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
- 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: 1 approved, 1 refused.
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26/AP/2138 Decided
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.
Trade members open them from here.
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 500 metres
-
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 -
123 Benhill Road London Southwark SE5 7LZ
95% historically approved · decision due ~15 Sep
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.
Decided 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 -
138 Benhill Road London Southwark SE5 7LZ
Construction of a side-rear extension; the construction of a mansard roof extension and the raising of the existing chimney and parapet walls; and the installation of 2x rooflights to the front roofslope.
Granted Householder Extension Loft or dormer 41 docsDomestic -
145 Benhill Road London Southwark SE5 7LZ
95% historically approved · decision due ~2 Jan
Construction of single storey rear extension at lower ground level with 2no. rooflights and green roof over rear extension
Awaiting decision Householder Extension Loft or dormer 30 docsSmall domestic
Other householder applications
In Southwark
-
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.
-
26/AP/1958 Granted
38 Winterbrook Road London Southwark SE24 9JA
Demolition of the existing rear extension and erection of a single-storey wraparound rear and side extension, together with associated alterations to existing openings, removal of the rear chimney and addition of wooden storage to the side. The proposals also incorporate previously approved roof works under planning permission ref. 25/AP/3282, comprising the enlargement of the existing rear dormer and installation of two rooflights.
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26/AP/1789 Granted
81 Grove Hill Road London Southwark SE5 8DF
Construction of a single storey rear extension, alteration to the existing side extension roof and rear elevation, internal reconfiguration and associated work
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26/AP/1831 Granted
20 Homeleigh Road London Southwark SE15 3EE
Construction of L-shaped dormer loft conversion with 450mm ridge raise and installation of three rooflights on front roof slope.
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26/AP/1814 Granted
7 Tollgate Drive London Southwark SE21 7LS
Rear ground floor extension, garage conversion and partial courtyard infill with associated internal alterations, rooflights, a pergola above the front door and the over the rear terrace. The conversion of the loft to create additional storage and the installation of a rooflight to the main roof.