House Extensions for your Dream Home in Knoxfield

Nestled within Melbourne’s vibrant suburb, Knoxfield beckons with its charm. Lush green parks and inviting cafes weave a picture of idyllic living, perfect for families seeking a strong sense of community. Exceptional schools, scenic walking trails, and convenient public transport solidify Knoxfield’s position as a treasured gem. But what if your Knoxfield haven 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.

Why Choose Us for Your Knoxfield Home Extension?

Contemplating ground floor extensions or second storey extensions for your home in Knoxfield? 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 Comprehensive Home Extension Services

Our comprehensive services for home extensions in Knoxfield 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 realisation of your dream ground and double storey extensions
Ground Floor Extensions in Knoxfield

Ground Floor Extensions

Second Storey House Extensions in Knoxfield
Second Storey Extensions  
Multi-Generational Living in Knoxfield
Home Renovations in Knoxfield
Home Renovations  


We have a proven house extension process that we have developed since 1994. 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.


Free initial meeting with your house extension designer. Tell us about your dream home so we can provide customised and informed solutions.


Permits are essential before building can begin. We’ll get approval and take care of any fees for you, communicating directly with the council.


Work is carried out in three stages to minimise disruption: Design Development, Preliminary Works Agreement, Final Contract.


Our constructions are regularly inspected by independent surveyors who issue reports during the progress, with a final certificate upon completion.

Our Knoxfield Extension Approach

Design, Working Drawings, Permits and Engineering, Assurances, Contracts & Construction Over the many years since our establishment in 1994, we’ve fine-tuned a highly efficient process for bringing your house extensions in Knoxfield to fruition. Beginning with an extensive consultation to gather your ideas and lifestyle information, we meticulously craft the perfect design. Subsequently, we create detailed working drawings for our builders and liaise with the local council to secure permits and adhere to engineering requirements. Moreover, we offer assurances to guarantee the level of service you can expect from us. Following soil and feasibility testing for the extension, we invite you to proceed to the construction phase, the most exhilarating part—the transformation of your dream home into a reality. Throughout the building process, any queries can be addressed to your designated project manager, ensuring a worry-free experience.

Enquire with Our Home Extension Builders in Knoxfield

If you’re seeking the finest home extension builders to help you turn your current residence into your dream home, look no further. At Extensions Unlimited, this is our daily commitment, a legacy we’ve upheld since our inception in 1994. Keen to glimpse our work? Explore our house extension case studies, showcasing our previous projects, and begin envisioning the potential for your own house extensions in Knoxfield. Have questions? Contact us today on (03) 9792 1966.

House extensions in surrounding suburbs

Case Studies


We would like to express our gratitude to you & your team for your recently completed Project of a second storey addition to our existing weatherboard home. From our first meeting with the Designer, we were confident in his enthusiasm for the business & his passion to design an extension...

Steve & Sophie – Ringwood Nth

It was a great experience and was handled with great care. It could have been a stressful time with a toddler, newborn, two dogs & a home extension. But it was really good & we really love our new space and home.

Ryan & Lisa – Viewbank

We purchased in an area we loved & that was a major factor in making the decision to extend...we loved the idea of being able to create something that suited our needs.

Alex & Sam – Knoxfield

Right from the first phone call we found the whole team at Extensions Unlimited to be very attentive and professional. The Design Consultant listened to our requests, and came up with a design that suited our needs and existing construction. Once the work commenced, we had fairly tight deadlines due...

Brenda – Glen Waverley

Our initial contact with the company was great. The Design Consultant met us for our first appointment and listened to our ideas and came up with a design which was exactly what we were looking for. The process was very easy and construction started after only a few months of...

Michael & Natalie – Nunawading

Very happy with our upstairs extension. The company stood out from the very beginning in terms of customer service as well as promptness and clarity of communication.Our project was finished on time and within budget. Have to especially acknowledge our Project Manager and our Designer. Our Designer was very patient...

Harish – Essendon

We opted for Extensions Unlimited purely based on our experience with our Designer. We were impressed by his professionalism & conscientiousness in finding the best design for our needs. Moreover, we felt he was someone we could trust. In fact, all Extensions Unlimited staff members were professional & friendly, so...

Stephen & Kim – Glen Waverley

Excellent Project Management! Communication was always clear, precise, timely & trustworthy. The whole extension / renovation process was well handled and we enjoyed the journey.

Huei & Chin-Wei – Mount Waverley


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