11 Clarendon Gardens London NW4 4UU

1. 19 May 2026

   Received by Barnet

2. 13 Jul 2026

   Decision issued: Lawful

3. 16 Aug 2026

   Added to PlanIndex

The council has decided this application; the published outcome sits in the record above and the decision notice on the council portal carries the detail, including any conditions.

If permission was granted, work must normally begin within three years of the decision. If it was refused, the applicant can appeal within the statutory time limit or submit a revised scheme.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 11 Clarendon Gardens London NW4 4UU

  26/2017/HSE Submitted 29 May 2026 16m away

  Part single storey, part first floor rear extension with pitched roof

  Refused Householder Extension 12 docs
  Small domestic

• 105 Southfields London NW4 4NA

  26/1520/192 Submitted 23 Apr 2026 80m away

  Roof extension involving hip to gable, rear dormer window with juliette balcony, 3no. front facing rooflights and new side and rear gable window

  Decided Lawful development Extension Loft or dormer +1 4 docs

• 8 Southfields London NW4 4ND

  26/1197/HSE Submitted 30 Mar 2026 88m away

  New front hardstanding and relocation of the vehicular access to provide 2no. off-street parking spaces. Single storey rear extension with new patio area and access steps

  Granted Householder Extension 15 docs
  Small domestic

• 2 Southfields London NW4 4ND

  25/4242/192 Submitted 23 Oct 2025 88m away

  Internal alterations to second floor layout to change 1no. bathroom to a study room

  Withdrawn Lawful development 4 docs

• 2 Southfields London NW4 4ND

  25/4398/CON Submitted 4 Nov 2025 88m away

  Submission of details of conditions 5 (Obscure Glazing/Opening Restrictions), 6 (Parking Spaces/Driveways/Footpaths), 8 (Boundary Treatment) and 10 (Water Consumption) pursuant to appeal decision APP/N5090/W/18/3210297 (planning ref. 18/3288/FUL) dated 03/04/19

  Granted Conditions Windows or glazing 17 docs

• 2 Southfields London NW4 4ND

  25/4502/NMA Submitted 11 Nov 2025 88m away

  Non material amendment to planning appeal APP/N5090/W/18/3210297 dated 03/04/2019 planning ref 18/3288/FUL for `Erection of 2 new 2 storey 4-bed semi-detached single family dwellinghouses with rooms in the roofspace and associated car parking, refuse and cycle storage following demolition of the previously existing house.` Amendments include internal alterations to second floor layout to change 1no. bathroom to a study room

  Granted Amendments Demolition 3 docs

• 26/2679/192 Decided

  21 Myddelton Park London N20 0JH

  Single storey rear extension and increase in ridge height of existing rear outrigger (Amended description).

  20 Jul 2026 Lawful development
• 26/1907/191 Decided

  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)

  21 May 2026 Lawful development
• 26/2059/192 Decided

  Low Ridge Rowley Lane Barnet EN5 3HS

  Erection of a rear outbuilding

  3 Jun 2026 Lawful development
• 26/2066/192 Decided

  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)

  3 Jun 2026 Lawful development
• 26/1663/192 Decided

  152 Deans Lane Edgware HA8 9NT

  Change of use from single family dwellinghouse (Class C3a) to supported living accommodation Class C3b)

  5 May 2026 Lawful development