Planning application
Flat 7 37 Chesham Place London SW1X 8HB
Works: Windows or glazing
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Installation of metal railings and replacement of window with door in association with use of front second floor flat roof as a terrace (Lowndes Place elevation). (Linked with 26/03252/LBC)
As published by the council, reference 26/03251/FULL
Application record
- Reference
- 26/03251/FULL
- Type
- Full Planning Permission Application
- Status
- Pending
- Received
- 18 May 2026
- Validated
- 21 May 2026
- Ward
- Knightsbridge & Belgravia
- Postcode
- SW1X 8HB
Site history
Applications at this address on the Westminster register
This site has had 2 applications since 2026.
-
26/03252/LBC Awaiting decision
Flat 7 37 Chesham Place London SW1X 8HB
Installation of metal railings and replacement of window with door in association with use of front second floor flat roof as a terrace (Lowndes Place elevation) (Linked with 26/03251/FULL).
Timeline
Dates from the published record
-
18 May 2026
Received by Westminster
-
21 May 2026
Validated
Checked as complete and ready for consideration.
-
21 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 16 July 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 66 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
Maddox Planning Ltd Agent, a planning consultancy
113 applications on PlanIndex · across 19 councils · 89% 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 recordDocuments
Plans, drawings, consultee responses and the officer's report
19 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 documentsWhat 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
-
Flat 7 37 Chesham Place London SW1X 8HB
90% historically approved · decision due ~16 Jul
Installation of metal railings and replacement of window with door in association with use of front second floor flat roof as a terrace (Lowndes Place elevation) (Linked with 26/03251/FULL).
Awaiting decision Heritage and listed buildings Windows or glazing 3 docs -
39 Chesham Place London SW1X 8SB
90% historically approved · decision due ~14 Jul
Installation of a telecommunications cable within a Grade II listed building to provide fibre connectivity
Awaiting decision Heritage and listed buildings 8 docs -
2A Lyall Mews London SW1X 8DJ
87% historically approved · decision due ~6 May
External alterations including: lowering of window openings at first floor on the front elevation and introduction of Juliet balconies, replacement of garage door, new rooflight, upgrades to the fenestration to front and rear and rebuilding of front entrance steps.
Awaiting decision Full applications Loft or dormer Windows or glazing 28 docs -
2A Lyall Mews London SW1X 8DJ
89% historically approved · decision due ~3 Nov
detailed drawings showing amended proposals for the first floor front elevation's fenestration (please see Informative 3.), including revised proposed front elevation and first floor plan (at 1:50), and detailed 1:10 elevations and 1:5 and 1:2 sections (through head, jamb, cill, meeting rail and glazing bars) and detailed drawings (at 1:10) and sections (at 1:5) of the replacement garage door, replacement rooflight, any replacement windows other than the first-floor front elevation fenestration, Juliet balconies and associated metalwork and rebuilt front entrance steps pursuant to condition 4 and 5 of planning permission dated 16th April 2026 (RN:26/01406/FULL)
Awaiting decision Loft or dormer Windows or glazing -
39 Chesham Place London SW1X 8SB
Works in accordance with the attached specification.
Granted Trees 8 docs -
23 Belgrave Square London SW1X 8PZ
Details of samples of the facing materials to form the new south portico steps pursuant to Condition 6 of listed building consent dated 19th February 2020 (RN:19/08693/LBC)
Granted Conditions 3 docs
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26/06297/FULL Awaiting decision
15 Warwick Way London SW1V 1QT
Alterations to rear elevation at basement level comprising replacement window and installation of double opening door.
-
26/06294/FULL Awaiting decision
15 Eaton Mews South London SW1W 9HP
Installation of railings and sliding lantern light at main roof level in connection with the use of the roof as a terrace.
-
26/06317/FULL Awaiting decision
124 Hamilton Terrace London NW8 9UT
Replacement of existing first-floor sash windows to the front and rear elevations with traditionally detailed painted timber, slim-profile double-glazed sash windows. (Linked to 26/06318/LBC)
-
26/06273/FULL Awaiting decision
9A Grosvenor Square London W1K 5AE
Installation of natural Portland Stone paving to two front entrances. (Linked to 26/05473/LBC)