Croydon is now a full 20mph borough after its fifth and final area went live.
The new speed limit applies to all streets in Purley, Woodcote, Kenley, Coulsdon and Old Coulsdon, plus parts of Sanderstead and South Croydon.
The exceptions to the new 20mph limit in Area 5 are private roads, Transport for London red routes and several Croydon A-roads. These include Chipstead Valley Road, Godstone Road, Coulsdon Road, Plough Lane and Farthing Way.
In 2015, the council divided the borough into five areas and began introducing 20mph after making the scheme an administration priority. Area 1 in the north went live in September 2016, Area 2 in the north-east went live in March 2017, and the north-west area’s 20mph limit began in November.
According to the Royal Society for the Prevention of Accidents, 20mph limits reduce vehicle speeds and cut the risk of being injured or killed in an accident.
All roads in Area 5 covered by the new speed limit have 20mph signs, and drivers caught speeding by police can expect fines, points on their licence or prosecution.
“Slower speeds mean safer streets and a better environment for our residents, so I am very proud that we have delivered on our council commitment to introduce this 20mph limit all across Croydon,” said Councillor Stuart King, cabinet member for transport and environment.