Planning application
26/00446/FUL
4 Steep Hill London Lambeth SW16 1UL
Proposal
Demolition of existing rear extension and erection of a single-storey rear extension with flat roof, incorporating two rooflights, one rear-facing window, and one rear-facing door; installation of a frosted window to the side elevation of the extension; and formation of a new side access door to the main dwelling.
As published by the council, reference 26/00446/FUL
Timeline
Dates from the published record
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11 Feb 2026
Received by Lambeth
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7 Apr 2026
Decision issued: Grant Permission
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25 Jul 2026
Added to PlanIndex
What a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
About full applications applications
How this application type works
A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.
Nearby applications
Within 500 metres
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11/02717/TPO Granted
23 Becmead Avenue London SW16 1UN
To crown thin 1 x Copper Beech tree to rear of property by 15% and lift canopy to 5 metres.
-
15/04064/TPO Granted
23 Becmead Avenue London SW16 1UN
To remove 1 x Copper Beech tree to rear of property (Reason: the tree is dying/ in decline / Honey Fungus infection).
-
09/04238/DET Granted
23 Becmead Avenue London SW16 1UN
Approval of details pursuant to condition 5 (Cycle Storage) of planning permission ref 07/04717/FUL (Conversion of single dwelling house into four self contained units (3 x 2-bedroom and 1 x 2-bed maisonette) along with formation of rear dormer window and alterations to windows and doors within side elevation and provision of 2 on site car parking spaces) Granted on 12.02.2008.
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09/04239/DET Granted
23 Becmead Avenue London SW16 1UN
Approval of details pursuant to condition 3 (Recycling Storage) of planning permission ref 07/04717/FUL (Conversion of single dwelling house into four self contained units (3 x 2-bedroom and 1 x 2-bed maisonette) along with formation of rear dormer window and alterations to windows and doors within side elevation and provision of 2 on site car parking spaces) Granted on 12.02.2008.
-
09/02649/DET Granted
9 Becmead Avenue London SW16 1UN
Approval of details pursuant to condition 3 (Detailed drawings to an appropriate scale of doors, windows and railings and privacy screens to the terrace and lightwells) of Planning Permission ref: 07/04089/FUL (Conversion of existing single dwellinghouse into 6 self-contained flats (2 x 3 bedroom, 2 x 2 bedroom and 2 x 1 bedrooms units) involving excavation and enlargement of existing basement and installation of front and side light-wells, railings and the erection of lower ground and ground floor 2 storey rear extension together with a loft conversion including the erection of a side dormer and installation of 1 front rooflight and 3 rear rooflights. Installation of new windows to the front, side and rear elevations at basement and ground floor levels, removal of a rear window and formation of new entrances on the Ockley Road frontage) granted on 16.06.08
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09/02653/DET Granted
9 Becmead Avenue London SW16 1UN
Approval of Details pursuant to condition 8 (Provision of privacy screens to the ground floor terraced area at the rear and to the lightwells at side and in the front garden at ground floor level) of Planning Permission ref: 07/04089/FUL (Conversion of existing single dwellinghouse into 6 self-contained flats (2 x 3 bedroom, 2 x 2 bedroom and 2 x 1 bedrooms units) involving excavation and enlargement of existing basement and installation of front and side light-wells, railings and the erection of lower ground and ground floor 2 storey rear extension together with a loft conversion including the erection of a side dormer and installation of 1 front rooflight and 3 rear rooflights. Installation of new windows to the front, side and rear elevations at basement and ground floor levels, removal of a rear window and formation of new entrances on the Ockley Road frontage) granted on 16.06.08
Other full applications applications
In Lambeth
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26/01656/FUL Refused
130 Landor Road London SW9 9JB
Replacement of an existing first floor front window with double doors to provide access onto the existing flat roof.
-
26/01266/FUL Granted
255 Coldharbour Lane London SW9 8RP
Replacement of single-glazed timber French doors and flanking casements with double-glazed timber French doors and flanking casements and repair of all remaining windows and doors (Flat A).
-
26/01706/FUL Granted
10 Francis Bentley Mews London SW4 0EG
Erection of a two-storey side extension incorporating a ground-floor car port, with a flat roof incorporating solar photovoltaic panels, together with the insertion of a new external door in the existing ground-floor side elevation.
-
26/01328/FUL Refused
1 White Hart Street London SE11 4EP
Subdivision of the existing single residential unit into 2 self-contained residential units (Use Class C3), together with erection of a partial ground floor rear extension, associated fenestration alterations, provision of bin and cycle storage, and other associated works.
-
26/01242/FUL Granted
25 Cavendish Road London Lambeth SW12 0BH
Erection of a single storey ground floor rear extension and the conversion of the garage into a habitable room including the replacement of the garage door with windows.