47 Silkfield Road London NW9 6QU

1. 30 Oct 2025

   Received by Barnet

2. 17 Nov 2025

   Decision issued: Lawful

3. 10 Aug 2026

   Added to PlanIndex

Barnet granted permission on 17 November 2025, 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.

• 48 Hillfield Avenue London NW9 6NX

  26/3587/HSE Submitted 5 Oct 2026 100 yards away

  77% historically approved · decision due ~30 Nov

  Single storey rear extension with 1no. rooflight. Alterations to ground floor side windows (amended description).

  Awaiting decision Householder Extension Loft or dormer +1
  Small domestic

• 32 Rushgrove Avenue London NW9 6QS

  26/0981/RCU Submitted 16 Mar 2026 100 yards away

  Change of use from single family dwelling to a 3 bedroom HMO and 1no. studio (Retrospective)

  Refused Amendments 11 docs
  Domestic

• 32 Rushgrove Avenue London NW9 6QS

  26/1093/RCU Submitted 23 Mar 2026 100 yards away

  Single storey detached outbuilding in rear garden for use as home office and gym (Retrospective)

  Granted Amendments 10 docs
  Small domestic

• 23 Rookery Close London NW9 6QJ

  25/3706/HSE Submitted 9 Sep 2025 150 yards away

  77% historically approved · decision due ~10 Nov

  First floor side extension

  Awaiting decision Householder Extension 9 docs
  Domestic

• 23 Rookery Close London NW9 6QJ

  25/5193/HSE Submitted 29 Dec 2025 150 yards away

  77% historically approved · decision due ~23 Feb

  First floor side extension

  Awaiting decision Householder Extension 9 docs
  Domestic

• 62 Rushgrove Avenue London NW9 6RB

  25/4107/191 Submitted 13 Oct 2025 150 yards away

  Use of existing outbuilding as 2no. self-contained flats

  Granted Lawful development New dwelling 7 docs

• 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