Designed by architect Hawkins\Brown, the £45m project will provide the 66-year-old headquarters building on Wood Green High Road with a new annexe, offices, and restored civic spaces.
The building was the first civic centre of its size to be built after the Second World War and was listed in 2018.

A three-storey office block will be constructed on the car park to the rear of the site, linked to the revamped civic centre by a two-storey block.
The revamp, which will also upgrade the building’s energy performance, will see the building’s extensive precast concrete panels replaced with glass-reinforced concrete of the same colour.
Firms have until 4 December to return PQQs. For bid documents click here.