48 Highfield Avenue London NW11 9UD

This site has had 2 applications since 2026: 1 approved, 0 refused.

• 26/0856/HSE Granted

  48 Highfield Avenue London NW11 9UD

  Single storey rear infill extension with access steps to garden level. First floor rear extension

  Decided 11 May 2026 Householder

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 43 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 prior approval applications in a median of 36 days. More in our guide to how long planning decisions take.

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.

• 48 Highfield Avenue London NW11 9UD

  26/0856/HSE Submitted 6 Mar 2026 8m away

  Single storey rear infill extension with access steps to garden level. First floor rear extension

  Granted Householder Extension 6 docs
  Small domestic

• First Floor Flat 11 St Marys Road London NW11 9UE

  26/1713/FUL Submitted 7 May 2026 52m away

  60% historically approved · decision due ~8 Jul

  Roof extension involving rear dormer window 1no. rear and 3no. front facing rooflights

  Awaiting decision Full applications Extension Loft or dormer +1 8 docs

• First Floor Flat 11 St Marys Road London NW11 9UE

  26/2476/FUL Submitted 30 Jun 2026 63m away

  60% historically approved · decision due ~25 Aug

  Roof extension involving rear dormer and 1no. rear and 3no. front facing rooflights

  Awaiting decision Full applications Extension Loft or dormer

• 57 Woodville Road London NW11 9TS

  26/2832/PNH Submitted 31 Jul 2026 96m away

  58% historically approved · decision due ~25 Sep

  2no. Single storey rear extensions with a proposed depth of 6.00 metres, maximum height of 3.00 metres and eaves height of 3.00 metres.

  Awaiting decision Prior approval Extension
  Small domestic

• 36 Western Avenue London NW11 9HJ

  26/2957/HSE Submitted 10 Aug 2026 131m away

  77% historically approved · decision due ~27 Oct

  Single storey rear and infill extension with new roof and 2no. rooflights and solar panels and shading. Extension of the existing shed and installation of air conditioning unit

  Awaiting decision Householder Extension Loft or dormer +1 12 docs
  Small domestic

• 17 Western Avenue London NW11 9HE

  25/4041/HSE Submitted 6 Oct 2025 158m away

  Part single, part two storey rear and single storey side extensions. Roof extension with side/rear wraparound dormers with 4no. front facing rooflights and new side gable window

  Granted Householder Extension Loft or dormer +1 17 docs
  Small domestic

• 26/3224/PNH Awaiting decision

  Low Ridge Rowley Lane Barnet EN5 3HS

  Single storey rear extension with a proposed depth of 8.00 metres, maximum height of 3.00 metres and eaves height of 3.00 metres.

  3 Sep 2026 Prior approval
• 26/3218/PNH Awaiting decision

  22 Highcroft Gardens London NW11 0LX

  2no. Single storey rear extensions with a proposed depth of 6.00 metres, maximum height of 3.00 metres and eaves height of 3.00 metres, and depth of 3.05 metres, maximum height of 3.00 metres and eaves height of 3.00 metres respectively, following demolition of existing roofed patio.

  2 Sep 2026 Prior approval
• 26/3212/PNH Awaiting decision

  10 Richmond Road Barnet EN5 1SB

  Single storey rear extension with a proposed depth of 5.54 metres, maximum height of 3.50 metres and eaves height of 3.00 metres.

  2 Sep 2026 Prior approval
• 26/3183/PNH Awaiting decision

  34 Selvage Lane London NW7 3SP

  Single storey rear extension with a proposed depth of 3.80 metres, maximum height of 3.00 metres and eaves height of 2.75 metres, following partial demolition of existing side manifestation.

  1 Sep 2026 Prior approval
• 26/3194/PNH Awaiting decision

  74 Windsor Drive Barnet EN4 8UD

  Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 3.00 metres and eaves height of 2.60 metres, following demolition of the existing rear extension.

  31 Aug 2026 Prior approval