Planning application
10 Chalcot Crescent London NW1 8YD
Works: Extension Loft or dormer
Relates to 2025/4793/P
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Variation of condition 2 (drawings) to planning permission 2025/4793/P dated 16/01/2026 for 'Erection of a lower ground floor rear extension and internal alterations' for the removal of the existing non-original loft hatch and roof hatch above, and the installation of an automatic opening vent (AOV) rooflight.
As published by the council, reference 2026/3810/P
Application record
- Reference
- 2026/3810/P
- Type
- Variation or Removal of Condition(s)
- Status
- Registered
- Received
- 8 Sep 2026
- Validated
- 9 Sep 2026
- Ward
- Primrose Hill
- Postcode
- NW1 8YD
Site history
Applications at this address on the Camden register
This site has had 10 applications since 2025: 4 approved, 0 refused.
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2026/3851/L Awaiting decision
10 Chalcot Crescent London NW1 8YD
Variation of condition 2 (drawings) to listed building consent 2025/4952/L dated 16/01/2026 for 'Erection of a lower ground floor rear extension and internal alterations' for the removal of the existing non-original loft hatch and roof hatch above, and the installation of an automatic opening vent (AOV) rooflight.
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2026/2008/L Granted
10 Chalcot Crescent London NW1 8YD
Variation of condition 2 (approved drawings) to listed building consent 2025/4952/L dated 16/01/2026 for 'Erection of a lower ground floor rear extension and internal alterations', to remove a section of existing wall at lower ground floor level.
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2026/2008/P Awaiting decision
10 Chalcot Crescent London NW1 8YD
Variation of condition 2 (approved drawings) to listed building consent 2025/4952/L dated 16/01/2026 for 'Erection of a lower ground floor rear extension and internal alterations', to remove a section of existing wall at lower ground floor level.
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2026/1881/L Granted
10 Chalcot Crescent London NW1 8YD
Variation of condition 2 (approved drawings) to listed building consent 2025/4952/L dated 16/01/2026 for 'Erection of a lower ground floor rear extension and internal alterations', to enlarge the existing opening within the wall between the front and rear rooms at ground floor level.
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2026/1881/P Awaiting decision
10 Chalcot Crescent London NW1 8YD
Variation of condition 2 (approved drawings) to listed building consent 2025/4952/L dated 16/01/2026 for 'Erection of a lower ground floor rear extension and internal alterations', to enlarge the existing opening within the wall between the front and rear rooms at ground floor level.
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2025/4952/L Granted
10 Chalcot Crescent London NW1 8YD
Erection of a lower ground floor rear extension and internal alterations.
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2025/4793/P Granted
10 Chalcot Crescent London NW1 8YD
Erection of a lower ground floor rear extension and associated alterations.
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2025/1034/P Withdrawn
10 Chalcot Crescent London NW1 8YD
External and Internal alterations to single dwelling house
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2025/1090/L Withdrawn
10 Chalcot Crescent London NW1 8YD
External and Internal alterations to single dwelling house
Timeline
Dates from the published record
-
8 Sep 2026
Received by Camden
-
9 Sep 2026
Validated
Checked as complete and ready for consideration.
-
10 Sep 2026
Added to PlanIndex
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Decision
Awaiting decision
Decision expected by 4 November 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Camden took a median of 42 days over the applications it decided in the last year.
Related applications
Cases linked to this one on the register
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2025/4793/P Granted
10 Chalcot Crescent London NW1 8YD
Erection of a lower ground floor rear extension and associated alterations.
Documents
Plans, drawings, consultee responses and the officer's report
7 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.
Trade members open them from here.
Open the documentsWhat happens while it is decided
This application is with Camden for determination, against a statutory target of eight weeks. Over the last year Camden decided amendment applications in a median of 48 days. More in our guide to how long planning decisions take.
About amendment applications
An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.
Nearby applications
Within 500 metres
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10 Chalcot Crescent London NW1 8YD
96% historically approved · decision due ~4 Nov
Variation of condition 2 (drawings) to listed building consent 2025/4952/L dated 16/01/2026 for 'Erection of a lower ground floor rear extension and internal alterations' for the removal of the existing non-original loft hatch and roof hatch above, and the installation of an automatic opening vent (AOV) rooflight.
Awaiting decision Heritage and listed buildings Extension Loft or dormer 1 doc -
Flat 4 46 Chalcot Crescent London NW1 8YD
Removal and replacement of defective third floor rear window.
Granted Full applications Windows or glazing -
Flat 5 1 Chalcot Square London Camden NW1 8YB
Proposed replacement of existing rooflight at front roof slope.
Refused Full applications Loft or dormer -
1 Flat 5 Chalcot Square London Camden NW1 8YB
Internal alterations including removal of existing modern partition walls and staircase and replacement spiral staircase with associated making good works
Granted Heritage and listed buildings -
1 Chalcot Square London NW1 8YB
Installation of windows to two blind windows at third floor level on Sharpeshall Street elevation and replacement of windows at second and third floor on Sharpeshall Street elevation and third floor on Chalcot Square elevation and internal alterations all in connection with change of use of 2 flats to a maisonette at second and third floor level (Class C3).
Withdrawn Heritage and listed buildings New dwelling Windows or glazingSeveral homes -
1 Chalcot Square London NW1 8YB
Installation of windows to two blind windows at third floor level on Sharpeshall Street elevation and replacement of windows at second and third floor on Sharpeshall Street elevation and third floor on Chalcot Square elevation and change of use of 2 flats to a maisonette at second and third floor level (Class C3).
Withdrawn Full applications New dwelling Windows or glazingSeveral homes
Other amendment applications
In Camden
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2026/3792/P Awaiting decision
4 Connaught Mews London NW3 2NW
Removal of condition 8 (obscure glazing) to planning permission 2025/4212/P dated 04/03/2026 for 'Erection of single storey side extension, outbuilding and associated landscape. Replacement of side window with doors and installation of rooflights'.
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2026/3320/P Awaiting decision
68 Belsize Road London NW6 4TG
Variation of condition 2 (approved plans) of planning permission 2025/4441/P dated 05/02/2026 (Amalgamation of 2 x separate residential flats into one single dwellinghouse, erection of a single storey rear extension, installation of an ASHP unit in the rear garden, replacement of rooflights to main roof, replacement of windows and doors to front and rear elevation), namely to create a new door with associated stairs on lower ground floor under the front porch.
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2026/3509/P Awaiting decision
Flat A 55 Leverton Street London NW5 2NX
Non-material amendment to planning permission 2026/0413/P dated 12/05/2026 (Erection of a single storey side and rear extension, re-construction of rear garden boundary wall, replacement of a ground floor rear window with an access door, replacement of a side door with a window, insertion of two rooflights and reinstatement of front sash windows), namely to reduce the depth of the side element of the approved extension.
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2026/0216/P Granted
13 Daleham Gardens London NW3 5BY
Variation of conditions 2 (approved drawings), 6 (trees), 7 (landscaping), 9 (green roof) and removal of condition 10 (air source heat pump cooling restriction) to planning permission 2025/1427/P 'Remodelling, renovation and extensions to existing dwelling including demolition of front porch,side/rear wrap-around extension and garage, erection of single-storey side and rear extensions, lower ground floor extension, creation of roof terraces, new garden patio, alterations to existing openings and front boundary treatment, external repair and refurbishment works and installation of two air source heat pumps'.
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2026/2540/P Granted
50-51 Russell Square London WC1B 4JP
Non-material amendment to planning permission ref. 2023/5470/P (dated 13/03/2025) for: Deep refurbishment of existing building including new facades; erection of replacement roof extension with terrace to rear; reopening of lightwell to front and reconfiguration of entrance area; demolition of two storey outrigger and replacement with three storeys plus plant enclosure; single storey rear infill extension to existing car park with terrace above; erection of full height stair rear core extension. NAMELY for alterations to the front lightwell, ground floor entrances, fifth floor fenestration, plant enclosure, and rear terrace.