Lowering of lower ground floor level, construction of single storey rear extension at lower ground floor level, construction of rear infill extension at ground floor level with terrace above, with elevational alterations. Replacement of windows with double glazed units. Reconfiguration of front entrance steps to provide access to lower ground floor level. Replacement of front railings, and front terrace railings with metal balustrade. Internal reconfiguration of the two flats. Creation of a roof terrace with the provision of two condensers within an acoustic enclosure at main roof level.
Basement Flat, 3 Lancaster Road and 3 Lancaster Road, London, W11 1QL · premises record
Details required by Condition 6 (Trees and landscaping) of planning permission 25/05291 (Extension of closet wing across all floors to match rearwards projection of neighbouring properties; lowering of lower ground floor level; erection of a single storey rear extension at lower ground floor level; erection of a rear infill at ground floor level; elevational alterations; replacement of windows with double glazed units; reconfiguration of front entrance steps to create independent access to lower ground floor level; replacement of front railings; internal reconfiguration of two flats and provision of two condenser units within an acoustic enclosure at main roof level. (Works are the same as approved under PP/25/04111 save for the provision of 2no. AC units at main roof level))
Details required by Condition 6 (Trees and landscaping) of planning permission 25/05289 (Extension of closet wing across all floors to match rearwards projection of neighbouring properties; lowering of lower ground floor level; construction of a single storey rear extension at lower ground floor level; construction of a rear infill at ground floor level; installation of metal doors and Juliet balcony at rear ground and first floor level; replacement of windows throughout with double glazed timber units; reconfiguration of front entrance steps to allow access to lower ground floor level; replacement of front railings; internal reconfiguration of two flats; creation of a roof terrace at main roof level with an openable rooflight to facilitate access)
Alterations to rear window and doors to raised and lower ground floor rear fa?ade. Alterations to lower ground floor rear extension enclosure and rear garden staircase. Installation of small roof-light above raised ground floor rear closet wing. Replacement of defective glass roof with pitched slate roof and new skylights to replace existing skylight. Replacement of windows throughout with thermal sash windows to match existing.
Details required by Condition 6 (Trees and landscaping) of planning permission PP/25/04111 (Extension of closet wing across all floors to match depth of neighbouring properties. Lowering of lower ground floor level. Construction of single storey rear extension at lower ground floor level. Construction of rear infill at ground floor level. New metal doors and Juliet balcony at rear ground and first floor level. Replacement of windows throughout with double glazed timber units. Reconfiguration of front entrance steps to allow access to lower ground floor level. Replacement of front railings. Internal reconfiguration of two flats)
Flats A and B, 3 Lancaster Road, London, W11 1QL · premises record
Extension of closet wing across all floors to match rearwards projection of neighbouring properties; lowering of lower ground floor level; erection of a single storey rear extension at lower ground floor level; erection of a rear infill at ground floor level; elevational alterations; replacement of windows with double glazed units; reconfiguration of front entrance steps to create independent access to lower ground floor level; replacement of front railings; internal reconfiguration of two flats and provision of two condenser units within an acoustic enclosure at main roof level. (Works are the same as approved under PP/25/04111 save for the provision of 2no. AC units at main roof level).
Extension of closet wing across all floors to match rearwards projection of neighbouring properties; lowering of lower ground floor level; construction of a single storey rear extension at lower ground floor level; construction of a rear infill at ground floor level; installation of metal doors and Juliet balcony at rear ground and first floor level; replacement of windows throughout with double glazed timber units; reconfiguration of front entrance steps to allow access to lower ground floor level; replacement of front railings; internal reconfiguration of two flats; creation of a roof terrace at main roof level with an openable rooflight to facilitate access.
Extension of closet wing across all floors to match depth of neighbouring properties. Lowering of lower ground floor level. Construction of single storey rear extension at lower ground floor level. Construction of rear infill at ground floor level. New metal doors and Juliet balcony at rear ground and first floor level. Replacement of windows throughout with double glazed timber units. Reconfiguration of front entrance steps to allow access to lower ground floor level. Replacement of front railings. Internal reconfiguration of two flats.
Flats A and B, 3 Lancaster Road, London, W11 1QL · premises record
Lowering of lower ground floor level, construction of single storey rear extension at lower ground floor level, construction of rear infill extension at ground floor level with terrace above, with elevational alterations. Replacement of windows with double glazed units. Reconfiguration of front entrance steps to provide access to lower ground floor level. Replacement of front railings, and front terrace railings with metal balustrade. Internal reconfiguration of the two flats. Creation of a roof terrace with the provision of two condensers within an acoustic enclosure at main roof level.
Basement Flat, 3 Lancaster Road and 3 Lancaster Road, London, W11 1QL · premises record
Details required by Condition 6 (Trees and landscaping) of planning permission 25/05291 (Extension of closet wing across all floors to match rearwards projection of neighbouring properties; lowering of lower ground floor level; erection of a single storey rear extension at lower ground floor level; erection of a rear infill at ground floor level; elevational alterations; replacement of windows with double glazed units; reconfiguration of front entrance steps to create independent access to lower ground floor level; replacement of front railings; internal reconfiguration of two flats and provision of two condenser units within an acoustic enclosure at main roof level. (Works are the same as approved under PP/25/04111 save for the provision of 2no. AC units at main roof level))
Details required by Condition 6 (Trees and landscaping) of planning permission 25/05289 (Extension of closet wing across all floors to match rearwards projection of neighbouring properties; lowering of lower ground floor level; construction of a single storey rear extension at lower ground floor level; construction of a rear infill at ground floor level; installation of metal doors and Juliet balcony at rear ground and first floor level; replacement of windows throughout with double glazed timber units; reconfiguration of front entrance steps to allow access to lower ground floor level; replacement of front railings; internal reconfiguration of two flats; creation of a roof terrace at main roof level with an openable rooflight to facilitate access)
Alterations to rear window and doors to raised and lower ground floor rear fa?ade. Alterations to lower ground floor rear extension enclosure and rear garden staircase. Installation of small roof-light above raised ground floor rear closet wing. Replacement of defective glass roof with pitched slate roof and new skylights to replace existing skylight. Replacement of windows throughout with thermal sash windows to match existing.
Details required by Condition 6 (Trees and landscaping) of planning permission PP/25/04111 (Extension of closet wing across all floors to match depth of neighbouring properties. Lowering of lower ground floor level. Construction of single storey rear extension at lower ground floor level. Construction of rear infill at ground floor level. New metal doors and Juliet balcony at rear ground and first floor level. Replacement of windows throughout with double glazed timber units. Reconfiguration of front entrance steps to allow access to lower ground floor level. Replacement of front railings. Internal reconfiguration of two flats)
Flats A and B, 3 Lancaster Road, London, W11 1QL · premises record
Extension of closet wing across all floors to match rearwards projection of neighbouring properties; lowering of lower ground floor level; erection of a single storey rear extension at lower ground floor level; erection of a rear infill at ground floor level; elevational alterations; replacement of windows with double glazed units; reconfiguration of front entrance steps to create independent access to lower ground floor level; replacement of front railings; internal reconfiguration of two flats and provision of two condenser units within an acoustic enclosure at main roof level. (Works are the same as approved under PP/25/04111 save for the provision of 2no. AC units at main roof level).
Extension of closet wing across all floors to match rearwards projection of neighbouring properties; lowering of lower ground floor level; construction of a single storey rear extension at lower ground floor level; construction of a rear infill at ground floor level; installation of metal doors and Juliet balcony at rear ground and first floor level; replacement of windows throughout with double glazed timber units; reconfiguration of front entrance steps to allow access to lower ground floor level; replacement of front railings; internal reconfiguration of two flats; creation of a roof terrace at main roof level with an openable rooflight to facilitate access.
Extension of closet wing across all floors to match depth of neighbouring properties. Lowering of lower ground floor level. Construction of single storey rear extension at lower ground floor level. Construction of rear infill at ground floor level. New metal doors and Juliet balcony at rear ground and first floor level. Replacement of windows throughout with double glazed timber units. Reconfiguration of front entrance steps to allow access to lower ground floor level. Replacement of front railings. Internal reconfiguration of two flats.
Flats A and B, 3 Lancaster Road, London, W11 1QL · premises record
Building-control records are not yet collected for Kensington And Chelsea — the register is being gathered borough by borough (held so far: Lambeth, Brent, Ealing, Westminster, City and others).
Place
What affects it?
Every mapped designation touching a premises in this postcode, with how many of its 41 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 - No 100 · reference 79 · covers 41 of 41 premises. Some normally permitted changes may require planning permission.
Conservation Area
Colville · reference 38 · covers 41 of 41 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Tree Preservation Zone
Named designation not supplied · reference 38 · covers 41 of 41 premises. Protected-tree works may require consent or formal notice.
Article 4 Direction Area
Article 4 - No 100 · reference 79 · covers 41 of 41 premises. Some normally permitted changes may require planning permission.
Conservation Area
Colville · reference 38 · covers 41 of 41 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Tree Preservation Zone
Named designation not supplied · reference 38 · covers 41 of 41 premises. Protected-tree works may require consent or formal notice.
Nearby postcodes and streets
Walk to the next area — linked where the Atlas has a record for it (pilot borough only for now).
Planning precedent24 applications and 24 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy22 EPC records; ratings C: 7, D: 14, E: 1.
What is not assertedNo capacity, value or ownership claim is made at area level; those belong to individual premises records and their evidence.
Intent signals
Planning Atlas Pro
Ownership, finance and market signals recorded at addresses in this postcode — each with date and source. Signals are evidence of change, not a prediction.
No intent signal is currently recorded in this postcode.
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.
W11 1QL, Kensington And Chelsea: Planning and Property History | Planning Atlas