Basement Flat, 17-19 Powis Terrace, London, W11 1JJ

1. 11 Jun 2026

   Received by Kensington and Chelsea

2. 17 Jul 2026

   Decision issued: Grant Planning Permission/Consent

3. 20 Jul 2026

   Added to PlanIndex

Kensington and Chelsea granted permission on 17 July 2026, 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.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 18-22 Powis Terrace, London, W11 1JH

  PP/25/04589 Submitted 22 Jul 2025 23m away

  Change of use of residential annexe to provide a separate dwelling; installation of air source heat pump and additional rooftop photovoltaic solar panels.

  Granted Full applications 41 docs
  Domestic

• Tavistock Mansions, 49 St Luke's Road, London, W11

  OB/25/05477 Submitted 12 Sep 2025 37m away

  This Council is asked for its observations on an application submitted to Westminster City Council for: Erection of a mansard roof extension to create two new residential units

  Granted Extension Loft or dormer 5 docs

• Flat 16A, Hedgegate Court, Powis Terrace, London, W11 1JD

  PP/26/01893 Submitted 19 Mar 2026 41m away

  The installation of replacement windows and doors to the front and rear elevations.

  Granted Full applications Windows or glazing 18 docs

• 4-5 Powis Mews, London, W11 1JN

  PP/21/03233 Submitted 18 May 2021 43m away

  Covering of existing roof terrace with a glass structure.

  Refused Full applications 10 docs

• Third Floor, 17 Powis Mews, London, W11 1JN

  CL/25/06909 Submitted 17 Nov 2025 43m away

  Installation of Air Source Heat Pump to replace existing electrical hot water heating system (Certificate of Lawful Proposed Development/Use).

  Granted Lawful development 12 docs

• Third Floor, 17 Powis Mews, London, W11 1JN

  CL/25/06815 Submitted 17 Nov 2025 43m away

  96% historically approved · decision due ~12 Jan

  Replacement of existing electrical hot water heating system for an air source heat pump. (Certificate of Proposed Development/Use)

  Awaiting decision Lawful development 8 docs

• CL/26/01267 Granted

  1 Bray Place, London, SW3 3LL

  Confirmation that the existing structure at no. 27 Coulson Street / 1 Bray Place was built in the early 1970s as a single development over three floors (basement to first floor) after the demolition of a previous infill building in 1971 (Certificate of Lawful Existing Use)

  9 Mar 2026 Lawful development
• CL/26/02700 Granted

  27 Lansdowne Road, London, W11 3AG

  Provision of lead flashing to parapet/cornice lines and painting of windows and existing painted areas of the building in soft white (Certificate of Proposed Use/Development).

  19 May 2026 Lawful development
• CL/26/02515 Granted

  Flats A and C, 61 Holland Park, London, W11 3SJ

  Reconfiguration of the accommodation at Flat A and Flat C to create one four-bed dwelling and one one-bed dwelling (Certificate of Lawful Proposed Development / Use)

  6 May 2026 Lawful development
• CL/26/03998 Awaiting decision

  87 Addison Road, London, W14 8ED

  Confirmation that the existing A/C Units & Screening to the north and south sides on the flat roofs at ground and first floor levels are lawful (Certificate of Lawful Existing Use/Development)

  23 Jul 2026 Lawful development
• CL/26/04000 Awaiting decision

  191 Freston Road, London, W10 6TH

  Confirmation that the use of the property as Class F1(a) (Education) is lawful (Certificate of Lawful Existing Use/Development)

  23 Jul 2026 Lawful development