20 Sherrock Gardens London NW4 4JJ

1. 30 Oct 2025

   Received by Barnet

2. 10 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 25 December 2025, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Barnet took a median of 46 days over the applications it decided in the last year.

This application is with Barnet for determination, against a statutory target of eight weeks. Over the last year Barnet decided lawful development applications in a median of 28 days. More in our guide to how long planning decisions take.

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.

• 32 Newark Way London NW4 4JL

  21/5870/192 Submitted 4 Nov 2021 100 yards away

  Roof extension involving hip to gable, rear dormer window and 2no front facing rooflights

  Granted Lawful development Extension Loft or dormer +1 20 docs

• 216 Watford Way London NW4 4UA

  26/1428/HSE Submitted 17 Apr 2026 150 yards away

  77% historically approved · decision due ~12 Jun

  First floor rear extension with pitched roof. Roof extension involving hip to gable, rear dormer window and 3no. front facing rooflights

  Awaiting decision Householder Extension Loft or dormer +1 9 docs
  Domestic

• 226 Watford Way London NW4 4UA

  26/0103/192 Submitted 13 Jan 2026 200 yards away

  New front porch

  Granted Lawful development Extension 6 docs
  Small domestic

• 40 Selborne Gardens London NW4 4SJ

  24/1863/PNH Submitted 13 May 2024 200 yards away

  Single storey rear extension with a proposed depth of 6m, maximum height of 3m and eaves height of 3m.

  Granted Prior approval Extension 9 docs
  Small domestic

• 32 Selborne Gardens London NW4 4SJ

  25/3960/191 Submitted 30 Sep 2025 200 yards away

  80% historically approved · decision due ~26 Nov

  Use as rear granny annexe

  Awaiting decision Lawful development 5 docs

• Rear Of 69 Greyhound Hill London NW4 4JN

  26/1035/FUL Submitted 18 Mar 2026 200 yards away

  Demolition of the existing outbuilding and erection of a single storey detached dwelling with green roof. Associated landscaping and cycle storage

  Refused Full applications New dwelling Demolition 6 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