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Planning application

19 Cumberland Street London SW1V 4LS

Decided Westminster 26/03969/FULL Full applications

Decided. The decision notice on the council portal carries the outcome in full, including any conditions.

Proposal

Installation of air conditioning unit and associated acoustic housing located at roof level.

As published by the council, reference 26/03969/FULL

Application record

Reference
26/03969/FULL
Category
Full applications
Status
Decided
Received
16 Jun 2026
Validated
16 Jun 2026
Postcode
SW1V 4LS

Site history

Applications at this address on the Westminster register

This site has had 4 applications since 2025: 1 approved, 0 refused.

  • 26/06251/NMA Awaiting decision

    19 Cumberland Street London SW1V 4LS

    Amendments to planning permission dated 20th March 2026 (RN:25/08960/FULL) for Lower ground floor rear infill extension with terrace above, replacement of rear first floor conservatory, new roof level rear single dormer with access to third floor roof terrace, alterations to windows and external refurbishment, namely the change of conservatory gable roof to a flat GRP roof.

    Submitted 11 Sep 2026 Amendments
  • 26/03499/ADFULL Awaiting decision

    19 Cumberland Street London SW1V 4LS

    Detailed Drawings of new external windows and doors; new dormer window showing relationship with the roof and new rear extensions including materials specification pursuant to condition 4 a, b, c of planning permission dated 10th March 2026 (RN 25/08960/FULL)

    Submitted 28 May 2026 Full applications
  • 25/08960/FULL Granted

    19 Cumberland Street London SW1V 4LS

    Lower ground floor rear infill extension with terrace above, replacement of rear first floor conservatory, new roof level rear single dormer with access to third floor roof terrace, alterations to windows and external refurbishment.

    Decided 20 Mar 2026 Full applications

Timeline

Dates from the published record

  1. 16 Jun 2026

    Received by Westminster

  2. 21 Jul 2026

    Added to PlanIndex

  3. 9 Aug 2026

    Status changed to Decided

    Previously Pending.

After the decision

Westminster 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.

About full applications

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 19 Cumberland Street London SW1V 4LS

    26/06251/NMA Submitted 11 Sep 2026 0m away

    93% historically approved · decision due ~6 Nov

    Amendments to planning permission dated 20th March 2026 (RN:25/08960/FULL) for Lower ground floor rear infill extension with terrace above, replacement of rear first floor conservatory, new roof level rear single dormer with access to third floor roof terrace, alterations to windows and external refurbishment, namely the change of conservatory gable roof to a flat GRP roof.

    Awaiting decision Amendments Extension Loft or dormer +2
  • 19 Cumberland Street London SW1V 4LS

    26/03499/ADFULL Submitted 28 May 2026 0m away

    87% historically approved · decision due ~23 Jul

    Detailed Drawings of new external windows and doors; new dormer window showing relationship with the roof and new rear extensions including materials specification pursuant to condition 4 a, b, c of planning permission dated 10th March 2026 (RN 25/08960/FULL)

    Awaiting decision Full applications Extension Loft or dormer +1 10 docs
  • 19 Cumberland Street London SW1V 4LS

    25/08960/FULL Submitted 9 Dec 2025 4m away

    Lower ground floor rear infill extension with terrace above, replacement of rear first floor conservatory, new roof level rear single dormer with access to third floor roof terrace, alterations to windows and external refurbishment.

    Granted Full applications Extension Loft or dormer +2 33 docs
  • 9 Cumberland Street London SW1V 4LS

    22/02379/CLEUD Submitted 7 Apr 2022 19m away

    Use of a ground floor unit as a studio flat.

    Refused Lawful development 17 docs
  • Cumberland Court Cumberland Street London SW1V 4LR

    26/01637/FULL Submitted 13 Mar 2026 38m away

    87% historically approved · decision due ~8 May

    Variation of condition 1 of planning permission dated 10th July 2012 (RN 12/03613/FULL) which itself varied condition 1 of planning permission dated 25 November 2010 (RN: 10/02562) for: "Erection of single storey extension at fourth floor roof level in connection with provision of one residential flat, and erection of lift shaft within internal lightwell from basement to fourth floor leve". NAMELY, amendments to allow internal layout alterations; the introduction of new slot windows; change in external material from the approved aluminium composite cladding to a silicone render of a similar colour; and alteration to the roof form raising the roof height adjacent to the party walls to and a reduction in overhang.

    Awaiting decision Full applications Extension Windows or glazing 27 docs
    Small domestic
  • 65 Winchester Street London SW1V 4NU

    25/09341/TPO Submitted 24 Dec 2025 50m away

    1 x sycamore (T1): crown reduce by approx. 2-3m; to previous most recent reduction points.

    Granted Trees 7 docs

In Westminster

  • 26/06295/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Installation of a new shopfront.

    15 Sep 2026 Full applications
  • 26/06297/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Alterations to rear elevation at basement level comprising repolacement window and installation of double opening door.

    15 Sep 2026 Full applications
  • 26/06234/FULL Awaiting decision

    40 Grosvenor Place London SW1X 7HJ

    Use of lower ground floor of Unit 3 and ground floor of Unit 2 as gym (Class E(d)) and/ or office (Class E(g))

    11 Sep 2026 Full applications
  • 26/06249/FULL Awaiting decision

    53 Wimpole Street London W1G 8YH

    Removal and Installation of external rear air condensers and associated pipe work to ground floor, including internal works to ground and first floor. (Linked with 26/06250/LBC)

    11 Sep 2026 Full applications
  • 26/03576/FULL Decided

    15A Devonshire Terrace London W2 3DW

    Erection of an infill extension to basement courtyard to form new bedroom and internal alterations. (Linked with 26/03577/LBC)

    1 Jun 2026 Full applications