Planning application
145 Benhill Road London Southwark SE5 7LZ
Works: Extension Loft or dormer Small domestic
Read from the description, not a valuation. How we read the register
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Construction of single storey rear extension at lower ground level with 2no. rooflights and green roof over rear extension
As published by the council, reference 25/AP/3247
Application record
- Reference
- 25/AP/3247
- Type
- Householder Application
- Status
- Under consideration/assessment
- Received
- 7 Nov 2025
- Validated
- 7 Nov 2025
- Ward
- St Giles
- Postcode
- SE5 7LZ
Site history
Applications at this address on the Southwark register
This site has had 2 applications since 2025.
-
26/AP/2867 Awaiting decision
145 Benhill Road London Southwark SE5 7LZ
Certificate of lawfulness (proposed) for rear chimney removal.
Timeline
Dates from the published record
-
7 Nov 2025
Received by Southwark
-
10 Aug 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 2 January 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Southwark took a median of 52 days over the applications it decided in the last year.
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
30 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.
Watch members (£5 a month) open the document list from here.
Open the documentsWhat happens while it is decided
This application is with Southwark for determination, against a statutory target of eight weeks. Over the last year Southwark decided householder applications in a median of 56 days. More in our guide to how long planning decisions take.
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
-
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 -
152 Benhill Road London Southwark SE5 7LZ
Ground floor rear extension
Granted Householder Extension 24 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 -
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 -
123 Benhill Road London Southwark SE5 7LZ
-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.
Granted Householder Extension Loft or dormer 32 docsDomestic
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/2517 Awaiting decision
65 Calton Avenue London Southwark SE21 7DF
Construction of a ground-floor side-rear extension with terrace reinstated above; alterations to the rear outrigger, including raising the eaves and ridge, removal of the chimney stack, replacement windows, and installation of two rooflights; enlargement of the existing rear dormer; erection of bin and bike stores in the front garden, together with new landscaping and a front boundary wall; installation of an EV charger to front elevation and removal of existing front porch door; removal of existing garden buildings and erection of a shed, sauna and pergola in the rear garden, together with new landscaping and decking.