About ASTA Building Consultants
Who We Are
ASTA Building Consultants is comprised of Andy Corfield and Tanya Grabnar and we pride ourselves on being an architect/builder team with over 70 years combined experience in the building industry.
Together Andy and Tanya area team that offer this experience and knowledge as a consultancy service to assist in the process of selling property and to help others in their processes and to better understand the building industry.

Andy Corfield
Andy is a registered builder with more than 40 years of experience in the building industry, having completed an apprenticeship in Carpentry/Joinery in England in 1981, before emigrating to Australia in 1986. Throughout the years, he gained a wealth of knowledge and expertise in both commercial and residential properties, with experience in supervising, property management, building and carpentry.
His experience within residential building has been broad and includes building new homes and extending and renovating existing homes. He has a Certificate 4 and Diploma in Building and Construction and is also a Registered Builder within Victoria and Queensland. He has also co-founded a development and construction company that involved purchasing properties to subdivide blocks and build new homes, which also expanded into multi-unit developments.

Tanya Grabnar
Tanya is a registered architect with more than 30 years of experience as an architect in the building industry, having completed a Bachelor of Planning and Design and a Bachelor of Architecture both at Melbourne University, before registering as an Architect with the ARBV in Victoria 1995.
Throughout the years, she has gained extensive knowledge and experience in both commercial and residential buildings and development. Her experience includes acting as a team leader, drawing, designing, specification wring and project management on a wide range of building types and scale. Over the last 20 years she has focused on designing and delivering residential buildings including extensions, new homes and unit developments.
Our Vision
Our vision is to be reknowned as providing the best customer service, reliability, professionalism and speedy reports and advice.
To be a team that you can turn to for advice and assistance. To be the leading 137B Owner Builder Report inspection company in Victoria.
