Looking to renovate your home to create a calming and light-filled family sanctuary?

One of the biggest challenges a renovator faces is to gain the greatest value from the design and construction process. You can unlock the true potential of your home renovation by using the right architect and the best architectural services – to ensure your home renovation suits your needs and is a wise investment.

Cathi Colla Architects understand what it means to live well.



For creating homes with a focus on health and harmony. Creating architecture to live, and thrive in. Creating homes that inspire, that are sustainable, and homes that are beautiful.


New homes, alterations to existing homes, alterations to heritage buildings, new kitchens and bathrooms, as well as the creation of outdoor living, garden and leisure projects. Providing full architectural design services. Past and current projects located in Melbourne and suburbs, regional Victoria, and the Central West and South Coast regions of NSW.


Clients are the centre of our design process. Effective, clear communication with all project stakeholders is essential. We use hand and 3-dimensional CAD drawings to create the most appropriate, efficient, and effective mode for the provision of drawings and documents for clients and related stakeholders. We frequently operate via email, Skype, secure business website, and most preferably, in person.

Free Tips and Tricks

Not sure how to move forward with your own home renovation?

We have been busy creating, writing, and videoing. We have prepared a series of useful resources just for you – to help you get your new home project off to a great start – and on the right track.

Get your home off to a great start now

Request Consultation

Are you having problems with getting your renovation started?

To help you to identify and anticipate the potential roadblocks to a successful renovation, we offer a free 20-minute phone consultation with an architect. This will help you to clarify what you need to do, and when you’ll need to do it.

Request now

Sun Seeker – A Home Renovation for a Growing Family, Brunswick East

We engaged CCA to design, plan, document and project manage our home renovation and extension.

Our 2 bed, modest Californian bungalow was transformed into a bright and light, 4 bed family home with dual living spaces. We had some planning challenges which CCA helped us navigate through.

We are thrilled with the end result.

27 Barkly Street, Brunswick East, Victoria, Australia

Renovations and Extensions to Existing Home, Brunswick East

Thank you for your professionalism, dedication, decisiveness and committed nature to which you conducted your role as a superintendant on this project.

Having now completed a few projects it is becoming easier to recognise the architects who can combine their attention to detail, creativeness and architectural style with a practical approach to building.

I would most definitely be happy to work with you again in the future.

Simple palette of colour and materials
Renovation and additions to an existing single storey weatherboard cottage in Brunswick East

Melbourne Tianjin Gardens, Melbourne, Victoria (with Williams Boag Architects)

I would like to take this opportunity to express both the City of Melbourne’s and my appreciation of the effort that your company expended and the fine architectural result that has been achieved. I have received nothing but glowing reports on all aspects of  the project.

I would like to personally thank Cathi Colla for her involvement and her assertive point of view in endeavouring to achieve the results of which she had asked and we would expect. She was at all times courteous and a pleasure with whom to work.

James A. Jackson, City of Melbourne, City Projects Division, Project Management Branch

Alterations and Additions to Existing Residence, Thornbury, Victoria

I could see Cathi understood where we were at.

I knew how I wanted it to function but I didn’t know how I wanted it to look, or how it could look.

That is where Cathi came in.

Donna M

Alterations to Existing Apartment, Toorak, Victoria

When we sat down with Cathi and went through the scheme I was really impressed. Cathi had listened to our requirements, addressed them, and come up with some really interesting ideas for our apartment.
I was impressed with Cathi’s attention to detail and professionalism. The work she did exceeded my expectations.

Sectional perspective sketch
Interiors, deck and garden design for existing apartment, Toorak
Don C

Site Appraisal Service, Existing Residence, North Sydney, NSW

We found that the services you provided far exceeded our expectations.

We especially appreciated the time and effort you put into understanding our needs and clarifying the brief. This was very much appreciated given that we are living on the other side of the world.

Bernadette, Vancouver