The redevelopment of Garden Square Shopping Centre is being undertaken by Sloane Projects Limited (A Martin Property Group company) and comprises of three elements; a complete redevelopment of Commerce House, the demolition and rebuilding of 23-25 Leys Avenue and a new build on Leys Square, adjacent to WHSmith.

The redevelopment will provide:

  • 46 high quality one and two bedroom apartments
  • 2 new retail units
  • An active frontage to both Leys Square and Commerce Way
  • A complete refurbishment to the external fabric of Commerce House
  • The creation of an enhanced gateway entrance to the shopping centre, appropriate to a modern shopping environment
  • A design that is complimentary to the heritage of Letchworth

Existing View

Proposed View



October 23

October 2018

Enabling Works

Demolition of 23-25 Leys Avenue and WHSmith store. Utility diversion works.

October 23

September 2018

Design and Pre-construction

Preparation of construction drawings and specifications. Submissions of Building Control Applications.

October 23

January 2019 – March 2020

Construction Phase

Removal of Commerce House roof, erection of new building adjacent to Esquires (block A) and erection of new building adjacent to WHSmith (block C).

October 23

December 2018

External Works

Ground works including excavation, pouring foundations and erecting concrete frame. New utility connections installed.

October 23

April 2020

Commissioning and Handover

Practical completion of all three blocks achieved. Handover of retail units and apartments above to new tenants.

October 23

March 2020

Decant Site

Removal of site hoarding, scaffolding, crane and all construction accommodation and welfare facilities.

Timeline for indicative purposes only. Any deviations to the timeline will be highlighted to tenants at the earliest opportunity.