What we do

My name is Antoine Rassy, founder and head Civil and Structural Engineer and Builder at A to Z Builders Pty Ltd. My team and I can help you build, extend or renovate your dream home to suit your individual desire.

With almost 30 years of experience in the Architectural, Engineering and Construction Industry. We would be delighted to be working along the side of you to assist, guide and advise you with the decision making process and tailoring your design to meet your financial budget.

Our utmost importance is our customer satisfaction. Our promise to you is to provide you with our exclusive service with efficiency, reliability and attention to detail in everything we do. We will deliver to you quality projects within a safe working environment and within a timely plan.
We look forward to you contacting us to discuss your future project.


We provide you with a building design tailoring your individual requirements. We prepare documents, drawings, specifications and relevant reports for submission to relevant authorities within the acceptance of council regulations.

Our services accommodate for individual home owners, owner builders and builders. We will provide you with advice and guidance through the decision making process. We specialise in new projects of single/double dwellings, villas, town houses, extensions/renovations, dual occupancies, garages, pergolas, granny flats, attics and office/shop fit outs.

Antoine has been registered and trading under “Plans R Us” Architectural & Engineering Services since 2003.


Our aim is to deliver a personalised service to cover a broad range of structural, storm water, and civil engineering designs for small and large projects.

We take pride in applying our expertise and skills to maximising the design and producing cost effective plans for DA submissions with your local council or approved certifier.

Antoine is a registered member with the “Institution of Engineers Australia (MIE Aust)” since 2003.


We deliver quality new dwellings, renovations/extensions to Sydney residents providing them with cost effective construction and project management services.

Our goal is to ensure your project experience is an enjoyable one. We will keep you informed of your projects process every step of the way from the start to completion.

We rely on our quality service and client satisfaction to repeat our business by client referrals. Our workmanship is within health and safety guidelines and to minimise the impact on the environment.

We take time to understand your dreams, your needs and respond to them with quality workmanship and commitment to keeping projects on time and within budget.

Antoine is a registered member of the Australian “Master Builders Association”

Recent buildings

What our happy clients says

“I was very happy with the company that build the granny flat for me from designing it to construction in a short period of time.”

“I am pleased with the design of my house and mostly pleased with the time and quality of construction. Would definitely recommend Antoine for future projects. ”


Start your dream home today!

From design to development

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We would love to hear from you