One of HDSA Group's specialties is "Rehabilitating the Past". 

HDSA is committed to providing high quality workmanship, delivered on time and on budget to ensure our Heritage Icons are witnessed by generations to come.

HDSA is proud to list the following heritage works completed:

• Bindijine Wharf (Beecroft Weapons Range)

• Dorman Long (Crystal Palace, Luna Park Sydney)

• Hospital Wharf in the Sutherland Shire

• Lilli Pilli Wharf in the Sutherland Shire

• Woolloomooloo Finger Wharf

• Jones Bay Wharf

• Walsh Bay Pier 8/9

• Walsh Bay Pier 6/7

• Walsh Bay Shore 2/3, Pier 2/3

• Pier One Sydney Harbour

• Colgate Wharf Balmain

• Manly Wharf

• NSW Ports, Port Kembla - rebuild of Heritage train carriages for museum yard