Planning application
3 Princess Mews London NW3 5AP
Works: Windows or glazing Domestic
Read from the description, not a valuation. How we read the register
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Removal of rear roofslope to extend the second floor and enlarge the roof terrace above, replacement access structure to roof and new second floor window to rear wall.
As published by the council, reference 2026/2009/P
Application record
- Reference
- 2026/2009/P
- Type
- Householder Application
- Status
- Final Decision
- Decision
- Granted
- Received
- 20 May 2026
- Validated
- 20 May 2026
- Decided
- 15 Jul 2026
- Ward
- Belsize
- Decision by
- Delegated
- Postcode
- NW3 5AP
Timeline
Dates from the published record
-
20 May 2026
Received by Camden
-
15 Jul 2026
Decision issued: Granted
-
24 Jul 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
8 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 this grant of permission means
Camden granted permission on 15 July 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About householder applications
Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
4 Princess Mews London NW3 5AP
Alteration to rear slope of existing mansard roof to provide additional living space; erection of glazed roof access extension; installation of four obscure glazed windows to rear elevation; other alterations to front facade
Granted Full applications Extension Loft or dormer +1 -
4 Princess Mews London NW3 5AP
Details of materials of glazed roof structure in relation to condition 5 of planning permission 2016/6553/P (dated 15/02/2017) for Alteration to rear slope of existing mansard roof; erection of glazed roof access extension; and other alterations
Granted Full applications Extension Loft or dormer +1 -
4 Princess Mews London NW3 5AP
Installation of 1 air-conditioning unit and associated acoustic enclosure on roof terrace (retrospective)
Granted Full applications -
Rear 1st and 2nd Floors (Flat 4) 58 A Belsize Lane London NW3 5AR
Amendment to planning permission (2021/5411/P) dated 31/01/2022 (for Installation of oriel bay window and replacement of two existing windows at the rear and on the side of the building), namely to change the appearance of the oriel bay window from glass to lead cladded solid wall and increase the oriel bay window footprint.
Granted Full applications Windows or glazing -
Rear 1st and 2nd Floors (Flat 4) 58A Belsize Lane London NW3 5AR
Installation of oriel bay window and replacement of two existing windows at the rear and on the side of the building.
Granted Full applications Windows or glazing -
56 Belsize Lane London NW3 5AR
Removal of condition 3 (personal permission) of planning permission ref: 2014/3227/P (dated 24/07/2014 ) for the change of use from retail (A1) to a veterinary surgery (sui generis).
Granted Full applications
Other householder applications
In Camden
-
2026/3919/P Awaiting decision
7A Pilgrim's Lane London NW3 1SJ
Replacement trellis above side boundary wall to rear garden and replacement flat roof to existing rear extension.
-
2026/2186/P Awaiting decision
85 Priory Road London NW6 3NL
Installation of air conditioning condenser unit and associated acoustic enclosure in the side passageway.
-
2026/2601/P Refused
128 St Pancras Way London NW1 9NB
Erection of rear extension.
-
2026/3952/P Awaiting decision
9 St Paul's Mews London NW1 9TZ
Existing doors to the rear elevation at first and second floor to be replaced with new French doors and windows.
-
2026/3627/P Awaiting decision
83 Highgate West Hill London N6 6LU
Erection of two rear dormers replacing the existing rear dormer, removal of the existing triangular front dormer, replacement of existing handrails with metal railings, installation of an A/C unit on rooftop, replacement of the glazed roof of the lower ground floor rear extension with a solid flat roof, and re-landscaping to front courtyard.