123 Benhill Road London Southwark SE5 7LZ

Under consideration/assessment 26/AP/1306

Extensions & alterations

Council

Southwark

Date received

6 May 2026

Date validated

7 May 2026

Postcode

SE5 7LZ

Description

-Rear mansard roof extension over parent building. -Rear outrigger extension over existing outrigger. -Maintain pitch of front roof slope. -Raise ridge line by 400mm. -2nr rooflights to front roof slope, 1nr rooflight over the mansard extension, 1nr rooflight over the outrigger extension. -Raise parent building chimney stack by 400mm to allow for raised ridge and mansard extension. -Raise outrigger party parapet wall and rear chimney stack by 1950mm to allow for outrigger extension. -Existing lower ground floor lean-to rear extension pitched roof changed to a flat roof, with maximum height of 2.7m at the boundary and 1nr rooflight. Internal reconfiguration across the lower ground floor. -Removal of 3nr chimney breasts. -New cycle and bin storage to front yard.

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7/10

Planning Authority Score

#48 of 282

Southwark is faster than most councils at deciding householder applications, ranking #68 out of 282. Householder applications are slightly more likely to be approved here (95%) than the national average (90%).

Southwark decision performance

Based on MHCLG data, 2025

91%

Overall approval rate

Above avg (87%) #104 of 282

95%

Householder approved

Above avg (90%) #85 of 282

84%

Decided in 8 weeks

Above avg (71%) #68 of 282

36%

Extended time limit

Below avg (40%) #107 of 282

92%

Minor dwellings approved

263 decided (1-9 homes)

70%

Major dwellings approved

10 decided (10+ homes)

78%

Change of use approved

36 decided

1,589

Total decisions

137 refused in 2025

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123 Benhill Road London Southwark SE5 7LZ

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26/AP/1303 - 6 May 2026