20 Ashurst Road London N12 9AX

1. 14 May 2026

   Received by Barnet

2. 18 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 15 Jun 2026

   Decision issued: Lawful

4. 16 Aug 2026

   Added to PlanIndex

Barnet granted permission on 15 June 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.

• Flat 2 2 Ashurst Road London N12 9AX

  26/1864/FUL Submitted 18 May 2026 50 yards away

  Roof extension with rear dormer with juliette balcony, outrigger dormer, 2no. side (1 to each side) and 3no. front facing rooflights

  Refused Full applications Extension Loft or dormer 18 docs

• 8 Petworth Road London N12 9HH

  25/3558/PNH Submitted 28 Aug 2025 100 yards away

  Single storey rear extension with proposed depth of 6.00 metres, maximum height of 4.00 metres and eaves height of 3.00 metres. Following demolition of existing outrigger.

  Withdrawn Prior approval Extension Demolition 9 docs
  Small domestic

• 8 Petworth Road London N12 9HH

  25/3874/HSE Submitted 22 Sep 2025 100 yards away

  77% historically approved · decision due ~17 Nov

  Single storey rear extension

  Awaiting decision Householder Extension 11 docs
  Small domestic

• 47 Horsham Avenue London N12 9BG

  25/3376/HSE Submitted 12 Aug 2025 100 yards away

  Single storey rear extension with flat roof and raised rooflight following demolition of existing lean-to extension. Roof extension including 1no. rear dormer window with juliette balcony and 2no. rooflights to front roofslope. Alterations to rear landscaping including new rear patio/paving

  Granted Householder Extension Loft or dormer +2 16 docs
  Small domestic

• 36 Horsham Avenue London N12 9BE

  26/0689/192 Submitted 23 Feb 2026 100 yards away

  Roof extension involving rear dormer window and 3no. front facing rooflights

  Granted Lawful development Extension Loft or dormer +1 4 docs

• 36 Horsham Avenue London N12 9BE

  26/0690/HSE Submitted 23 Feb 2026 100 yards away

  Single storey rear extension with new landing area with associated access steps following removal of the existing patio area

  Granted Householder Extension 8 docs
  Small domestic

• 26/2679/192 Granted

  21 Myddelton Park London N20 0JH

  Single storey rear extension and increase in ridge height of existing rear outrigger (Amended description).

  Received 20 Jul, published by the council 7 Aug 2026 Lawful development
• 26/1362/191 Refused

  145 Cotswold Gardens London NW2 1PL

  Use as a House in Multiple Occupation (HMO) for 6 people

  Received 14 Apr, published by the council 25 Jul 2026 Lawful development
• 26/1907/191 Granted

  8 Golders Manor Drive London NW11 9HT

  Use of the property as a self-contained residential unit at ground floor level and the first and second floors as a 4-bedroom, 4-person House in Multiple Occupation (Sui Generis) (AMENDED DESCRIPTION)

  Received 21 May, published by the council 16 Aug 2026 Lawful development
• 26/2392/192 Refused

  6 Mostyn Road Edgware HA8 0JD

  New front hardstanding and vehicular access to provide off-street parking

  Received 23 Jun, published by the council 9 Aug 2026 Lawful development
• 26/2059/192 Refused

  Low Ridge Rowley Lane Barnet EN5 3HS

  Erection of a rear outbuilding

  Received 3 Jun, published by the council 16 Aug 2026 Lawful development