Sunday, 4 October 2026
Newsletter Retrofit Today Directory

Passivhaus designer · Edinburgh

Calum Duncan Architects

Visit website (opens in a new tab) Call 0131 452 9705

About

Calum Duncan Architects: Passivhaus designer, Edinburgh. An active limited company, incorporated in 2015.

Calum Duncan Architects is an Edinburgh practice with Passivhaus, conservation and sustainability accreditation, focusing on improving and extending existing buildings as well as new work. It describes itself as a small, collaborative team offering a personal service to clients. The practice is based on Thirlestane Lane in Edinburgh.

What they offer

  • Passivhaus design
  • Conservation architecture
  • Sustainable refurbishment
  • Residential projects
  • Community buildings

Company details

Registered name
Calum Duncan Architects Ltd
Incorporated
2015 (11 years on the register)
Company status
Active
Company type
Private limited company
Company number
SC516826 (Companies House, opens in a new tab)
Registered office
13a Thirlestane Lane, Edinburgh
Nature of business
71111 Architectural activities
Size
Micro business (under 10 staff) (estimated)

Source: Companies House public register.

Areas covered

Serving Scotland. View on OpenStreetMap (opens in a new tab)

Is this your business?

This listing for Calum Duncan Architects was compiled from public sources (the company's own website and the Companies House register), so some details may be out of date. Correcting it is free: email hello@retrofittoday.co.uk with the address of this page and we will correct, update or remove the entry, usually within a few working days.

Want to stand out? A listed company profile is £100 a year: your own description, logo, full services and contact details, shown first in its category and on the network hub. How it works.

Details are compiled from the company's own published information and the Companies House public register. A listing is not an endorsement by Retrofit Today or TC Media Group, and details can change: please confirm with the company.