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Planning application

42 Allison Road, Hornsey, London, N8 0AT

Awaiting decision Haringey HGY/2026/2220 Lawful development: Proposed use

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

Certificate of Lawfulness (proposed) for single-storey rear extension, rear dormer roof extension and rooflights on dormers and front facing roof.

As published by the council, reference HGY/2026/2220

Application record

Reference
HGY/2026/2220
Type
Lawful development: Proposed use
Status
Valid
Received
5 Aug 2026
Validated
5 Aug 2026
Ward
Harringay
Decision by
Delegated Decision
Postcode
N8 0AT

Site history

Applications at this address on the Haringey register

This site has had 2 applications since 2026.

  • HGY/2026/2219 Awaiting decision

    42 Allison Road, Hornsey, London, N8 0AT

    Single-storey side-return infill extension and installation of AC condenser units.

    Submitted 1 Sep 2026 Householder

Timeline

Dates from the published record

  1. 5 Aug 2026

    Received by Haringey

  2. 22 Aug 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 30 September 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Haringey took a median of 55 days over the applications it decided in the last year.

Documents

Plans, drawings, consultee responses and the officer's report

6 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Watch members (£5 a month) open the document list from here.

Open the documents

What happens while it is decided

This application is with Haringey for determination, against a statutory target of eight weeks. Over the last year Haringey decided lawful development applications in a median of 46 days. More in our guide to how long planning decisions take.

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 0.3 miles

  • 78 Allison Road, Hornsey, London, N8 0AT

    HGY/2024/2545 Submitted 16 Sep 2024 50 yards away

    The proposal replaces the existing timber sash windows with modern Casement UPVC units.

    Granted Full applications Windows or glazing 10 docs

  • 28 Allison Road, Hornsey, London, N8 0AT

    HGY/2026/2481 Submitted 4 Sep 2026 50 yards away

    91% historically approved · decision due ~30 Oct

    Rear L shaped dormer with rooflights on front slope plus a roof terrace over part of rear addition roof

    Awaiting decision Householder Loft or dormer 6 docs
    Domestic

  • 70 Allison Road, Hornsey, London, N8 0AT

    HGY/2026/0735 Submitted 16 Mar 2026 50 yards away

    Rear dormer and outrigger roof extension, rear terrace to outrigger extension and two front rooflights.

    Granted Householder Extension Loft or dormer 14 docs
    Domestic

  • 42 Allison Road, Hornsey, London, N8 0AT

    HGY/2026/2219 Submitted 1 Sep 2026 50 yards away

    91% historically approved · decision due ~27 Oct

    Single-storey side-return infill extension and installation of AC condenser units.

    Awaiting decision Householder Extension 6 docs
    Small domestic

  • 28 Allison Road, Hornsey, London, N8 0AT

    HGY/2026/1974 Submitted 14 Jul 2026 50 yards away

    Formation of rear dormer with rooflights on front slope.

    Granted Householder Loft or dormer 10 docs
    Domestic

  • 82 Allison Road, Hornsey, London, N8 0AT

    HGY/2026/2375 Submitted 25 Aug 2026 50 yards away

    90% historically approved · decision due ~20 Oct

    Certificate of Lawfulness (proposed) for loft conversion including 2x roof lights and L shaped box dormer on rear roof slopes

    Awaiting decision Lawful development Loft or dormer 8 docs

In Haringey

  • HGY/2026/2285 Granted

    13 Woollaston Road, Hornsey, London, N4 1SD

    Certificate of Lawfulness (proposed) for loft conversion with rear dormer extension.

    Received 14 Aug, published by the council 22 Aug 2026 Lawful development
  • HGY/2026/2357 Granted

    40 Falmer Road, Tottenham, London, N15 5BA

    Lawful development Certification for proposed erection of rear roof extension and insertion of front rooflight

    Received 21 Aug, published by the council 4 Oct 2026 Lawful development
  • HGY/2026/2692 Granted

    125 High Cross Road, Tottenham, London, N17 9NR

    Lawful development: Proposed use for change of use within Class E to a Nail shop (Class E(c)(iii))

    Received 29 Sep, published by the council 4 Oct 2026 Lawful development
  • HGY/2026/2637 Granted

    30 Gloucester Road, Tottenham, London, N17 6DH

    Lawful development: Proposed use. Loft conversion including 2x roof lights and L-shaped box dormer to the rear roof slopes with materials to match existing materials on main roof

    Received 21 Sep, published by the council 4 Oct 2026 Lawful development
  • HGY/2026/2420 Granted

    50 St Loys Road, Tottenham, London, N17 6UD

    Certificate of Lawfulness: Proposed erection of an L-shaped rear dormer including the insertion of 2nos. front rooflights.

    Received 28 Aug, published by the council 7 Sep 2026 Lawful development