Planning application
148 Blackhorse Road, Walthamstow, London, E17 6NH
Works: Extension Loft or dormer Small domestic
Read from the description, not a valuation. How we read the register
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
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.
As published by the council, reference 252644
Application record
- Reference
- 252644
- Type
- Certificate of Lawful Development - Proposed
- 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.
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252643 Refused
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.
Timeline
Dates from the published record
-
10 Nov 2025
Received by Waltham Forest
-
10 Aug 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 5 January 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Checking the current position
The published feed does not show a live status for this application; the register on Waltham Forest's own portal holds the authoritative version.
About lawful development applications
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.
Nearby applications
Within 500 metres
-
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.
Refused Prior approval ExtensionSmall domestic -
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.
Granted Prior approval ExtensionSmall domestic -
Willowfield School, 209 Blackhorse Road, Walthamstow, London, E17 6ND
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 AmendmentsSmall domestic -
WILLOWFIELD SCHOOL, 209 Blackhorse Road, Walthamstow, London, E17 6ND
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
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
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
Other lawful development applications
In Waltham Forest
-
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.
-
261619 Status unknown
89 Marmion Avenue, Chingford, London, E4 8EJ
Lawful Development Certificate (Proposed) – Construction of a single storey rear extension.
-
261609 Status unknown
30 Warboys Crescent, Chingford, London, E4 9HR
Lawful Development Certificate (Proposed) – Construction of a single storey rear extension.
-
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.
-
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.