Greg Clark Building (GCB) is a small professional construction company that has been operating in the Lismore and surrounding region of NSW for over 32 years. In that time we have established a reputation as a quality builder of commercial and multi residential projects from $250,000 to $10M On-Time and On-Budget. With over 30 staff and a host of local subcontractors and suppliers we invest in the local economy and support many local businesses and social groups.