17 Alexander Street London W2 5NT

1. 30 Jul 2026

   Received by Westminster

2. 9 Aug 2026

   Added to PlanIndex

The council has decided this application; the published outcome sits in the record above and the decision notice on the council portal carries the detail, including any conditions.

If permission was granted, work must normally begin within three years of the decision. If it was refused, the applicant can appeal within the statutory time limit or submit a revised scheme.

This page mirrors an entry on the statutory planning register that Westminster is required to keep. The published feed for this record does not state which type of application it is, which is common for older entries and for some council systems; the register entry on the council portal will say, alongside the case officer and any consultation dates.

Every planning application follows the same broad path: submission, validation, publicity, then a decision by officers or committee. Our guide to planning application types explains the common types and what each can approve.

• 17 Alexander Street London W2 5NT

  20/08026/TCA Submitted 16 Dec 2020 11m away

  T1 Cherry: crown reduce by 25%. Remove decayed branch over driveway.

  Granted Trees 2 docs

• 17 Alexander Street London W2 5NT

  25/08229/FULL Submitted 11 Nov 2025 11m away

  87% historically approved · decision due ~6 Jan

  Full width rear extension at lower ground floor; full height double glazed door and a new window across the lower ground floor elevation; new balcony spanning the width of the property at raised ground floor level at the rear, with a new stair from balcony to garden level; new glazed door within the closet wing rear elevation at raised ground floor; new glazed door to the terrace from the house at raised ground floor; new timber sash window within the closet wing; new railing and glazed door above closet wing at first floor - second floor half landing level; modifications to the mansard roof to accommodate photovoltaic panels and plant equipment; modifications to the front lightwell including replacement of the metal railings at ground floor and inclusion of a gate; new period detailed doors and windows to the lower ground front lightwell; and landscaping works to the rear garden.

  Awaiting decision Full applications Extension Loft or dormer +1 47 docs

• 18 Alexander Street London W2 5NT

  25/09034/FULL Submitted 12 Dec 2025 17m away

  87% historically approved · decision due ~6 Feb

  Variation of condition 1 of planning permission dated 7th August 2025 (RN: 25/03483/FULL) for the Lower ground floor rear extension, ground floor glazed infill extension adjacent to the closet wing, with balcony and new staircase from balcony to garden level; closet wing extended vertically to create an additional storey, new sash windows to closet wing and replacement of dormer window with doors to rear mansard roof. Namely, Removal of the central masonry pier introduced during the determination of the original application

  Awaiting decision Full applications Extension Loft or dormer +1 11 docs

• 18 Alexander Street London W2 5NT

  26/00025/FULL Submitted 5 Jan 2026 17m away

  Installation of 6no photovoltaic panels and an acoustic enclosure housing 2no condenser units on the roof.

  Refused Full applications 21 docs

• 29 Alexander Street London W2 5NU

  25/06962/P3JPA Submitted 29 Sep 2025 34m away

  Notification for Prior Approval for the change of use from a Class E commercial, business and service use to a residential dwelling at 29 Alexander Street under the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) Schedule 2, Part 3, Class MA.

  Granted Prior approval 17 docs
  Domestic

• 31 Alexander Street London W2 5NU

  25/07099/FULL Submitted 2 Oct 2025 38m away

  Erection of a single storey rear extension at second floor level (above conservatory) and use of roof as a terrace.

  Refused Full applications Extension 19 docs
  Small domestic