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(03) 9792 1966reception@extensionsunlimited.com.au
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Areas we service

House Extensions for your Dream Home in Box Hill

Nestled in Melbourne’s vibrant suburb, Box Hill beckons with its charm. Lush green havens and inviting cafes weave a picture of idyllic living, ideal for families seeking a strong sense of community. Exceptional schools, scenic walking paths, and convenient public transport solidify Box Hill’s position as a treasured gem. But what if your Box Hill home starts feeling a little restrictive? A growing family or a desire for multi-generational living can quickly create a space squeeze. Moving might not be the answer, but that doesn’t mean giving up on your dream home. Here’s where Extensions Unlimited steps in as your trusted home extension builders.
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Extensions Unlimited areas we service
Servicing Box Hill
Melbourne, VIC
Why choose us

Why choose Extensions Unlimited for your Box Hill Home Extension?

Contemplating ground floor extensions or second storey extensions for your home in Box Hill? Here’s why choosing our team is the right move:

A proven track record of successful projects
Acquired expertise honed since our establishment in 1994
An invitation to actively contribute your ideas during the design phase
A dedicated project manager ensuring seamless operations at all stages
Skilled tradies renowned for their expertise and reliability
Suppliers committed to timely deliveries, never letting us down
Our services

Our Comprehensive Home Extension Services

Our comprehensive services for home extensions in Box Hill encompass a myriad of offerings bundled into one package. From meticulously crafted home extension designs to providing a precise quote for the cost of the extension, we’ve got you covered. Delve into our services:

Your input is valued throughout the house extension design process
Receive a transparent and accurate estimation of the home extension cost
We handle all aspects, from plans and permits to engineering requirements
Employing Master Builders contracts to ensure agreed-upon timelines are met
Your construction is diligently overseen by our proficient team
Witness the successful realization of your dream ground and double story extensions
Our process

Box Hill Extensions Made Easy – Whitehorse Council Experts

We’ve streamlined the planning process since 1994, handling all the paperwork and approvals so your dream extension gets off the ground faster. We’ve built strong relationships with councils across Melbourne—including Whitehorse Council—to make your Box Hill extension process smooth and stress-free. We provide all the services you need to get your home extension ‘up off the ground.’ We have excellent working relationships with city councils across Melbourne. A one-stop-shop that saves you time, stress, and money.
1

Design Service

2

Building Permits and Plans

3

Contracts

4

Construction

Our process

Our Approach to Your Box Hill Dream

Since 1994, we’ve refined a proven process that makes house extensions in Box Hill smooth and stress-free. We begin with a detailed consultation to understand your lifestyle and goals, then move on to design, working drawings, and permits. Once approvals and engineering requirements are in place, our team manages soil testing, contracts, and construction—transforming your home with confidence and care. A dedicated project manager is with you at every step, ensuring clear communication and peace of mind.

House extensions

Box Hill Home Extension Specialists

Since 1994, Extensions Unlimited has been helping families in Box Hill create more space and upgrade their homes with confidence. Browse our case studies to see what’s possible, then contact us on (03) 9792 1966 to discuss your own extension project.

Our work

Melbourne Extensions - Completed

Blackburn home extension
Ground floor

Blackburn

Ivanhoe home extension
Ground floor

Ivanhoe

Mitcham home extension
Ground floor

Mitcham

Ground-floor living home extension
Ground floor

Ground-floor living

Bentleigh East home extension
Ground floor

Bentleigh East

Box Hill home extension
Second storey

Box Hill

Brighton East home extension
Second storey

Brighton East

Essendon home extension
Second storey

Essendon

Parkdale home extension
Renovation

Parkdale

Croydon Hills home extension
Renovation

Croydon Hills

Kitchen renovation home extension
Kitchen

Kitchen renovation

Croydon Hills home extension
Kitchen

Croydon Hills

Google reviews

Homeowners who’d build with us again

My husband and I recently finished a second story extension and ground floor bathroom renovation and the entire experience with EU was fantastic. From our initial meeting with Ted, our designer, we felt confident in their ability to deliver exactly what we…
James Russell
June 2026
We couldn't be happier with the incredible work done by Extensions Unlimited on our first-floor extension. From start to finish, the entire experience was seamless and professional. A huge thanks to Nick Uren, Building Manager — he was exceptional throughout…
Matt Wilson
April 2026
We wanted to knock down and build a new home, however the cost was too prohibitive. We engaged Extensions Unlimited and WOW are we glad we did. Our nervousness turned to excitement by our designer, Wayne, and his team, and after providing several concepts…
Jill Douglas
March 2026
Read all our Google reviews
Ready when you are

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Call us
(03) 9792 1966
Email
reception@extensionsunlimited.com.au
Visit us
15 Dandenong St, Dandenong VIC 3175
Office hours
Monday to Friday, 8:00am - 4:00pm