Skip to content

46 The Crescent, Walthamstow, London, E17 8AB

261484Certificate of Lawful Development - ProposedApproved
Outline / PiP

Approved on 6 August 2026

Council decision: Approved (With Informatives)

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

Lawful Development Certificate (Proposed) - Construction of dormer roof extension to main rear roof, and roof extension above two storey outrigger, with installation of two roof lights to front roof slope.

Received
16 June 2026
Ward
St James
  1. Received16 Jun
  2. Validated
  3. Consult.
  4. Target
  5. Decided6 Aug

Decided in 51 days (council typically 56)

About this application

This is an outline application for a dormer extension at 46 The Crescent, Walthamstow, London, E17 8AB. Waltham Forest has handled 382 applications of this type. This one was decided in 51 days, 5 days quicker than Waltham Forest's typical decision time. There has been 1 other application at this address. In the past year there have been 93 applications across St James. We hold 2,000 applications in total for the E17 postcode area.

79% of outline applications at London Borough of Waltham Forest 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.See what's approved near your address

Application details

Postcode
E17 8AB
Application type
Certificate of Lawful Development - Proposed

Planning application dates

Validated
16 June 2026

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Article 4 direction: Other Article 4 Direction Area
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (23)

flood storage areas, conservation 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, 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.

Associated applications

  1. 2026
    22 Jun

    Construction of a single storey wraparound rear extension.

    ApprovedApplicationFiled alongside261485
  2. 2026
    16 Jun

    Lawful Development Certificate (Proposed) - Construction of dormer roof extension to main rear roof, and roof…

    This applicationApprovedOutline261484

Source: Waltham Forest

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 E17

New planning applications delivered to your inbox daily.

Around this site

Discuss this application on r/PlanningPermissionUK

For applicants and trades

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.

Get The Signal Report