Planning application
123 Benhill Road London Southwark SE5 7LZ
Works: Extension Loft or dormer Domestic
Read from the description, not a valuation. How we read the register
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
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.
As published by the council, reference 26/AP/1306
Application record
- Reference
- 26/AP/1306
- Type
- Householder Application
- Status
- Granted
- Decision
- Granted As published: Householder - GRANTED
- Received
- 6 May 2026
- Validated
- 7 May 2026
- Decided
- 25 Jun 2026
- Ward
- St Giles
- Decision by
- Delegated Panel - Complex
- Postcode
- SE5 7LZ
Site history
Applications at this address on the Southwark register
This site has had 3 applications since 2026: 2 approved, 1 refused.
-
26/AP/2138 Granted
123 Benhill Road London Southwark SE5 7LZ
Construction of a single storey side extension at lower ground level. Existing lean-to rear extension pitched roof changed to a flat roof, to match the height of the taller element of the side extension. 1nr rooflight and a green roof over rear extension. Door sill to raised ground floor Juliet balcony raised by 300mm to allow for the new side extension roof.
-
26/AP/1303 Refused
123 Benhill Road London Southwark SE5 7LZ
Prior approval notification for the construction of a: - Single storey side extension at lower ground level. - Extension to have a maximum height of 3m at the boundary. - Extension to have a maximum length of 4.85m from the parent building principal elevation. - 2.4m side extension from the existing outrigger, less than half the width of the property. - Existing lean-to rear extension pitched roof changed to a flat roof, with maximum height of 2.7m at the boundary. - 1nr rooflight and a green roof over rear extension. - Internal reconfiguration to lower ground floor including removal of 2nr chimney breasts.
Timeline
Dates from the published record
-
6 May 2026
Received by Southwark
-
7 May 2026
Validated
Checked as complete and ready for consideration.
-
25 Jun 2026
Decision issued: Householder - GRANTED
-
25 Jul 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Aarvold McLean Architecture Agent, an architecture practice registered in London
Active · incorporated 2017 · London
5 applications on PlanIndex · across 3 councils
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
32 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
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Open the documentsWhat this grant of permission means
Southwark granted permission on 25 June 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About householder applications
Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
123 Benhill Road London Southwark SE5 7LZ
Prior approval notification for the construction of a: - Single storey side extension at lower ground level. - Extension to have a maximum height of 3m at the boundary. - Extension to have a maximum length of 4.85m from the parent building principal elevation. - 2.4m side extension from the existing outrigger, less than half the width of the property. - Existing lean-to rear extension pitched roof changed to a flat roof, with maximum height of 2.7m at the boundary. - 1nr rooflight and a green roof over rear extension. - Internal reconfiguration to lower ground floor including removal of 2nr chimney breasts.
Refused Full applications Extension Loft or dormer 35 docsSmall domestic -
117 Benhill Road London Southwark SE5 7LZ
95% historically approved · decision due ~19 Dec
Construction of a rear box dormer and outrigger extension, including raising of the roof ridge by 400mm and raising of the rear chimney stack by 600mm; and addition of 2 no rooflights to the front roof slope.
Awaiting decision Householder Extension Loft or dormer 24 docsDomestic -
145 Benhill Road London Southwark SE5 7LZ
95% historically approved · decision due ~24 Nov
Certificate of lawfulness (proposed) for rear chimney removal.
Awaiting decision -
123 Benhill Road London Southwark SE5 7LZ
Construction of a single storey side extension at lower ground level. Existing lean-to rear extension pitched roof changed to a flat roof, to match the height of the taller element of the side extension. 1nr rooflight and a green roof over rear extension. Door sill to raised ground floor Juliet balcony raised by 300mm to allow for the new side extension roof.
Granted Extension Loft or dormerSmall domestic -
128 Benhill Road London Southwark SE5 7LZ
Construction of a ground floor rear extension and a second floor mansard roof extension. New rooflight to first floor outrigger.
Granted Householder Extension Loft or dormer 36 docsDomestic -
130 Benhill Road London Southwark SE5 7LZ
Replacement of the existing rear lean-to extension with a single storey side-rear extension; the construction of a roof extension and the raising of the existing chimney and parapet walls; and the replacement of the existing first floor window within the rear outrigger.
Granted Householder Extension Windows or glazing 15 docsSmall domestic
Other householder applications
In Southwark
-
26/AP/2158 Granted
7 Alma Grove London Southwark SE1 5PY
Erection of a rear ground floor side extension with a framed glass roof and bi-folding rear doors. Replacement of windows and door. Alterations to external facade.
-
26/AP/2601 Awaiting decision
49 Henshaw Street London Southwark SE17 1PE
Demolition of existing rear extension and construction of part single, part two storey rear extension and erection of roof terrace on main roof with balustrades and glazed access hatch.
-
26/AP/2545 Awaiting decision
76 Shenley Road London Southwark SE5 8NQ
Construction of a single storey side and rear extension to the rear; construction of a rear dormer roof extension over the main roofslope and the installation of 3x rooflights to the front roofslope.
-
26/AP/2533 Awaiting decision
28 Tyrrell Road London Southwark SE22 9NE
Construction of rear extension.
-
26/AP/0784 Granted
60 Grove Park London Southwark SE5 8LF
Refurbishment of the property including replacement of glazing with thermally efficient conservation windows templated after originals, construction of a single-storey rear extension, a loft extension, minor internal partition alterations, and removal of external soil vent pipes.