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Planning application

148 Blackhorse Road, Walthamstow, London, E17 6NH

Refused Waltham Forest 252643 Prior Approval - Larger Home Extension

Works: Extension Small domestic

Read from the description, not a valuation. How we read the register

Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.

Proposal

Prior approval for the construction of a single storey rear extension which would extend 6.00m beyond the rear wall of the existing dwelling, a maximum height of 3.00m and an eaves height of 3.00m.

As published by the council, reference 252643

Application record

Reference
252643
Type
Prior Approval - Larger Home Extension
Status
Rejected
Decision
Prior Approval Refused
Received
10 Nov 2025
Ward
High Street
Postcode
E17 6NH

Site history

Applications at this address on the Waltham Forest register

This site has had 3 applications since 2025: 1 approved, 1 refused.

  • 253004 Granted

    148 Blackhorse Road, Walthamstow, London, E17 6NH

    Prior approval for the construction of a single storey rear extension which would extend 6.00m beyond the rear wall of the existing dwelling, a maximum height of 3.00m and an eaves height of 3.00m.

    Submitted 17 Dec 2025 Prior approval
  • 252644 Status unknown

    148 Blackhorse Road, Walthamstow, London, E17 6NH

    Lawful Development Certificate (Proposed) - Construction of a single storey rear infill extension, dormer roof extension to main rear roof, and roof extension above two storey outrigger.

    Submitted 10 Nov 2025 Lawful development

Timeline

Dates from the published record

  1. 10 Nov 2025

    Received by Waltham Forest

  2. 10 Aug 2026

    Added to PlanIndex

What this refusal means

Waltham Forest refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

About prior approval applications

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 148 Blackhorse Road, Walthamstow, London, E17 6NH

    252644 Submitted 10 Nov 2025 0m away

    Decision due ~5 Jan

    Lawful Development Certificate (Proposed) - Construction of a single storey rear infill extension, dormer roof extension to main rear roof, and roof extension above two storey outrigger.

    Status unknown Lawful development Extension Loft or dormer
    Small domestic
  • 148 Blackhorse Road, Walthamstow, London, E17 6NH

    253004 Submitted 17 Dec 2025 0m away

    Prior approval for the construction of a single storey rear extension which would extend 6.00m beyond the rear wall of the existing dwelling, a maximum height of 3.00m and an eaves height of 3.00m.

    Granted Prior approval Extension
    Small domestic
  • Willowfield School, 209 Blackhorse Road, Walthamstow, London, E17 6ND

    252177 Submitted 10 Sep 2025 37m away

    Decision due ~5 Nov

    Variation of Condition 2 (Plans) of S73 planning permission reference 242503, granted 05/12/2024, to allow for amendment to landscaping to include relocation of cycle store and bin store including access path. Amendment to include omission of stepped access from highway and external social area for alternative provision. Amendment to include for edge protection to single storey of activity studio at school entrance.

    Status unknown Amendments
    Small domestic
  • WILLOWFIELD SCHOOL, 209 Blackhorse Road, Walthamstow, London, E17 6ND

    261070 Submitted 30 Apr 2026 37m away

    Decision due ~25 Jun

    Submission of details pursuant to condition 6 (Travel Plan) attached to planning permission reference 242503, granted 05/12/2024.

    Status unknown Conditions
  • 64 Lloyd Road, Walthamstow, London, E17 6NR

    251997 Submitted 13 Aug 2025 131m away

    Construction of dormer roof extension to main rear roof, together with installation of three roof lights to front roof slope.

    Granted Full applications Extension Loft or dormer
  • Student Accommodation Management Suite, ALLIOT HOUSE, 4 Forest Road, Walthamstow, London, E17 6JJ

    260426 Submitted 17 Feb 2026 226m away

    Variation of Condition 2 (Approved plans) and Condition 5 (Noise Report) of planning permission reference 242195 granted 06/11/2025 in order to bring forward additional replacement glazing to the rear elevation and relocation of plant to a new plant enclosure to the rear of the site.

    Granted Amendments Windows or glazing

In Waltham Forest

  • 261625 Status unknown

    28 Moreland Way, Chingford, London, E4 6SG

    Prior approval for the construction of a single storey rear extension which would extend 6.00m beyond the rear wall of the existing dwelling, a maximum height of 3.20m and an eaves height of 3.00m.

    2 Jul 2026 Prior approval
  • 261620 Status unknown

    1 Somers Road, Walthamstow, London, E17 6RU

    Prior approval for the construction of a single storey rear infill extension which would extend 6.00m beyond the original rear wall of the existing dwelling with a maximum height of 3.60m and an eaves height of 3.00m.

    1 Jul 2026 Prior approval
  • 261593 Status unknown

    62 Barrett Road, Walthamstow, London, E17 9ET

    Prior approval for the construction of a single storey rear infill extension which would extend 5.80m beyond the original rear wall of the existing dwelling with a maximum height of 3.01m and an eaves height of 2.45m.

    29 Jun 2026 Prior approval
  • 261602 Status unknown

    45 Endlebury Road, Chingford, London, E4 6QB

    Prior approval for the construction of a single storey rear extension which would extend 6.00m beyond the rear wall of the existing dwelling, a maximum height of 3.00m and an eaves height of 2.80m.

    29 Jun 2026 Prior approval
  • 261590 Status unknown

    251 Old Church Road, Chingford, London, E4 6RB

    Prior approval for the construction of a single storey rear extension which would extend 6.00m beyond the rear wall of the existing dwelling, a maximum height of 2.87m and an eaves height of 2.87m.

    29 Jun 2026 Prior approval