291-293 Archway Road, Hornsey, London, N6 5AA

1. 16 Jan 2026

   Received by Haringey

2. 27 Feb 2026

   Decision issued: Refuse

3. 24 Jul 2026

   Added to PlanIndex

Haringey refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. 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.

• Flat D, 271 Archway Road, Hornsey, London, N6 5AA

  HGY/2026/0479 Submitted 17 Aug 2026 50 yards away

  90% historically approved · decision due ~12 Oct

  Lawful development: Existing use of offices for shop at rear on ground and basement floors as one bedroom flat with separate external entrance.

  Awaiting decision Lawful development 5 docs

• 343 Archway Road, Hornsey, London, N6 5AA

  HGY/2026/0750 Submitted 17 Mar 2026 50 yards away

  T1 - Ash tree to fell to ground level

  Granted Trees 16 docs

• Flat 3, 14 Hillside Gardens, Hornsey, London, N6 5ST

  HGY/2026/2080 Submitted 19 Aug 2026 50 yards away

  90% historically approved · decision due ~14 Oct

  Replacement of existing timber-framed single-glazed windows with new timber-framed double-glazed windows on the front and rear elevations at first floor level.

  Awaiting decision Householder Windows or glazing 14 docs
  Domestic

• Flat A, 26, Hillside Gardens, London, N6 5ST

  CON/2021/0529 Submitted 18 Oct 2021 50 yards away

  Multi-stemmed Lime tree at bottom of garden: Reduce overall crown by up to 3 metres. Tree has been reduced previously.

  Granted Trees 6 docs

• Flat 1, 18 Hillside Gardens, Hornsey, London, N6 5ST

  HGY/2026/0901 Submitted 27 Mar 2026 50 yards away

  T1 Lime Reduce trees height from 16m to 10m (previous pruning points) Reduce crown spread by 2-3m

  Granted Trees 11 docs

• 9 Southwood Mansions, Southwood Lane, Hornsey, London, N6 5SZ

  HGY/2026/2180 Submitted 31 Jul 2026 50 yards away

  Front garden: fig (T1) - fell. Reason: An initial assessment (not a full arboricultual survey) indicates the tree is the likely cause of cracking in the pavement. The roots will continue to expand and so cracking will likely continue to worsen. Pruning will not significantly reduce damage over the medium term. The cracking can be seen extending towards the building. The tree is located around 2m from the building. British Geology Survey maps show the property sited on Claygate member clay which is not as shrinkable as London clay but is still considered to have medium to high shrinkability. This could be confirmed through lab soil tests. Considering the period of the building, the foundations are likely to be shallow strip foundations. This could be confirmed through exploratory digging.

  Decided Trees 15 docs

• 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