30 Mansfield Avenue, Tottenham, London, N15 4HW

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

• HGY/2026/0490 Granted

  30 Mansfield Avenue, Tottenham, London, N15 4HW

  Certificate of Lawfulness for proposed rear dormer extension and front rooflights to facilitate loft conversion

  Decided 11 Mar 2026 Lawful development

1. 8 Apr 2026

   Received by Haringey

2. 22 May 2026

   Decision issued: Permitted Development

3. 24 Jul 2026

   Added to PlanIndex

Haringey granted permission on 22 May 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.

• 30 Mansfield Avenue, Tottenham, London, N15 4HW

  HGY/2026/0490 Submitted 23 Feb 2026 0m away

  Certificate of Lawfulness for proposed rear dormer extension and front rooflights to facilitate loft conversion

  Granted Lawful development Extension Loft or dormer 8 docs

• 4 Bourn Avenue, Tottenham, London, N15 4HP

  HGY/2025/2836 Submitted 13 Feb 2026 60m away

  Change of Use from single family dwelling (class C3) to House in Multiple Occupation (Class C4) for up to 4 people.

  Refused Full applications 8 docs
  Domestic

• 4 Bourn Avenue, Tottenham, London, N15 4HP

  HGY/2026/1385 Submitted 29 May 2026 60m away

  Change of use from a single-dwelling house (C3) to a HMO (C4) for 4 persons

  Refused Full applications 11 docs
  Domestic

• 5, 7, & 9 Dorset Road, Tottenham, London, N15 5AJ

  HGY/2026/1541 Submitted 7 Jul 2026 88m away

  Replacing existing single-glazed timber windows at 5, 7 and 9 Dorset Road with slimline double‑glazed timber units to the front elevation and double‑glazed uPVC vertical sliding and casement windows to the rear and side elevations; Roof works at no. 7 replacing existing slate roof with new natural Welsh slate, and associated repairs to chimneys, soffits and rainwater goods.

  Granted Householder Roofing Windows or glazing 13 docs
  Domestic

• 306 Philip Lane, Tottenham, London, N15 4AB

  HGY/2026/1173 Submitted 27 Apr 2026 110m away

  Erection of a ground floor rear extension

  Granted Householder Extension 4 docs
  Domestic

• 290 Philip Lane, Tottenham, London, N15 4AB

  HGY/2023/0143 Submitted 16 Jan 2023 110m away

  Meets the requirements of the GPDO: Demolition of existing dormer and construction of new rear dormer

  Granted Lawful development Loft or dormer Demolition 5 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.

  20 Jul 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).

  18 May 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.

  7 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)

  10 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.

  4 Sep 2026 Lawful development