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Planning application

20 Bancroft Avenue, Hornsey, London, N2 0AS

Granted Haringey HGY/2026/2471 Lawful development: Proposed use

Works: Extension Loft or dormer

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Certificate of lawfulness for the proposed rection of a new rear-side dormer extension, together with the installation of four front rooflights and two rear rooflights.

As published by the council, reference HGY/2026/2471

Application record

Reference
HGY/2026/2471
Type
Lawful development: Proposed use
Status
Decision Made
Decision
Granted As published: Permitted Development
Received
7 Sep 2026
Validated
7 Sep 2026
Decided
15 Sep 2026
Ward
Highgate
Decision by
Delegated Decision
Postcode
N2 0AS

Site history

Applications at this address on the Haringey register

This site has had 2 applications since 2026: 1 approved, 0 refused.

  • HGY/2026/2347 Awaiting decision

    20 Bancroft Avenue, Hornsey, London, N2 0AS

    Erection of a part single-storey rear extension; installation of an obscure-glazed window to the first-floor side elevation serving the shower room; removal of the existing private chimney stack to the front elevation; and enlargement of the existing patio area.

    Submitted 1 Sep 2026 Householder

Timeline

Dates from the published record

  1. 7 Sep 2026

    Received by Haringey

  2. 15 Sep 2026

    Decision issued: Permitted Development

  3. 17 Sep 2026

    Added to PlanIndex

Documents

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

9 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.

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Open the documents

What this grant of permission means

Haringey granted permission on 15 September 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

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

  • 38 Bancroft Avenue, Hornsey, London, N2 0AS

    HGY/2026/0988 Submitted 5 May 2026 50 yards away

    Erection of outbuilding in rear garden of dwellinghouse.

    Granted Full applications 11 docs
    Small domestic

  • 22 Bancroft Avenue, Hornsey, London, N2 0AS

    HGY/2024/2792 Submitted 10 Oct 2024 50 yards away

    Erection of single storey extension which extends beyond the rear wall of the original house by 6m, for which the maximum height would be 3m and for which the height of the eaves would be 3m

    Decided Prior approval Extension 10 docs
    Small domestic

  • 20 Bancroft Avenue, Hornsey, London, N2 0AS

    HGY/2026/2347 Submitted 1 Sep 2026 50 yards away

    90% historically approved · decision due ~27 Oct

    Erection of a part single-storey rear extension; installation of an obscure-glazed window to the first-floor side elevation serving the shower room; removal of the existing private chimney stack to the front elevation; and enlargement of the existing patio area.

    Awaiting decision Householder Extension Windows or glazing 6 docs
    Small domestic

  • 42 Bancroft Avenue, Hornsey, London, N2 0AS

    HGY/2025/2242 Submitted 19 Aug 2025 50 yards away

    Non-Material Amendment application following a grant of planning permission HGY/2022/1115 in relation to the minor increase in height of the single storey element of the building, the slight increase of the height of the parapet of the two storey part of the building and the slight increase in height of the fence dividing the new section of garden from the host/donor garden. The increase from 4 to 7 and re-location of the solar panels .

    Refused Amendments 10 docs
    Small domestic

  • 12 Bancroft Avenue, Hornsey, London, N2 0AS

    HGY/2023/0440 Submitted 14 Feb 2023 50 yards away

    Certificate of Lawfulness for proposed outbuilding

    Refused Lawful development 8 docs

  • 23 Bancroft Avenue, Hornsey, London, N2 0AR

    HGY/2023/0401 Submitted 9 Feb 2023 50 yards away

    Certificate of lawfulness: proposed loft conversion comprising rear and side dormers.

    Granted Lawful development Loft or dormer 19 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