9A Rosslyn Avenue Barnet EN4 8DH

1. 16 Mar 2026

   Received by Barnet

2. 14 Apr 2026

   Decision issued: Lawful

3. 25 Jul 2026

   Added to PlanIndex

Barnet granted permission on 14 April 2026, 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.

• 11 Rosslyn Avenue Barnet EN4 8DH

  25/5160/HSE Submitted 23 Dec 2025 50 yards away

  77% historically approved · decision due ~17 Feb

  Single storey front and rear extension and extension of existing patio area. Raising of the side garage roof. Changes to fenestration and creation of new openings

  Awaiting decision Householder Extension Windows or glazing 10 docs
  Small domestic

• 11 Rosslyn Avenue Barnet EN4 8DH

  25/4618/192 Submitted 19 Nov 2025 50 yards away

  Roof extension involving hip to gable to both sides, rear dormer window with 3 front facing rooflights following demolition of existing chimney on rear roofslope.

  Granted Lawful development Extension Loft or dormer +2 10 docs

• 33 Rosslyn Avenue Barnet EN4 8DH

  26/3216/NMA Submitted 2 Sep 2026 100 yards away

  69% historically approved · decision due ~2 Nov

  Non-material amendments to planning permission reference 24/1856/HSE dated 10/07/24 for 'Single storey rear extension with new raised terrace area with associated access steps'. Amendments include change to size of door opening and colour of proposed rear door frame

  Awaiting decision Amendments Extension
  Small domestic

• 28 Church Hill Road Barnet EN4 8TB

  26/1300/FUL Submitted 8 Apr 2026 100 yards away

  61% historically approved · decision due ~3 Jun

  Single storey rear infill extension following the demolition of existing lean to extension. Raising of existing rear extension roof. Conversion of existing store room to bin storage area with new double doors

  Awaiting decision Full applications Extension Demolition 19 docs
  Small domestic

• 62 Capel Road Barnet EN4 8JE

  26/1337/192 Submitted 10 Apr 2026 150 yards away

  Erection of a rear outbuilding

  Granted Lawful development 7 docs

• Winston House 53 - 63 Church Hill Road Barnet EN4 8SZ

  26/0862/LIC Submitted 6 Mar 2026 150 yards away

  Removal and replacement of 3no. antennas, the relocation of 1no. existing GPS node and other associated ancillary development thereto

  Decided

• 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
• 26/1907/191 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
• 26/2059/192 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
• 26/2066/192 Granted

  355 Hendon Way London NW4 3NB

  Roof extension involving rear dormer window and 3no. front facing rooflights. Removal of chimney on rear elevation (AMENDED DESCRIPTION)

  Received 3 Jun, published by the council 16 Aug 2026 Lawful development
• 26/2525/192 Granted

  39 Ridgeway Avenue Barnet EN4 8TN

  Single storey rear extension

  Received 6 Jul, published by the council 9 Aug 2026 Lawful development