Trinity Street to close for month-long roadworks

One student said that the closure will cause ‘disruption’ as students move into Caius’ central site

Pedestrians, cyclists, and vehicles will be affectedRyan Teh for Varsity

by Bela Davidson

Saturday September 13 2025, 7:46pm

Cambridge's Trinity Street is set to close for a month for roadworks, blocking access for pedestrians, cyclists, and vehicles between Rose Crescent and St Mary’s Street.

Trinity Street is a busy route in central Cambridge for tourists and University activity.

The closure, from this Monday (15/09) until late October (24/10), affects businesses and University properties, including Michaelhouse Cafe and Gonville & Caius College.

Cambridge City Council stated that affected properties will remain accessible during the closure.

A signed diversion route will be in place for pedestrians. It proceeds from St John’s Street to the Four Lamps roundabout, then north to Chesterton Road, west to Northampton Street, south on Queen’s Road and back to Trumpington Street and the city centre.

This diversion route is approximately 3.1 miles and takes approximately one hour to walk.

One student from Gonville & Caius said: “[Trinity Street] is going to be closed when everyone’s moving in, so I think it’s going to cause quite a bit of disruption.

"Not just for Caius and people living in this area, but also probably John’s and Trinity, as the construction is blocking the path to their main entrances,” they added.

Council proposes £92 million project to renew city-centre

The roadwork involves installing fibre ducting for the University. This will be carried out by CB Groundworks & Construction Ltd and will be overseen by the Cambridgeshire County Council.

On Thursday (11/09), Gonville & Caius said on Instagram that the construction on Trinity Street is part of their decarbonisation project.

The College’s project aims to replace gas-fired space and water heating with air source heat pumps. Caius said the fibre ducting will connect pumps overlooking Market Square with the Old Courts site.

The decarbonisation project is scheduled for completion by summer 2026.

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