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20 Willoughby Road London NW3 1SA

2026/3657/PFull Planning PermissionPending Decision
Full

Proposal

Alterations to existing roof form including increased front and rear roof pitches, alterations to front and rear dormer windows, installation of 3 x rear rooflights and PV panels, and repositioning of lower ground floor entrance door, with associated alterations.

Received
26 August 2026
Target decision date
27 September 2026
Ward
Hampstead Town
Approximate site (title boundary)
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.

  1. Received26 Aug
  2. Validated25 Aug
  3. Consult.
  4. Target27 Sep
  5. Decided
7 weeks typical decision time in Camden93% of full planning permission applications approved

This is a planning application for a dormer extension at 20 Willoughby Road London NW3 1SA. Camden has handled 558 applications of this type and approves 93% of them, typically deciding them in 54 days. It was submitted on 26 August 2026 and is still awaiting a decision. The site is in the Hampstead conservation area, with 4 listed buildings nearby. There are no previous applications recorded at this address. In the past year there have been 397 applications across Hampstead Town. We hold 2,488 applications in total for the NW3 postcode area.

Application Details

Reference
2026/3657/P
Address
20 Willoughby Road London NW3 1SA
Postcode
NW3 1SA
Local Authority
Camden
Application Type
Full Planning Permission
Scale / Size
Small
Decision Status
Undecided
Current Status
Registered
Ward
Hampstead Town

Applicant & Agent

Planning Application Dates

Date Received
26 August 2026
Target Decision Date
27 September 2026
Date Validated
25 August 2026
Date Submitted
26 August 2026

Planning Decision

Case Officer
Timothy Lee

Publicity

Appeal

Additional Information

Coordinates
51.556080, -0.173535
Enriching application data
2/3
Council recordsAppealsFlood risk

Source: Camden

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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Planning constraints

Designations that overlap or adjoin the site outline.

  • Conservation area: Hampstead
  • Article 4 direction: Basements+2 more
  • Flood zone 1: Low probability (rivers and sea)

Possibly incomplete for this council: tree preservation orders.

Also checked, none recorded (21)

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, heritage coasts and brownfield registers.

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.

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