All buildings over 18 metres which have submitted cladding samples have failed combustibility tests rolled out after the Grenfell Tower fire.
The Department for Communities and Local Government (DCLG) said 243 buildings in 57 local authorities had failed combustibility tests.
These comprise of 235 high-rise residential buildings, one combined school and residential building, another school and six buildings at five NHS trusts.
Of the total, 61 buildings failed tests in nine areas the DCLG did not identify.
No results from the further raft of tests announced earlier in July have been made available, a department spokeswoman said.
The list of buildings and areas where combustibility tests have been failed includes:
Croydon - 4
Greenwich - 2
Lewisham - 3
Sutton - 1
Wandsworth - 2
61 buildings in nine areas which the DCLG did not identify
Six buildings at five NHS hospital trusts
One school in London
A spokesperson for Croydon Council assured residents that none of the four buildings that failed the test belong to the council.
"All council tower blocks in Croydon have been checked and confirmed as having good-quality, fire-retardant cladding," the spokesperson said.
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