16 Alexandra Grove London N12 8NU

1. 8 Sep 2025

   Received by Barnet

2. 12 Sep 2025

   Validated

   Checked as complete and ready for consideration.

3. 10 Aug 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 7 November 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.

• Neptune House 2A Alexandra Grove London N12 8NU

  26/3600/FUL Submitted 5 Oct 2026 50 yards away

  63% historically approved · decision due ~1 Dec

  Single-storey upward mansard roof extension to provide additional Class E office accommodation, with a recessed balcony within the roof slope, associated internal alterations including a new passenger lift

  Awaiting decision Full applications Extension Loft or dormer
  Small domestic

• 11 Thyra Grove London N12 8HB

  25/5143/PNH Submitted 22 Dec 2025 100 yards away

  56% historically approved · decision due ~16 Feb

  Single storey rear extension with a proposed depth of 6.00m, maximum height of 3.98m and eaves height of 2.98m following the demolition of the existing conservatory

  Awaiting decision Prior approval Extension Demolition 7 docs
  Small domestic

• 11 Thyra Grove London N12 8HB

  26/2208/PNH Submitted 15 Jun 2026 100 yards away

  2No. single storey rear extensions with a proposed depth of 6.00m, maximum height of 3.98m and eaves height of 2.98m following the demolition of the existing conservatory.

  Granted Prior approval Extension Demolition 9 docs
  Small domestic

• 273 Ballards Lane London N12 8NR

  26/2019/FUL Submitted 1 Jun 2026 100 yards away

  Installation of a minivac plant within an acoustic enclosure to the existing service yard

  Refused Full applications 14 docs

• 11 Thyra Grove London N12 8HB

  26/3576/HSE Submitted 2 Oct 2026 100 yards away

  77% historically approved · decision due ~27 Nov

  Single storey rear extension with new patio area. Changes to ground floor side fenestration

  Awaiting decision Householder Extension Windows or glazing
  Small domestic

• 273 Ballards Lane London N12 8NR

  26/1801/ADV Submitted 13 May 2026 100 yards away

  Installation of various signage including 4no. internally illuminated LED building letters to front and side elevation. 2no. non illuminated fascia signs, 1no. internally illuminated totem pile. Installation of 1no. frosted W, 4no. window vinyls Installation of 3no. wall mounted signs and various car park signage

  Granted Advertising Windows or glazing 5 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