40 Ordnance Hill London NW8 6PU
Approved on 26 February 2026
Proposal
Amendments to planning permission dated 15th Septmeber 2025 (RN:25/00867/FULL) for Erection of a single storey rear extension, and part single / part double storey side extension and associated refurbishment works including rear dormer windows, landscaping works, and works to the front and rear facades. Namely, the movement of the proposed rear extension away from the existing garden wall, a series of internal alterations including new dividing walls and some room configurations are proposed, the proposed side and rear windows, and dormer window, are proposed to be provided as metal windows in timber surround, the size of one of the proposed rooflights to the single storey-side extension is to be reduced in response to proposed internal adjustments, the small front elevation window is to be revised from a round window to a square window and proposed that the celestory windows to the side extension are extended below brickwork at first floor level.
- Received
- 7 November 2025
- Council
- City of Westminster
- Ward
- Regent's Park
- Agent
- Chroma Planning and Development Limited
- ReceivedReceived7 Nov
- ValidatedValidated7 Nov
- Consult.Consultation
- TargetTarget Date5 Dec
- DecidedDecided26 Feb
Decided in 111 days (council typically 49)
About this application
This is an application to amend a permission at 40 Ordnance Hill London NW8 6PU. Westminster has handled 604 applications of this type. This one was decided in 111 days, 9 weeks longer than Westminster's typical decision time. The site is in the St John's Wood conservation area, with 11 listed buildings nearby. There has been 1 other application at this address. In the past year there have been 124 applications across Regent's Park. We hold 2,757 applications in total for the NW8 postcode area.
88% of amendment applications at City of Westminster were approved. Across all application types, the council typically decides in about 7 weeks (median).
Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street
Application details
- Postcode
- NW8 6PU
- Application type
- Non-material amendments
- Scale / size
- Small
Planning application dates
- Date validated
- 7 November 2025
- Target decision date
- 5 December 2025
Applicant and agent
- Agent
- Chroma Planning and Development Limited
- Agent address
- 67 Harrow Road Bristol BS4 3NB
Planning decision
- Statutory period
- 28 days
Site constraints
Designations that overlap or adjoin the site outline.
- Conservation area: St John's Wood
- Article 4 direction: Article 4 Basement Development Permitted Rights Removed
- Tree Preservation Order: Ref W668Protected tree on or next to this site
- Brownfield land register: Mermaid House 43A Acacia Road London NW8 6APRegister site at or near this address
- Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (20)
flood storage areas, listed buildings, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves and heritage coasts.
A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.
Data © Crown copyright and others · sources and licences
Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.
© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.
© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.
© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.
Contains Ordnance Survey data © Crown copyright and database right 2026.
Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.
Associated applications
- 202630 Apr
Variation of conditions 1, 5, 7, 9 of planning permission dated 15th September 2025 (RN 25/00867/FULL
RefusedVariation of conditions (s73)26/01713/FULL - 202522 Dec
Details of all foundations within tree root protection areas pursuant to condition 9 of planning permission…
ApprovedDischarge of conditions25/09288/ADFULL - 20257 Nov
Amendments to planning permission dated 15th Septmeber 2025 (RN:25/00867/FULL
This applicationApprovedNon-material amendment25/08158/NMA - 202517 Sep
Detailed method statement explaining the measures you will take to protect the trees on and close to the site…
ApprovedDischarge of conditions25/06670/ADFULL - 20257 Feb
Erection of a single storey rear extension, and part single / part double storey side extension and…
ApprovedHouseholderPart of25/00867/FULL
Planning history at this site
3 other applications at this property, newest first.
- 202612 Oct
Lime T2 -To prune any roots over 25mm exposed within the excavated holes for the manhole drainage inspection…
PendingApplication26/06929/TPO - 20252 Apr
Magnolia: remove Purple Plum: Remove
No Objection to Proposal (OBS only)Application25/02256/TCA - 202521 Jan
1 x Lime (T1) Front: crown reduce to previous, most recent reduction points, retaining shortened furnishing…
ApprovedApplication25/00388/TPO
Source: Westminster
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Around this site
Nearby applications
- 18 Norfolk Road London NW8 6HG25/00429/TCA · TreesApproved0.0 mi
- 14 Norfolk Road London NW8 6HE24/05504/FULL · FullAwaiting decision0.0 mi
- 14 Norfolk Road London NW8 6HE24/05505/LBC · HeritageAwaiting decision0.0 mi
- St Johns Wood Barracks Ordnance Hill London NW8 6PT25/06759/ADFULL · ConditionsApproved0.0 mi
- St Johns Wood Barracks Ordnance Hill London NW8 6PT26/01338/MOD106 · ConditionsApproved0.0 mi
For applicants and trades
Consultants on this application
- Chroma Planning and Development Limited · Agent for this application
Contractors near this project
Find contractors for extensions near this site- Atlas South Technical Service LimitedVerifiedLondonProperty MaintenanceHandyman1.6 mi
- Avent Roofing ServicesVerifiedWestminsterRoofing2.4 mi
- Orient Construction Consultancy LimitedVerifiedLondon4.4 mi
- Building Services LondonVerifiedLondonExtensionsLoft Conversions6.7 mi
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