Skip to content
PlanIndex Get alerts
Menu

Planning application

Chagford House Chagford Street London NW1 6EG

Awaiting decision Westminster 26/00639/ADLBC Approval of Details (ADLBC)

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

Details of new sash windows and sash boxes pursuant to Condition 3 of Listed Building Consent dated 29 January 2025 (RN24/07848/LBC)

As published by the council, reference 26/00639/ADLBC

Application record

Reference
26/00639/ADLBC
Type
Approval of Details (ADLBC)
Status
Pending
Received
4 Feb 2026
Validated
25 Feb 2026
Ward
Regent's Park
Postcode
NW1 6EG

Site history

Applications at this address on the Westminster register

This site has had 2 applications since 2025: 1 approved, 0 refused.

  • 25/06167/LBC Granted

    Chagford House Chagford Street London NW1 6EG

    Replacement of existing internal door.

    Decided 13 Oct 2025 Heritage and listed buildings

Timeline

Dates from the published record

  1. 4 Feb 2026

    Received by Westminster

  2. 25 Feb 2026

    Validated

    Checked as complete and ready for consideration.

  3. 21 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 22 April 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

Archway Building Consultancy Ltd Agent, registered in Edgware

Active · incorporated 2017 · Edgware

339 applications on PlanIndex · across 19 councils · 91% 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

6 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 condition discharge and variation applications in a median of 42 days. More in our guide to how long planning decisions take.

About condition discharge and variation applications

This application deals with conditions on an existing permission, supplying the details a condition requires or asking to vary or remove one, without reopening the permission itself. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • Flat 14 Chagford House Chagford Street London NW1 6EG

    26/03432/LBC Submitted 26 May 2026 50 yards away

    90% historically approved · decision due ~21 Jul

    Internal alterations and refurbishment at second floor level, including the removal and addition of partitions.

    Decided Heritage and listed buildings 13 docs
  • Flat 14 Chagford House Chagford Street London NW1 6EG

    26/03429/FULL Submitted 26 May 2026 50 yards away

    87% historically approved · decision due ~21 Jul

    Replacement of a window at second floor front elevation with double glazed timber sash window. (Linekd with 26/03430/LBC)

    Awaiting decision Full applications Windows or glazing 9 docs
  • Flat 14 Chagford House Chagford Street London NW1 6EG

    26/00102/FULL Submitted 9 Jan 2026 50 yards away

    Replacement of a single window at second floor front elevation with timber casement window with sash bar and inset fans. (Linked to 26/00103/LBC)

    Refused Full applications Windows or glazing 24 docs
  • Flat 14 Chagford House Chagford Street London NW1 6EG

    26/00103/LBC Submitted 9 Jan 2026 50 yards away

    Replacement of a single window at second floor front elevation with timber casement window with sash bar and inset fans; layout configurations; and internal refurbishment works. (Linked to 26/00102/FULL)

    Refused Heritage and listed buildings Windows or glazing 21 docs
  • Chagford House Chagford Street London NW1 6EG

    25/06167/LBC Submitted 29 Aug 2025 50 yards away

    Replacement of existing internal door.

    Granted Heritage and listed buildings 10 docs
  • Flat 14 Chagford House Chagford Street London NW1 6EG

    26/03430/LBC Submitted 26 May 2026 50 yards away

    90% historically approved · decision due ~21 Jul

    Replacement of a window at second floor front elevation with double glazed timber sash window. (Linked with 26/03429/FULL)

    Awaiting decision Heritage and listed buildings Windows or glazing 9 docs

In Westminster

  • 26/04860/ADLBC Granted

    New Zealand House 80 Haymarket London SW1Y 4TE

    Details of external and internal signage strategy pursuant to Condition 7(E) of listed building consent dated 12th February 2021 (RN: 19/07816/LBC)

    Received 20 Jul, published by the council 1 Aug 2026 Conditions
  • 26/04843/ADLBC Granted

    New Zealand House 80 Haymarket London SW1Y 4TE

    Detailed design and specification of new blinds to NZH based on mock-up trials on-site pursuant to Condition 6(m) of listed building consent dated 12th February 2021 (19/07816/LBC).

    Received 20 Jul, published by the council 1 Aug 2026 Conditions
  • 26/05026/ADLBC Awaiting decision

    St James's Park The Mall London SW1A 1AA

    Details of method statement for re-carving works pursuant to condition 3(i) of listed building consent dated 16 July 2026 (RN: 26/03399/LBC)

    Received 27 Jul, published by the council 4 Aug 2026 Conditions
  • 26/04850/ADLBC Awaiting decision

    17 Belgrave Square London SW1X 8PG

    Detailed drawings of garage doors, roof lantern and any new lighting and flooring in the principal rooms pursuant to condition 6 (iii) (iv) (v) of listed building 18th August 2025 (RN:25/03417/LBC)

    Received 20 Jul, published by the council 1 Aug 2026 Conditions
  • 25/07120/ADLBC Granted

    72 - 74 Lancaster Gate London W2 3NH

    Details of new and altered doors and door architraves, including external faces of lifts (detailed elevations and sections at 1:10) pursuant to Condition 3 (A) of Listed Building Consent dated 14 December 2023 (RN: 23/00772/LBC) (Linked app: 25/07088/ADFULL)

    Received 2 Oct, published by the council 21 Jul 2026 Conditions