• Trethowan Heritage offers expert services in heritage planning, conservation and adaptive reuse.

    We partner with clients across private, commercial, institutional and government sectors to deliver heritage outcomes that respect cultural values and promote sustainable, meaningful change.

    Our approach is rooted in authenticity and traditional craftsmanship, ensuring that every project maintains the unique character of heritage places while supporting their ongoing use and relevance.
  • Home
  • Services
  • About
  • Contact
  • Projects
  • Level 2/696 Bourke Street
  • Melbourne VIC 3000
  • 68 Piper Street
  • Kyneton VIC 3444
  • hello@trethowan.com.au
  • T 03 9421 5448
  • Follow us on Instagram
The Fifth Province
Commercial
  • Heritage,
  • Restoration
Greenline Project Hub
Institutional
  • Heritage
Malvern East House
Residential
  • Architecture,
  • Heritage,
  • Interiors
Barwon Heads Golf Club
Commercial
  • Heritage
Queen Victoria Market Shed Restoration
Commercial
  • Heritage,
  • Restoration
140 Flinders Lane Melbourne
Commercial
  • Restoration,
  • Heritage,
  • Interiors
271 Spring Street
Commercial
  • Interiors,
  • Heritage,
  • Restoration
563 Bourke Street Melbourne
Commercial
  • Interiors,
  • Heritage,
  • Restoration
Bellarine Peninsula House
Residential
  • Restoration,
  • Heritage,
  • Interiors
Emporium Melbourne
Commercial
  • Heritage,
  • Restoration
Cremorne House
Residential
  • Heritage,
  • Architecture
Firbank Grammar – Hindley House
Institutional
  • Architecture,
  • Heritage,
  • Interiors
St Peter's Eastern Hill Plaza
Institutional
  • Restoration,
  • Heritage
Anglican Diocese of Melbourne Offices
Institutional
  • Interiors,
  • Restoration,
  • Heritage
Queenscliff House
Residential
  • Architecture,
  • Heritage

© Trethowan Heritage 2025

  • Privacy/Terms
  • Website by Univers

Our Offices

  • Level 2/696 Bourke Street
    Melbourne VIC 3000
  • 68 Piper Street
    Kyneton VIC 3444

Contact Us

  • hello@trethowan.com.au
  • T 03 9421 5448
Follow us on Instagram