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336 Main Road, Biggin Hill, Westerham, TN16 2HL

25/04574/HPAHouseholder planning permissionRefused
Householder

Refused on 8 December 2025

Delegated (officer decision)

Approximate location: the centre of the postcode, not the exact property.

Proposal

Erection of oak framed building to be used as granny annexe to main dwelling.

Received
26 September 2025
Decision level
Delegated (officer decision)
Ward
Darwin
  1. Received26 Sep
  2. Validated6 Oct
  3. Consult.27 Oct
  4. Target27 Oct
  5. Decided8 Dec

Decided in 63 days (council typically 56)

About this application

This is a full planning application for an outbuilding at 336 MAIN ROAD, BIGGIN HILL, WESTERHAM, TN16 2HL. Bromley has handled 8,588 applications of this type. This one was decided in 73 days, 2 weeks longer than Bromley's typical decision time. There are no previous applications recorded at this address. In the past year there have been 86 applications across Darwin. We hold 2,973 applications in total for the TN16 postcode area.

77% of full applications at London Borough of Bromley were approved. Across all application types, the council typically decides in about 8 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
TN16 2HL
Application type
Householder planning permission
Scale / size
Small

Planning application dates

Date validated
6 October 2025
Consultation expiry
27 October 2025
Consultation end
27 October 2025
Target decision date
27 October 2025

Planning decision

Statutory period
21 days

Appeal history

6005662
Dismissed
Type: Householder (HAS)Procedure: Written RepresentationsDecision: 30 April 2026Dev Type: Householder developmentsReason: refused
Green Belt

Additional information

Documents
8

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations at the address point. Ones next to the site may also apply.

  • Green belt: Bromley
  • Flood zone 1: Low probability (rivers and sea)

Not published by this council, so not checked: Article 4 directions. Ask the council if these matter.

Possibly incomplete for this council: tree preservation orders.

Also checked, none recorded (21)

flood storage areas, conservation areas, listed buildings, 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 2026-11-03. 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.

Source: Bromley

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

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