A23 Streatham Hill final phase of works due to start next week

The major works on the A23 Streatham Hill, north of Croydon, which began 12 months ago, are due to enter their final phase from September 1.

The works have been undertaken by Transport for London in conjunction with Southern Gas Networks, who have been conducting major gas mains repairs on Brixton Hill, just to the north of the junction with the South Circular.

There were 72 collisions on this stretch of A23 in the three years to October 2024, with 75 people injured. “Safety improvements are a key priority,” TfL has said.

As the next phase of construction works begin next Tuesday, there will be new, temporary traffic restrictions in place along this stretch of the A23 until November.

The scheme is introducing protected cycle lanes, upgraded pedestrian crossings and continuous bus lanes. But for the next few months – into 2027 – journey times using this stretch of road will be longer.

TfL is completing Phase 4 of the project on the northbound section between Sternhold Avenue and the A205 junction at Streatham Place.

From September 1, Phase Five of the project will begin on the section between Christchurch Road and Holmewood Road, including upgrading signalised crossings, installing additional traffic islands and improving pavements.

“Lane restrictions will be in place throughout September,” TfL says.

“This will be followed by approximately four weeks of temporary traffic signals until late October, before lane restrictions return until mid-November. Final resurfacing work on Brixton Hill and across the A205 junction will then take place in late November.

“Once resurfacing has been completed, the scheme will be substantially finished and all traffic management will be removed from the carriageway. The cycle track is expected to open in early December once signage has been installed.”

TfL’s Julie Lewington said: “We’re pleased to be entering the final major phase of our work to transform the A23 through Streatham Hill, creating safer crossings, protected cycling facilities and more reliable bus journeys for the thousands of people who travel through the area every day.

“The scheme will also help support residents and local businesses by creating a more attractive high street, with wider pavements, new planting, trees and seating that will make it easier and more pleasant for people to spend time in the area.

“We know these works, alongside SGN’s gas main replacement programme, will cause disruption and we’re working closely with our partners to coordinate activity and minimise impacts wherever possible. We’d like to thank local residents, businesses and customers for their continued patience while we complete these vital improvements.”

More information and the latest travel advice is available at: tfl.gov.uk/streatham-hill-works

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