65 Muswell Hill Place, Hornsey, London, N10 3RP

1. 15 Dec 2025

   Received by Haringey

2. 21 Jan 2026

   Decision issued: Permitted Development

3. 24 Jul 2026

   Added to PlanIndex

Haringey granted permission on 21 January 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.

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.

• 67 Muswell Hill Place, Hornsey, London, N10 3RP

  HGY/2023/0274 Submitted 27 Jan 2023 50 yards away

  Certificate of lawfulness for the formation of a rear dormer, hip to gable extension including the insertion of 3 front rooflights - proposed use

  Granted Lawful development Extension Loft or dormer 15 docs

• 47 Muswell Hill Place, Hornsey, London, N10 3RP

  HGY/2026/1830 Submitted 30 Jun 2026 50 yards away

  91% historically approved · decision due ~25 Aug

  Erection of a single storey rear extension and alterations to the rear garden.

  Awaiting decision Householder Extension 4 docs
  Small domestic

• 35, Muswell Hill Place, London, N10 3RP

  HGY/2021/2403 Submitted 27 Jul 2021 50 yards away

  Replacement of existing front porch with new front porch (certificate of lawfulness: proposed use)

  Granted Lawful development Extension 14 docs
  Small domestic

• 71 Hillfield Park, Hornsey, London, N10 3QU

  HGY/2022/4515 Submitted 22 Dec 2022 100 yards away

  Replacement of existing single glazed windows and doors to the ground floor flat with new timber double glazed windows and doors to match the existing.

  Granted Full applications Windows or glazing 12 docs

• 65, St James's Lane, London, N10 3QY

  HGY/2021/1793 Submitted 22 Jun 2021 100 yards away

  Creation of mono-pitch roof above existing single storey side garage, single storey upper ground floor rear extension, re-paving of front garden with new steps and balustrades to front entrance, re-cladding of rear dormer with natural blue slate.

  Granted Full applications Extension Loft or dormer 12 docs
  Small domestic

• Risborough Close, Muswell Hill, Hornsey, London, N10 3PL

  HGY/2025/2818 Submitted 14 Oct 2025 150 yards away

  Construction of a two storey side addition to create 1 x 1 bedroom unit.

  Refused Full applications 18 docs

• HGY/2026/2042 Granted

  Flat B, 101 Talbot Road, Hornsey, London, N6 4QX

  Certificate of Lawfulness (proposed) for replacement of existing first-floor front elevation windows with new like-for-like timber double-glazed windows.

  Received 20 Jul, published by the council 10 Aug 2026 Lawful development
• HGY/2026/1396 Granted

  15 Pellatt Grove, Wood Green, London, N22 5NP

  Certificate of lawfulness for the existing use of the property as a 6-bedroom House in Multiple Occupation (HMO) for up to six occupants (Class C4 use).

  Received 18 May, published by the council 24 Jul 2026 Lawful development
• HGY/2026/2471 Awaiting decision

  20 Bancroft Avenue, Hornsey, London, N2 0AS

  Lawful development: Proposed use. erection 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
• HGY/2026/1951 Granted

  105 Alexandra Road, Wood Green, London, N8 0LG

  Certificate of Lawfulness (existing) for continued use of property as two flats (C3)

  Received 10 Jul, published by the council 24 Jul 2026 Lawful development
• HGY/2026/2416 Awaiting decision

  Vincent House, 1A Vincent Road, Tottenham, London, N15 3QA

  Certificate of Lawfulness: Existing use of the property as six self-contained flats.

  Received 4 Sep, published by the council 7 Sep 2026 Lawful development