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Planning application

11 Lansdowne Road, Hornsey, London, N10 2AX

Granted Haringey HGY/2025/3558 Lawful development: Proposed use

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

Proposal

Certificate of Lawfulness for the proposed construction of outbuilding as replacement garden room in place of an existing shed structure.

As published by the council, reference HGY/2025/3558

Application record

Reference
HGY/2025/3558
Type
Lawful development: Proposed use
Status
Decision Made
Decision
Granted As published: Approve
Received
22 Dec 2025
Validated
22 Dec 2025
Decided
24 Feb 2026
Ward
Alexandra Park
Decision by
Delegated Decision
Postcode
N10 2AX

Site history

Applications at this address on the Haringey register

This site has had 2 applications since 2025: 2 approved, 0 refused.

  • HGY/2025/2852 Granted

    11 Lansdowne Road, Hornsey, London, N10 2AX

    Proposed single storey rear extension and extension to existing patio (Amended drawings).

    Decided 2 Mar 2026 Householder

Timeline

Dates from the published record

  1. 22 Dec 2025

    Received by Haringey

  2. 24 Feb 2026

    Decision issued: Approve

  3. 24 Jul 2026

    Added to PlanIndex

Documents

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

8 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 24 February 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

  • 11 Lansdowne Road, Hornsey, London, N10 2AX

    HGY/2025/2852 Submitted 17 Oct 2025 50 yards away

    Proposed single storey rear extension and extension to existing patio (Amended drawings).

    Granted Householder Extension 13 docs
    Small domestic

  • 9 Lansdowne Road, Hornsey, London, N10 2AX

    HGY/2026/0658 Submitted 9 Mar 2026 50 yards away

    G1 group of goat willow - reduce to previous reduction points (hedge height)

    Granted Trees 3 docs

  • 24, Lansdowne Road, London, N10 2AX

    HGY/2025/3410 Submitted 12 Dec 2025 50 yards away

    Replacement of ground floor windows and doors on the rear and side of the main building. Demolition of the existing garage at the rear of the property to be replaced by a new outbuilding. General facade repair works. Installation of air conditioning unit on rear façade of dwelling.

    Granted Householder Demolition Windows or glazing 12 docs
    Small domestic

  • 44, Grove Avenue, London, N10 2AR

    CON/2021/0242 Submitted 24 May 2021 100 yards away

    T1: Poplar (14m): Pollard to 1m above original points at around 5m from ground level due to extensive decay at original pollard points T2: Conifer (12m): Fell to ground level as it is a poor specimen due to heavy pruning in past and it is casting excessive shade over garden

    Granted Trees 3 docs

  • 44 Grove Avenue, Hornsey, London, N10 2AR

    HGY/2026/2212 Submitted 5 Aug 2026 100 yards away

    T1: Poplar (10m): Re- pollard to previous points removing around 7m of growth to keep tree at a size suitable for its location and as part of regular maintenance T2: Pear (dead) (7m): Reduce to 4m to reduce risk of failure

    Granted Trees 3 docs

  • 16 Grove Avenue, Hornsey, London, N10 2AR

    HGY/2025/3159 Submitted 17 Nov 2025 100 yards away

    T1 oak - reduce to previous reduction points and remove lower down epicormic growth from trunk and main scaffold branches

    Granted Trees 3 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