About Us

Central Highlands Sustainability & Accessibility is a consultancy business providing detailed assessments and specialist advice on sustainable building and accessible design for people of all equity, diversity, and inclusion with better living and working conditions for all people, regardless of age, gender, or mobility.

Sustainability and accessibility are advocacies we take seriously.

Our goal is to foster a sustainable future by creating innovative solutions that make a positive impact in communities and the environment.

We work closely with our clients, specifically architects, building designers, building owners and managers in Melbourne, Central Highlands region and surrounds.

With more than 25 years of experience in the building industry, Tim Blyth has expertise in building design, building project management, sustainability, Thermal Performance Assessment and Accessibility for people with Disabilities.

Tim is an Accredited Energy Rater, Accessibility Consultant and member of Design Matters, HERA and ACAA. He has received the Diploma of Access Consulting and the Cert IV in Home Energy Efficiency and Sustainability.

Below are CHSA’s four pillar values—the specific behaviour and skills we care about most.

As a company, Central Highlands Sustainability & Accessibility are strongly shaped by our four pillar values:



We do what we say we will do, and we mean what we say. Challenges do not deter us. Our enduring commitment to share our knowledge on emerging practices and progressive solutions in Sustainable Building and Accessible design ensure a high standard of products and services.



Excellence is at the heart of what we do. We redefine expectations and make sure these expectations are met and surpassed. We are continually looking for new ways to produce works of quality with exceptional results.



Your goals are our goals. Always with human needs in mind, we act with empathy and we focus on putting ourselves in the shoes of others. We thrive on collaboration to deliver exactly what our clients need.



We are trustworthy and ethical. We stand for integrity and we speak the truth. Whenever we commit to a project, we are open and honest in our communication. We treat our clients with unwavering candour and unreserved respect.

What Our Customer’s Say

CHSA acknowledges the Traditional Custodians of the land we live and work on, the Wadawurrung, Dja Dja Wurrung and Djab Wurrung People, and recognises their continuing connection to the land and waterways.


We pay our respects to their elders past, present and emerging and extend this to all Aboriginal and Torres Strait Islander People.