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 50 yards 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 50 yards 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

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

  HGY/2022/3449 Submitted 28 Sep 2022 50 yards away

  Demolition of garage and erection of single storey front and side extensions.

  Granted Householder Extension Demolition 11 docs
  Small domestic

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

  HGY/2026/1385 Submitted 29 May 2026 50 yards 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 100 yards 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

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

  HGY/2023/0144 Submitted 16 Jan 2023 100 yards away

  Demolition of existing dormer and construction of new rear dormer.

  Granted Householder Loft or dormer Demolition 5 docs
  Domestic

• 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