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Planning application

HGY/2024/2435

7 Elm Grove, Hornsey, London, N8 9AH

Granted Haringey Lawful development: Proposed use

Proposal

Certificate of Lawful Development (Proposed Use) for the erection of a rear dormer extension on the main roof.

As published by the council, reference HGY/2024/2435

Timeline

Dates from the published record

  1. 4 Sep 2024

    Received by Haringey

  2. 31 Oct 2024

    Decision issued: Permitted Development

  3. 25 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

About lawful development applications

How this application type works

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

Nearby applications

Within 500 metres

  • HGY/2024/2199 Granted

    27 Elm Grove, Hornsey, London, N8 9AH

    Construction of a new patio area

    9 Sep 2024 0m away Householder
  • HGY/2025/3362 Granted

    29 Elm Grove, Hornsey, London, N8 9AH

    Replacement of existing Timber windows with timber and modern double glazed uPVC units.

    22 Dec 2025 0m away Householder
  • HGY/2026/1684 Awaiting decision

    19 Elm Grove, Hornsey, London, N8 9AH

    Replacement of the existing conservatory with a new ground floor rear extension.

    29 Jun 2026 0m away Householder
  • HGY/2024/2697 Granted

    27 Elm Grove, Hornsey, London, N8 9AH

    Non-Material Amendment to planning permission HGY/2022/1636 to move the face of the rear dormer to align with the short section of the wall below, retaining a row of tiles and brick corbelling to match existing.

    7 Oct 2024 0m away Amendments
  • HGY/2025/3599 Granted

    Flat 2, 37 Womersley Road, Hornsey, London, N8 9AP

    Enlargement of an existing dormer, replacement of roof terrace balustrades, replacement of windows and reinstatement of stone balustrade detail to front window bay

    29 Dec 2025 62m away Full applications
  • HGY/2025/3602 Granted

    24 Elm Grove, Hornsey, London, N8 9AJ

    Works to tree protected by a TPO. T3- Mulberry tree - prune back to previous historic pruning points ( approximately 3.5m reduction).

    29 Dec 2025 73m away Trees

In Haringey

  • HGY/2026/2104 Granted

    17 Sperling Road, Tottenham, London, N17 6UQ

    Certificate of lawfulness for proposed use: Loft conversion with erection of rear L-shaped dormer and insertion of 2no. front rooflights.

    23 Jul 2026 Lawful development
  • HGY/2026/1307 Granted

    49 Lordsmead Road, Tottenham, London, N17 6EX

    Certificate of lawfulness for the existing use of the property as five separate self-contained flats.

    8 May 2026 Lawful development
  • HGY/2026/1885 Granted

    6, Grainger Road, London, N22 5LT

    Certificate of Lawfulness: Proposed alterations to the roof comprising the installation of 3no. rooflights (2no. front facing and 1no. rear facing).

    6 Jul 2026 Lawful development
  • HGY/2026/1375 Granted

    Flats 1, 2, & 3 149 Crescent Road, Wood Green, London, N22 7RU

    Certificate of lawfulness for the existing use of the property as 3 self-contained flats (comprising of ground floor 2 bed, first floor 2 bed, second floor 1 bed) for more than 4 years.

    14 May 2026 Lawful development
  • HGY/2026/1409 Granted

    492 Archway Road, Hornsey, London, N6 4NA

    Certificate of Lawfulness Existing Use. Use of lower ground floor as two flats (Use Class C3).

    19 May 2026 Lawful development