Planning application
15 Colnbrook Street London Southwark SE1 6EZ
Works: Extension Windows or glazing
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Listed building consent for the first-floor rear extension to existing outrigger; lowering & reinstatement of front parapet entablature; repair and re-glazing of existing windows; replacement of rear basement window with French doors; installation of Air Source Heat Pump and building services upgrades; associated internal alterations, repairs, and landscaping. (Revised description)
As published by the council, reference 26/AP/1115
Application record
- Reference
- 26/AP/1115
- Status
- Granted
- Decision
- Granted
- Received
- 20 Apr 2026
- Validated
- 5 May 2026
- Ward
- St Georges
- Parish
- Borough, Bankside And Walworth
- Postcode
- SE1 6EZ
Site history
Applications at this address on the Southwark register
This site has had 4 applications since 2022: 2 approved, 2 refused.
-
26/AP/1114 Granted
15 Colnbrook Street London Southwark SE1 6EZ
First-floor rear extension to existing outrigger; lowering & reinstatement of front parapet entablature; repair and re-glazing of existing windows; replacement of rear basement window with French doors; installation of Air Source Heat Pump and building services upgrades; associated internal alterations, repairs, and landscaping.
-
22/AP/1032 Refused
15 Colnbrook Street London Southwark SE1 6EZ
Construction of extension on rear outrigger, restoration of front facade and removal of chimney breast at lower ground floor
-
22/AP/0881 Refused
15 Colnbrook Street London Southwark SE1 6EZ
Construction of rear extension on outrigger
Timeline
Dates from the published record
-
20 Apr 2026
Received by Southwark
-
5 May 2026
Validated
Checked as complete and ready for consideration.
-
10 Aug 2026
Added to PlanIndex
-
18 Sep 2026
Status changed to Granted
Previously Under consideration/assessment.
Documents
Plans, drawings, consultee responses and the officer's report
42 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 this grant of permission means
Southwark granted permission, 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 this record
The published feed does not state which type of application this is; the register entry on Southwark's portal will say. Our guide explains the common types.
Nearby applications
Within 0.3 miles
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The Garages Land To Rear Of 108 St Georges Road London Southwark SE1 6EZ
95% historically approved · decision due ~1 Oct
Non-material amendment of planning permission ref: 21/AP/2433 dated 21.01.2022 for 'Demolition of an existing garage and construction of a two-storey, 1 bedroom dwelling house.' Amendments include: 1. The position of the internal staircase is to be revised to create a more open and functional layout at both ground floor and basement levels. 2. The bathroom layout is to be reconfigured to provide a more generous entrance hall. 3. The approved front window is proposed to be replaced with a double-glazed sliding door incorporating a 100mm opening restrictor on the ground floor. 4. The high-level rear window is proposed to be repositioned slightly to align with the revised internal layout. 5. New slot windows are proposed to the side elevation to augment daylight in the entrance hall. 6. Storage repositioned.
Decided Demolition Windows or glazingDomestic -
15 Colnbrook Street London Southwark SE1 6EZ
First-floor rear extension to existing outrigger; lowering & reinstatement of front parapet entablature; repair and re-glazing of existing windows; replacement of rear basement window with French doors; installation of Air Source Heat Pump and building services upgrades; associated internal alterations, repairs, and landscaping.
Granted Extension Windows or glazing 55 docs -
5 Colnbrook Street London Southwark SE1 6EZ
1 x False Acacia - Reduce the crown of the tree back to the most recent points of reduction. Remove 2 lower branches over NDG and towards house as shown on photo
Granted Trees 5 docs -
13 Colnbrook Street London Southwark SE1 6EZ
Details to Discharge Condition 5. Detailed drawings plans as required by planning permission 21/AP/0188 dated 11/3/2021for internal refurbishment of the building on all floors including repair of historic fabric, damp proof works, new openings and wider openings at Lower Ground Floor removal of modern bathroom fittings First Floor rear room removal of modern partitions at Second Floor level and installation of bathroom. External alterations including widening of the outrigger at Ground Floor level and replacement of the existing window with a new sash window in a wider opening. Widening of opening in rear wall and installation of new timber French doors and replacement of UPVC window with a timber sash.removal of existing door to the outrigger and filling in of opening with new brickwork to match existing. Installation of a rooflight. Replacement of the mansard windows with doors on the front elevation.
Granted Conditions Extension Loft or dormer +1 9 docs -
13 Colnbrook Street London Southwark SE1 6EZ
Widening at Ground floor level to existing outrigger to match footprint at Lower Ground Floor, new roof and new enlarged window. Removal of modern window to outrigger at Lower Ground Floor level. Installation of a new timber sash window to match existing rear windows. Removal of outrigger door and filling in on the opening with new brickwork to match the existing.. Removal of the modern French doors, opening increased by 300mm and installation of new timber glazed doors, at Lower Ground Floor. Removal of existing windows to modern mansard extension (Front elevation) and installation of inward opening timber/ glazed doors. Introduction of a glazed access hatch (900mmx900mm) to mansard roof. Existing modern steps to rear lightwell increased in size to full width.
Granted Householder Extension Loft or dormer +2 33 docsDomestic -
13 Colnbrook Street London Southwark SE1 6EZ
Internal refurbishment of the building on all floors including repair of historic fabric, damp proof works, new openings and wider openings at Lower Ground Floor, removal of modern bathroom fittings First Floor rear room rmoval of modern partitions at Second Floor level and installation of bathroom. External alterations including widening of the outrigger at Ground Floor level and replacement of the existing window with a new sash window in a wider opening. Widening of opening in rear wall and installation of new timber French doors and replacement of uPVC window with a timber sash. Removal of existing door to the outrigger and filling in of opening with new brickwork to match existing. Installation of a rooflight. Replacement of the mansard windows with doors on the front elevation.
Granted Heritage and listed buildings Extension Loft or dormer +1 33 docs