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46 The Keep, Blackheath, London, SE3 0AF

26/0315/HDHouseholdersApproved
Householder

Approved on 13 April 2026

Council decision: ApproveDelegated (officer decision)7 conditions

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.

Proposal

Construction of a single-storey rear extension and the addition of a detached garden room office and an enclosure for air source heat pump.

Received
2 February 2026
Decision level
Delegated (officer decision)
Ward
BLACKHEATH WESTCOMBE
Agent
HA-EY Ltd
  1. Received2 Feb
  2. Validated17 Feb
  3. Consult.18 Mar
  4. Target
  5. Decided13 Apr

Decided in 55 days (council typically 56)

About this application

This is a full planning application for a single storey rear extension at 46 THE KEEP, BLACKHEATH, LONDON, SE3 0AF. Greenwich has handled 1,022 applications of this type. This one was decided in 70 days, 2 weeks longer than Greenwich's typical decision time. The site is in a conservation area. There are no previous applications recorded at this address. In the past year there have been 304 applications across BLACKHEATH WESTCOMBE. We hold 1,346 applications in total for the SE3 postcode area.

74% of full applications at Royal Borough of Greenwich 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
SE3 0AF
Application type
Householders
Scale / size
Small
Parish
Greenwich

Planning application dates

Date validated
17 February 2026
Consultation expiry
18 March 2026
Consultation start
19 February 2026
Consultation end
18 March 2026
Neighbour consultation end
18 March 2026
Last date for comments
14 April 2026

Applicant and agent

Agent
HA-EY Ltd
Architect profile
HA-EY LTD
Agent address
35 Giles Coppice, London, SE19 1XF

Publicity

Advertisement expiry
18 March 2026

Additional information

Planning Portal ID
PP-14274189
Documents
29
Constraints
1

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Blackheath
  • Flood zone 1: Low probability (rivers and sea)

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

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 2026-11-03. 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: Greenwich

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

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