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79

DC/26/143627Full planning permissionApproved
Full

Approved on 16 September 2026

Council decision: Granted6 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

Conversion of the 79 Burnt Ash Hill SE12 and the construction of a two storey extension at the rear to provide 2 self-contained flats, together with the installation of replacement windows and new double doors and juliet balconies in the rear elevation, provision of cycle and refuse storage, new brick walls, metal railings and gates to the front and side elevations, alterations to existing lightwells and the upgrading of the existing fabric and all associated works (Amended Description).

Received
9 April 2026
Public comments
5 · last counted 3 October 2026
  1. Received9 Apr
  2. Validated10 Apr
  3. Consult.
  4. Target16 Sep
  5. Decided16 Sep

Decided in 159 days (council typically 56)

About this application

This is a planning application for an extension at 79. Lewisham has handled 335 applications of this type. This one was decided in 159 days, 15 weeks longer than Lewisham's typical decision time. The site is in a conservation area. There have been 4 other applications at this address. In the past year there have been 81 applications across Grove Park.

78% of full planning permission applications at London Borough of Lewisham 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

Application type
Full planning permission

Planning application dates

Date validated
10 April 2026
Target decision date
16 September 2026

Additional information

Documents
33

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Article 4 direction: Small Houses in Multiple Occupation Article 4
  • Brownfield land register: 77 Burnt Ash HillRegister site at or near this address
  • Flood zone 1: Low probability (rivers and sea)

Possibly incomplete for this council: tree preservation orders.

Also checked, none recorded (21)

flood storage areas, conservation 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.

Source: Lewisham

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

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