82A Chiltern Street London W1U 5AQ

This site has had 2 applications since 2026.

• 26/07231/ADFULL Awaiting decision

  82A Chiltern Street London W1U 5AQ

  Detailed drawings showing the following alteration to the scheme - the inclusion of a rainwater harvesting system in line with the DAS Addendum Page 57 pursuant to condition 4 of planning permission dated 30.10.2023 (RN:23/03464/FULL)

  Submitted 22 Oct 2026

1. 23 Oct 2026

   Received by Westminster

2. 29 Oct 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 18 December 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Westminster took a median of 88 days over the applications it decided in the last year.

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided lawful development applications in a median of 107 days. More in our guide to how long planning decisions take.

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.

• 82A Chiltern Street London W1U 5AQ

  26/07231/ADFULL Submitted 22 Oct 2026 50 yards away

  89% historically approved · decision due ~17 Dec

  Detailed drawings showing the following alteration to the scheme - the inclusion of a rainwater harvesting system in line with the DAS Addendum Page 57 pursuant to condition 4 of planning permission dated 30.10.2023 (RN:23/03464/FULL)

  Awaiting decision

• 7 York Mansions Chiltern Street London W1U 5AL

  03/04543/FULL Submitted 10 Jun 2003 50 yards away

  Installation of boiler flue, ventilation extract and replacement of rear window at first floor level.

  Granted Full applications Windows or glazing 6 docs

• 7 York Mansions Chiltern Street London W1U 5AL

  03/04432/LBC Submitted 6 Jun 2003 50 yards away

  Alterations including division of window to balcony at rear, installation of gas and electric meters and boiler flue extractor fan outlets on balcony, modifications to internal layout and new front door.

  Decided Heritage and listed buildings Windows or glazing 5 docs

• York Mansions Chiltern Street London W1U 5AL

  23/00263/NMA Submitted 16 Jan 2023 50 yards away

  Amendments to planning permission dated 15th July 2021 (RN: 21/03563/COFUL) for 'replacement of 6 flat entrance doors with compliant fire doors' NAMELY, alteration in style of the proposed doors and replacement of additional doors.

  Granted Amendments 24 docs
  Several homes

• 1 Sherlock Mews London W1U 6DW

  25/09081/ADFULL Submitted 15 Dec 2025 50 yards away

  Details of windows, doors, parapet gutter and leadwork details pursuant to conditions 4 and 5 of planning permission dated 13th November 2024 (RN: 24/03975/FULL)

  Granted Full applications Windows or glazing 7 docs

• Flat 4b Block 4 Portman Mansions Chiltern Street London W1U 6NS

  26/01860/FULL Submitted 23 Mar 2026 50 yards away

  88% historically approved · decision due ~2 Jun

  Like for like replacement of nine windows at lower ground floor level.

  Awaiting decision Full applications Windows or glazing 11 docs

• 26/07339/CLOPUD Awaiting decision

  123 Victoria Street London SW1E 6DE

  Use of part of ground floor reception area within Class E including, but not limited to, a retail café (Class E(a)).

  Received 27 Oct, published by the council 30 Oct 2026 Lawful development
• 26/07345/CLOPUD Awaiting decision

  New Scotland Yard Victoria Embankment London SW1A 2JL

  Installation of Solar Gard Stainless Steel 20 solar control film to the internal face of the existing fifth-floor glazing.

  Received 27 Oct, published by the council 30 Oct 2026 Lawful development
• 26/07293/CLOPUD Awaiting decision

  4 Kildare Gardens London W2 5LU

  Installation of one air source heat pump on the ground in the rear garden, about 447mm from the southern boundary fence and 5612 mm from the rear wall of the building, mounted on anti-vibration feet on stone pavers, with no enclosure or housing. Includes insulated flow and return pipework and a power supply into the lower ground floor plant room. Proposed as permitted development under Schedule 2, Part 14, Class G of the GPDO 2015 (as amended).

  Received 26 Oct, published by the council 29 Oct 2026 Lawful development
• 26/07294/CLOPUD Awaiting decision

  6 - 7 Clifford Street London W1S 2FT

  Installation of a new glazed door and associated glazing infill at fifth-floor terrace level, with glazing to match the existing.

  Received 26 Oct, published by the council 28 Oct 2026 Lawful development
• 26/07221/CLEUD Awaiting decision

  Ground Floor Flat A 31 Fermoy Road London W9 3NH

  Confirmation of the lawful existing Use of Unit A, 31 Fermoy Road as a 4-bedroom HMO (Class C4).

  Received 21 Oct, published by the council 23 Oct 2026 Lawful development