35 Orchard Avenue London N3 3NL

This site has had 3 applications since 2025.

• 26/0433/192 Awaiting decision

  35 Orchard Avenue London N3 3NL

  Roof extension involving hip to gable, rear dormer window, 1no. rear and 2no. front facing rooflights and new side gable window

  Submitted 5 Feb 2026 Lawful development
• 26/0434/HSE Awaiting decision

  35 Orchard Avenue London N3 3NL

  Single storey side and rear extension with 1no. rooflight and extension of the existing raised patio and associated balustrade and rear access steps following demolition of the existing garage and extension

  Submitted 4 Feb 2026 Householder

1. 1 Oct 2025

   Received by Barnet

2. 10 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 26 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.

• 35 Orchard Avenue London N3 3NL

  26/0433/192 Submitted 5 Feb 2026 50 yards away

  80% historically approved · decision due ~2 Apr

  Roof extension involving hip to gable, rear dormer window, 1no. rear and 2no. front facing rooflights and new side gable window

  Awaiting decision Lawful development Extension Loft or dormer +1 7 docs

• 35 Orchard Avenue London N3 3NL

  26/0434/HSE Submitted 4 Feb 2026 50 yards away

  77% historically approved · decision due ~2 Apr

  Single storey side and rear extension with 1no. rooflight and extension of the existing raised patio and associated balustrade and rear access steps following demolition of the existing garage and extension

  Awaiting decision Householder Extension Loft or dormer +1 7 docs
  Small domestic

• 1 Upper Cavendish Avenue London N3 3NN

  26/3472/HSE Submitted 24 Sep 2026 50 yards away

  77% historically approved · decision due ~19 Nov

  Remodelling of existing single storey rear extension including replacement of pitched roof with flat roof. First floor rear extension and installation of 2no. side facing rooflights

  Awaiting decision Householder Extension Loft or dormer
  Small domestic

• 44A Mountfield Road London N3 3NP

  21/4968/FUL Submitted 14 Sep 2021 100 yards away

  Roof extension involving side and rear dormer window with Juliette Balcony

  Refused Full applications Extension Loft or dormer +1 9 docs

• 44 Mountfield Road London N3 3NP

  26/1359/HSE Submitted 14 Apr 2026 100 yards away

  Existing rear extension parapet to be raised and capped with concrete coping stones. Green roof to new flat roof and addition of sliding doors and window to rear. Changes to side fenestration

  Granted Householder Extension Windows or glazing 17 docs
  Domestic

• 7 - 9 Holly Park Gardens London N3 3NG

  26/1357/CON Submitted 13 Apr 2026 150 yards away

  Submission of details of condition 4 (Materials) pursuant to planning permission 19/5642/FUL dated 17/12/2019

  Granted Conditions 12 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