Portman House 10 Daventry Street London NW1 5NX
Proposal
Installation of boiler flue to the South-West elevation and new rainwater pipe to the South-East elevation.
- Received
- 21 October 2024
- Decided
- 28 November 2024 · Application Refused
- Decision level
- Delegated (officer decision)
- Council
- City of Westminster
- Ward
- Church Street
Boundary © HM Land Registry, © Ordnance Survey · details
This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.
- ReceivedReceived21 Oct
- ValidatedValidated21 Oct
- Consult.Consultation
- TargetTarget Date16 Dec
- DecidedDecided28 Nov
Decided in 38 days (council typically 49)
This is a full planning application at Portman House 10 Daventry Street London NW1 5NX. Westminster has handled 4,484 applications of this type and approves 85% of them, typically deciding them in 74 days. This one was decided in 38 days, 5 weeks quicker than Westminster's median. The site is in the Lisson Grove conservation area, with 4 listed buildings nearby. There has been 1 other application at this address. In the past year there have been 33 applications across Church Street. We hold 3,130 applications in total for the NW1 postcode area.
Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Westminster
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
Track this application
Get email alerts when there is a planning decision or status change.
Get email alerts near NW1
New planning applications delivered to your inbox daily.
Planning history at this site
1 other application at this property, newest first.
Planning constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Lisson Grove
- Listed building: Christ Church Cosway Street London NW1 5BTOn or next to this site
- Article 4 direction: Article 4 Basement Development Permitted Rights Removed
- Brownfield land register: Marylebone Institute School House 29 Cosway Street London NW1 6THRegister site at or near this address
- Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (21)
flood storage areas, listed buildings, tree preservation orders, 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 2026-10-09. 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.
What's been approved on your street?
See what the council approved and refused near this address for the project you have in mind, and the rules that apply here.