5 Dean Gardens, Walthamstow, London, E17 3QP

1. 23 Dec 2025

   Received by Waltham Forest

2. 10 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 17 February 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

The published feed does not show a live status for this application; the register on Waltham Forest's own portal holds the authoritative version.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 79 Greenway Avenue, Walthamstow, London, E17 3QJ

  260283 Submitted 3 Feb 2026 59m away

  Decision due ~31 Mar

  Lawful development certificate (Proposed) - for the construction of a single storey rear extension.

  Status unknown Lawful development Extension
  Small domestic

• 8 Greenway Avenue, Walthamstow, London, E17 3QN

  260137 Submitted 19 Jan 2026 77m away

  Decision due ~16 Mar

  Lawful Development Certificate (Proposed) - Construction of dormer roof extension to main rear roof (with French doors and safety railings), together with installation of three roof lights to front roof slope. Construction of a single storey rear extension.

  Status unknown Lawful development Extension Loft or dormer +1
  Small domestic

• 34 Greenway Avenue, Walthamstow, London, E17 3QN

  261277 Submitted 22 May 2026 77m away

  Decision due ~17 Jul

  Construction of a first floor side extension including changes to main roof. Installation of two roof-lights to the existing rear extension and alterations to the fenestration involving replacement windows and doors to the rear extension and new window to the side elevation.

  Status unknown Householder Extension Loft or dormer +1
  Domestic

• 209 Wood Street, Walthamstow, London, E17 3NU

  261328 Submitted 1 Jun 2026 123m away

  Decision due ~27 Jul

  Planning application to retain use of the property as a gym (Class E(d)) including retention of an enclosure to the existing first floor front balcony with a retractable roof/canopy structure, single storey side extensions at ground floor level and rear first floor extension.

  Status unknown Full applications Extension
  Small domestic

• 78 Upper Walthamstow Road, Walthamstow, London, E17 3QQ

  252274 Submitted 25 Sep 2025 154m away

  Decision due ~20 Nov

  Lawful Development Certificate (Proposed) - Construction of dormer roof extension to main rear roof, together with installation of three roof lights to front roof slope.

  Status unknown Lawful development Extension Loft or dormer

• 74 Upper Walthamstow Road, Walthamstow, London, E17 3QQ

  252324 Submitted 2 Oct 2025 154m away

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

  Granted Lawful development Extension Loft or dormer

• 261617 Status unknown

  9 Fulready Road, Leyton, London, E10 6DT

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

  1 Jul 2026 Lawful development
• 261619 Status unknown

  89 Marmion Avenue, Chingford, London, E4 8EJ

  Lawful Development Certificate (Proposed) – Construction of a single storey rear extension.

  1 Jul 2026 Lawful development
• 261609 Status unknown

  30 Warboys Crescent, Chingford, London, E4 9HR

  Lawful Development Certificate (Proposed) – Construction of a single storey rear extension.

  30 Jun 2026 Lawful development
• 261614 Status unknown

  1 Sopwith Avenue, E17 6TD

  Lawful Development Certificate (Proposed) - temporary removal of facade elements to allow access to the internal cavities, where insulation and cavity barriers (fire-stopping components within the wall build-up) will be replaced. Once complete, all facade materials will be reinstated, with any damaged items replaced to match the existing finish.

  30 Jun 2026 Lawful development
• 261607 Status unknown

  26A Hervey Park Road, Walthamstow, London, E17 6LJ

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

  29 Jun 2026 Lawful development