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123 Benhill Road London Southwark SE5 7LZ

26/AP/1306Householder ApplicationApproved
Householder

Approved on 25 June 2026

Site boundary (council red line)

Proposal

-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.

Received
6 May 2026
Ward
St Giles
Agent
Aarvold McLean Architecture
  1. Received6 May
  2. Validated7 May
  3. Consult.
  4. Target1 Jul
  5. Decided25 Jun

Decided in 49 days (council typically 49)

About this application

This is a full planning application for a rear extension at 123 Benhill Road London Southwark SE5 7LZ. Southwark has handled 1,045 applications of this type. This one was decided in 50 days. There have been 2 other applications at this address. In the past year there have been 97 applications across St Giles. We hold 1,312 applications in total for the SE5 postcode area.

93% of full applications at London Borough of Southwark were approved. Across all application types, the council typically decides in about 7 weeks (median).

Based on decided applications received in the last 3 years.See what's approved near your address

Application details

Postcode
SE5 7LZ
Application type
Householder Application
Scale / size
Small

Planning application dates

Date validated
7 May 2026
Target decision date
1 July 2026

Applicant and agent

Agent
Aarvold McLean Architecture
Architect profile
AARVOLD MCLEAN ARCHITECTURE LTD
Agent address
21 Drakefell Road London SE14 5SL GB

Planning decision

Statutory period
55 days

Additional information

Comments
0
Documents
29

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Flood zone 3: High probability (rivers and sea)Part of the site
Also checked, none recorded (24)

flood storage areas, conservation areas, listed buildings, Article 4 directions, tree preservation orders, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Associated applications

  1. 2026
    6 May

    - Single storey side extension at lower ground level. - Extension to have a maximum height of 3m at the…

    RefusedLarge Home ExtensionsFiled alongside26/AP/1303
  2. 2026
    6 May

    -Rear mansard roof extension over parent building. -Rear outrigger extension over existing outrigger…

    This applicationApprovedFull26/AP/1306

Source: Southwark

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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