Skip to content
PlanIndex Get alerts
Menu

Planning application

Investcorp House 48 Grosvenor Street London W1K 3HW

Awaiting decision Westminster 26/01687/FULL Full Planning Permission Application

Works: Extension

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Infill of vehicle garage access on Mount Row, infill of lightwell and skylights at ground floor level, renewing glass facade of link building, new plant on roof.

As published by the council, reference 26/01687/FULL

Application record

Reference
26/01687/FULL
Type
Full Planning Permission Application
Status
Pending
Received
16 Mar 2026
Validated
16 Mar 2026
Ward
West End
Postcode
W1K 3HW

Timeline

Dates from the published record

  1. 16 Mar 2026

    Received by Westminster

  2. 21 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 11 May 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 65 days over the applications it decided in the last year.

Who's behind it

Company information only, from the register and Companies House

Newmark LLP Agent

981 applications on PlanIndex · across 40 councils · 97% granted

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

Documents

Plans, drawings, consultee responses and the officer's report

50 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Watch members (£5 a month) open the document list from here.

Open the documents

What happens while it is decided

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided full applications in a median of 91 days. More in our guide to how long planning decisions take.

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 0.3 miles

  • 50 Grosvenor Street London

    26/03477/LBC Submitted 27 May 2026 50 yards away

    90% historically approved · decision due ~22 Jul

    Minor internal works at ground and first floor levels to refurbish and fit-out office accommodation (revised submission of application ref. 26/00764/LBC).

    Awaiting decision Heritage and listed buildings 33 docs

  • 50 Grosvenor Street London

    26/00764/LBC Submitted 9 Feb 2026 50 yards away

    Internal works at ground and first floor levels to refurbish and fit-out office accommodation.

    Refused Heritage and listed buildings 47 docs

  • 50 Grosvenor Street London

    25/08357/LBC Submitted 14 Nov 2025 50 yards away

    Internal alterations at lower ground, ground, first, second, third and fourth floors.

    Granted Heritage and listed buildings 73 docs

  • 50 Grosvenor Street London

    26/00754/LBC Submitted 9 Feb 2026 50 yards away

    Creation of internal structural opening at ground floor level to provide access between 50 and 51 Grosvenor Street.

    Refused Heritage and listed buildings 18 docs

  • 30 Mount Row London W1K 3SH

    20/05838/ADFULL Submitted 17 Sep 2020 50 yards away

    Detailed drawing of each different type of window, external door and perforated screens at front fifth floor level pursuant to conditions 11 and 25 of planning permission dated 29th November 2017 (RN:17/06081).

    Granted Full applications Windows or glazing 7 docs

  • 30 Mount Row London W1K 3SH

    20/05841/ADFULL Submitted 17 Sep 2020 50 yards away

    Details of the installation of 8 off-street cycle parking spaces for the residential part of the development, cycle parking spaces for the retail part of the development and the location of the off-street cycle parking for the retail part of the development pursuant to conditions 4 and 5 of planning permission dated 29th November 2011 (RN:17/06081).

    Granted Full applications 8 docs

In Westminster

  • 26/06295/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Installation of a new shopfront.

    Received 15 Sep, published by the council 17 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.

    Received 15 Sep, published by the council 17 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))

    Received 11 Sep, published by the council 18 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)

    Received 11 Sep, published by the council 18 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)

    Received 1 Jun, published by the council 11 Sep 2026 Full applications