24 Northcott Avenue, Wood Green, London, N22 7DB

1. 12 Jan 2023

   Received by Haringey

2. 1 Mar 2023

   Decision issued: Permitted Development

3. 23 Sep 2026

   Added to PlanIndex

Haringey granted permission on 1 March 2023, 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.

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.

• 18 Northcott Avenue, Wood Green, London, N22 7DB

  HGY/2026/2337 Submitted 19 Aug 2026 50 yards away

  91% historically approved · decision due ~14 Oct

  Certificate of Lawfulness (proposed) for amalgamation of two flats back into a single family dwelling.

  Awaiting decision Lawful development New dwelling 4 docs
  Several homes

• 30, Northcott Avenue, London, N22 7DB

  HGY/2021/2382 Submitted 19 Jul 2021 50 yards away

  Certificate of lawfulness: Construction of full width dormer extension at loft level.

  Granted Lawful development Extension Loft or dormer 13 docs

• 25 Cornwall Avenue, Wood Green, London, N22 7DA

  HGY/2025/2116 Submitted 10 Sep 2025 50 yards away

  Non-Material Amendment to the application HGY/2025/0964 for 'erection of a single-storey ground floor rear extension and replacement of an existing garden room' as approved on 22/05/2025 for the increase of depth of the approved rear extension by 0.5 metres and retention of the pre-existing outrigger.

  Granted Amendments Extension 14 docs
  Small domestic

• 17 Cornwall Avenue, Wood Green, London, N22 7DA

  HGY/2023/0415 Submitted 10 Feb 2023 50 yards away

  Certificate of Lawfulness for proposed single storey rear extension

  Granted Lawful development Extension 8 docs
  Small domestic

• 13 Cornwall Avenue, Wood Green, London, N22 7DA

  HGY/2022/4516 Submitted 22 Dec 2022 50 yards away

  Certificate of lawfulness for the existing use of the property as two separate self-contained flats comprising a 1-bedroom ground-floor flat with access to the rear garden and a 1-bedroom first-floor flat.

  Granted Lawful development New dwelling 6 docs

• 17 Cornwall Avenue, Wood Green, London, N22 7DA

  HGY/2023/0567 Submitted 24 Feb 2023 50 yards away

  Erection of single storey extension which extends beyond the rear wall of the original house by 3.66m, for which the maximum height would be 3.2m and for which the height of the eaves would be 2.99m

  Decided Prior approval Extension 8 docs
  Small domestic

• HGY/2026/0445 Awaiting decision

  21 Arcadian Gardens, Wood Green, London, N22 5AG

  Lawful development: Existing use. The building at No. 21 Arcadian Gardens is and has been in use as a Use Class C4 House in Multiple Occupation.

  Received 22 Sep, published by the council 23 Sep 2026 Lawful development
• HGY/2026/2109 Granted

  39 Coldfall Avenue, Hornsey, London, N10 1HS

  Certificate of Lawfulness (Proposed): Construction of a single-storey rear infill extension; formation of a rear roof dormer in connection with the conversion of the existing loft to habitable accommodation; installation of rooflights to the front roof slope; installation of associated windows and doors; internal alterations; and all associated building works.

  Received 27 Jul, published by the council 10 Aug 2026 Lawful development
• HGY/2026/1593 Refused

  Flats A/B/C 103 Myddleton Road, Wood Green, London, N22 8NE

  Certificate of lawfulness for the existing use of the property as 3x self-contained flats (comprising of (Flat A) 1x 2 bed flat, (Flat B) 1x 1 bed flat and (Flat C) 1x 3 bed flat in the outbuilding) for more than 4 years.

  Received 5 Jun, published by the council 24 Jul 2026 Lawful development
• HGY/2026/1925 Granted

  66 Summerhill Road, Tottenham, London, N15 4HG

  Certificate of Lawfulness: Existing use as a Class C4 HMO for up to 6 unrelated individuals

  Received 22 Jul, published by the council 24 Jul 2026 Lawful development
• HGY/2026/2471 Granted

  20 Bancroft Avenue, Hornsey, London, N2 0AS

  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.

  Received 7 Sep, published by the council 17 Sep 2026 Lawful development