House, 17 First Street, London, SW3 2LB

This site has had 2 applications since 2025.

• PP/25/05288 Withdrawn

  House, 17 First Street, London, SW3 2LB

  Redevelopment of lower/upper ground maisonette.

  Decided 20 Oct 2025 Full applications

1. 30 Oct 2025

   Received by Kensington and Chelsea

2. 10 Mar 2026

   Decision issued: Accept Non-Material Amendment(s)

3. 20 Jul 2026

   Added to PlanIndex

Kensington and Chelsea has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. More in our guide to what happens after a planning decision.

An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.

• House, 17 First Street, London, SW3 2LB

  PP/25/05288 Submitted 2 Sep 2025 50 yards away

  Redevelopment of lower/upper ground maisonette.

  Withdrawn Full applications 36 docs

• 45 Hasker Street, London, SW3 2LE

  PP/23/00241 Submitted 10 Jan 2023 50 yards away

  Mansard roof extension; installation of air conditioning condenser; replacement of all single glazed sash windows with double glazed sash windows; installation of rainwater downpipe to front fa?ade, metal staircase in front lightwell and windows on lower ground floor to rear facing patio

  Granted Full applications Extension Loft or dormer +1 47 docs

• 3 Hasker Street, London, SW3 2LE

  PP/21/03581 Submitted 2 Jun 2021 50 yards away

  Lowering of lower ground floor and rear garden to create additional head room and provide level access throughout the entire floor and into garden; ground floor window to be replaced with a door to gain access to a single storey roof extension as terrace with black metal railings installed to rear for edge protection. Installation of two rooflights to main roof; flue installed within existing front lightwell.

  Granted Full applications Extension Loft or dormer +1 18 docs
  Small domestic

• 11 Richard's Place, London, SW3 2LA

  PP/20/03410 Submitted 24 Jun 2020 50 yards away

  Construction of single storey basement extension.

  Granted Full applications Extension 32 docs
  Small domestic

• Marlborough, 61 Walton Street, London, SW3 2JU

  ARB/25/04558 Submitted 22 Jul 2025 50 yards away

  Prune 7 x Silver Birch

  Granted Trees 8 docs

• Flat 12A, Marlborough, 61 Walton Street, London, SW3 2JU

  PP/22/01658 Submitted 9 Mar 2022 50 yards away

  Extension to the east to provide additional living space to one bedroom flat.

  Granted Full applications Extension 26 docs

• NMA/26/04056 Awaiting decision

  10 Kensington Palace Gardens, London, W8 4QP

  Non-material amendment to planning permission PP/24/07201 to allow the reintroduction of an internal swimming pool to the lower ground/ undercroft of the main house, including associated works to internal servicing arrangements and spatial arrangement (including the omission of modern piers put forward under the Second Section 73 Application)

  Received 24 Jul, published by the council 3 Aug 2026 Amendments
• NMA/26/04001 Awaiting decision

  Land adjoining 2 Horbury Crescent, London, W11 3NF

  Non-material amendment to planning permission PP/23/08263 (Construction of a two-bedroom residential dwelling across ground and basement levels.) relocation of stairs and internal partitions. Changes to rooflights and terrace areas.

  Received 23 Jul, published by the council 3 Aug 2026 Amendments
• NMA/26/03986 Awaiting decision

  30 Brompton Square, London, SW3 2AE

  Non material amendment to planning permission 26/00660 (Variation of condition 2 (compliance with approved drawings) of planning permission 13/05535 (Redevelopment of lower ground floor in garden, excavation of two basement levels, replacement of glass pavilion, re-landscaping of rear garden and associated alterations) to allow for internal and external alterations to the approved scheme including reconfigured layouts, depths, and floor areas at basement levels 1,2, and 3, alterations to lightwells and introduction of a new lightwell; removal of the secondary staircase in the garden pavilion and the bridge over the rear lightwell and introduction of new york stone stairs at ground floor level; and changes to the lightwell and removal of the bridge at first floor level.) to remove the word 'glass' from the description above; i.e. (Variation of condition 2 (compliance with approved drawings) of planning permission 13/05535 (Redevelopment of lower ground floor in garden, excavation of two basement levels, replacement of pavilion, re-landscaping of rear garden and associated alterations) to allow for internal and external alterations to the approved scheme including reconfigured layouts, depths, and floor areas at basement levels 1,2, and 3, alterations to lightwells and introduction of a new lightwell; removal of the secondary staircase in the garden pavilion and the bridge over the rear lightwell and introduction of new york stone stairs at ground floor level; and changes to the lightwell and removal of the bridge at first floor level.)

  Received 22 Jul, published by the council 1 Aug 2026 Amendments
• NMA/26/02562 Decided

  Treadgold House, 25 Bomore Road, London, W11 4HD

  Non-material amendment to planning permission PP/23/02367 dated 22 November 2022 (Alterations to existing facades including: installation of new external insulation system, replacement of all existing windows, works to balconies including addition of louvred shading, installation of new ground floor communal external doors and canopy; Alterations at roof level including:removal and replacement of roof system and guarding, construction of new parapet upstand, installation of photovoltaic panels; Replacement of all rainwater goods (amended description).) to allow the addition of a 2100 mm Width x 800 mm Deep x 1600 mm Height GRP white enclosure located to the South Elevation at Ground Floor Level; addition of No3 satellite grey dishes 775mm x 775mm with non-penetrating roof mount 1200mm x 1200mm located on the roof; revised ASHP pipework arrangement; and addition of No3 maintenance access step units (galvanised non-combustible stairs.

  Received 8 May, published by the council 1 Aug 2026 Amendments
• NMA/26/02178 Withdrawn

  17-19 Cottesmore Gardens, London, W8 5PR

  Non-material amendment to planning permission PP/24/01317 to allow design updates, including revisions to the demolition drawings, removal of planters from non-accessible terraces and modifications to skylights and dry riser inlets

  Received 13 Apr, published by the council 20 Jul 2026 Amendments