissions.

Can you extend heritage cottages in The Rocks?

Yes, we regularly work on heritage listed and heritage conservation properties throughout The Rocks. Extensions must be sympathetic to the original building and typically focus on rear additions or internal reconfigurations. We work with heritage consultants and council to design extensions that respect the character of your cottage while giving you the space you need.

Do you service The Rocks and surrounding suburbs?

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

Monstructions provides home extensions across North Shore, including Millers Point, Kurraba Point and all surrounding suburbs.