Planning application
12 - 14 Harcourt Street London W1H 4HD
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
Rear window at second floor; raised section of metal railings that enclose the rear roof area at the second floor; and alterations to the metal railings to install glazed panels.
As published by the council, reference 25/08187/CLEUD
Application record
- Reference
- 25/08187/CLEUD
- Type
- Certificate of Lawfulness (existing)
- Status
- Pending
- Received
- 10 Nov 2025
- Validated
- 10 Nov 2025
- Ward
- Marylebone
- Postcode
- W1H 4HD
Site history
Applications at this address on the Westminster register
This site has had 5 applications since 2006: 2 approved, 0 refused.
-
26/02158/ADV Awaiting decision
12 - 14 Harcourt Street London W1H 4HD
Display of two non-illuminated fascia signs measuring 0.31m x 1.98m and 0.46m x 3m. [Linked to 26/02157/FULL]
-
26/02157/FULL Awaiting decision
12 - 14 Harcourt Street London W1H 4HD
Extension of and improvements to the existing ground floor terrace to the rear, modification to entrances, installation of security access gate, other associated external works and the installation of new signage. [Linked to 26/02158/ADV]
-
06/06031/ADFULL Granted
12 - 14 Harcourt Street London W1H 4HD
Details of rolled lead roof to approved extension pursuant to Condition 4 of planning permission dated 08 June 2006 (RN: 06/00236).
-
06/00236/FULL Granted
12 - 14 Harcourt Street London W1H 4HD
Extension of rear second and third floors to provide additional office space (Class B1) and creation of a terrace area to the rear and side of the first floor. Installation of three air conditioning units to the rear first floor level.
Timeline
Dates from the published record
-
10 Nov 2025
Received by Westminster
-
20 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 5 January 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
Paul Dickinson and Associates Agent
61 applications on PlanIndex · across 24 councils · 75% 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
17 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 lawful development applications in a median of 78 days. More in our guide to how long planning decisions take.
About lawful development applications
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.
Nearby applications
Within 0.3 miles
-
12 - 14 Harcourt Street London W1H 4HD
Details of rolled lead roof to approved extension pursuant to Condition 4 of planning permission dated 08 June 2006 (RN: 06/00236).
Granted Full applications Extension 2 docs -
12 - 14 Harcourt Street London W1H 4HD
84% historically approved · decision due ~26 May
Display of two non-illuminated fascia signs measuring 0.31m x 1.98m and 0.46m x 3m. [Linked to 26/02157/FULL]
Awaiting decision Advertising 1 doc -
12 - 14 Harcourt Street London W1H 4HD
87% historically approved · decision due ~26 May
Extension of and improvements to the existing ground floor terrace to the rear, modification to entrances, installation of security access gate, other associated external works and the installation of new signage. [Linked to 26/02158/ADV]
Awaiting decision Full applications Extension 1 doc -
12 - 14 Harcourt Street London W1H 4HD
Extension of rear second and third floors to provide additional office space (Class B1) and creation of a terrace area to the rear and side of the first floor. Installation of three air conditioning units to the rear first floor level.
Granted Full applications Extension 11 docs -
6 - 11 Harcourt Street London W1H 4AG
90% historically approved · decision due ~22 Jun
Upgrading of Fire doors and creation of fire separating lobbies between different use classes.
Awaiting decision Heritage and listed buildings 40 docs -
6 - 11 Harcourt Street London W1H 4AG
Internal alterations.
Granted Heritage and listed buildings 26 docs
Other lawful development applications
In Westminster
-
26/06158/CLOPUD Awaiting decision
2 Hamilton Gardens London NW8 9PT
Erection of replacement, enlarged single storey ground floor rear extension.
-
26/06080/CLEUD Awaiting decision
91 Gloucester Place London W1U 6JG
Certificate of lawfulness for an existing use or development to confirm that the development authorised by full planning permission ref. 22/08385/FULL & listed building consent (RN 22/08386/LBC) has lawfully commenced as a result of the works evidenced.
-
26/06044/CLOPUD Awaiting decision
9 Abinger Mews W9 3SP
Proposed loft conversion with rear dormer and 3 front rooflights to existing mid-terraced house.
-
26/06035/CLOPUD Awaiting decision
30 Ashworth Road W9 1JY
Erection of new garden retaining wall and erection of new garden timber fence to match the height of existing fence.
-
26/05871/CLEUD Awaiting decision
32 Cambridge Street London SW1V 4QH
Confirmation of the lawful implementation of planning permission dated 13 August 2021 (RN: 21/04143/FULL) has commenced before the expiry of the three year time period and may, therefore, lawfully be carried out and completed.