345 Nether Street London N3 1JN

1. 7 Jan 2026

   Received by Barnet

2. 10 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 4 March 2026, 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.

• 18 Sellers Hall Close London N3 1JL

  26/0262/HSE Submitted 23 Jan 2026 50 yards away

  New front porch. Replacement of existing rear windows and doors including ground floor double doors and first floor windows with new balustrades to terrace area and 2no. second floor juliette balconies . Render finish to existing ground floor rear and side elevation

  Granted Householder Extension Windows or glazing 9 docs
  Small domestic

• 15 Sellers Hall Close London N3 1JL

  26/1446/HSE Submitted 20 Apr 2026 100 yards away

  77% historically approved · decision due ~19 Jun

  Extension of the existing outbuilding and replacement of flat roof with pitched roof to provide loft storage with internal access

  Awaiting decision Householder Extension 11 docs
  Small domestic

• 1 Lovers Walk London N3 1JH

  TPP/0485/26 Submitted 19 Aug 2026 150 yards away

  78% historically approved · decision due ~14 Oct

  1 x Sycamore (applicants ref. T1) - Remove trunk/epicormic growth and crown lift to provide up to 4m ground clearance, to improve clearance from access route and maintain a suitable pedestrian/vehicle clearance. Standing in T1 of Tree Preservation Order.

  Awaiting decision Trees

• 9 Lovers Walk London N3 1JH

  26/1447/HSE Submitted 20 Apr 2026 150 yards away

  Remodelling of the existing outbuilding including new access steps to garden level and replacement of flat roof with pitched roof to provide loft storage with internal access following removal of the existing wall

  Granted Householder 11 docs
  Small domestic

• Flat 2 29 The Grove London N3 1QT

  26/0680/FUL Submitted 23 Feb 2026 150 yards away

  Installation of ground floor side window

  Granted Full applications Windows or glazing 6 docs

• 11 Grove Avenue London N3 1QS

  26/1149/192 Submitted 26 Mar 2026 150 yards away

  Roof extension involving 1no. rear dormer window over main roof and 1no. rear dormer over outrigger roof with side window and 2no. front facing rooflights.

  Granted Lawful development Extension Loft or dormer +1 10 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