17 Thornton Way London NW11 6SE

1. 27 Oct 2025

   Received by Barnet

2. 28 Oct 2025

   Validated

   Checked as complete and ready for consideration.

3. 10 Aug 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 23 December 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 householder applications in a median of 56 days. More in our guide to how long planning decisions take.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 20 Middleway London NW11 6SP

  26/1464/HSE Submitted 20 Apr 2026 50 yards away

  External decorations including alterations to pipework, replacement lighting and cctv. New side entrance door with small porch roof to match existing bay window roof with new heritage rooflight above. Replacement new front door to match existing. Replacement of 1no. set of (garden facing) French doors with windows to match adjacent and replacement of 2no. garden sheds with 1no. garden shed. Installation of a new airsource heat pump and vehicular charging point. (AMENDED DESCRIPTION)

  Granted Householder Extension Loft or dormer +1 9 docs
  Small domestic

• 23 Middleway London NW11 6SN

  TCP/0508/25 Submitted 15 Aug 2025 50 yards away

  1 x Rowan Mountain Ash - Reduce crown by approximately 10% and thin out by 1-1.5 metres. 1 x Apple - Reduce crown by approximately 10% by 1 metre. 1 x Plum - Reduce crown by approximately 10% and thin out by 1-1.5 metres.

  Decided Trees 4 docs

• 23 Middleway London NW11 6SN

  TCP/0051/26 Submitted 26 Jan 2026 50 yards away

  88% historically approved · decision due ~23 Mar

  1 x Rowan - Fell to gound level. Exempt work.

  Awaiting decision Trees 1 doc

• 20 Middleway London NW11 6SP

  TCP/0644/26 Submitted 13 Oct 2026 50 yards away

  79% historically approved · decision due ~8 Dec

  2 X Pittosporum (applicant ref T1) - Felling to ground level and stump grinding. 1 X Holly (applicant ref T2) - Felling to ground level and stump grinding. 1 X Bay (applicant ref T3) - Felling to ground level and stump grinding. 1 X Maple (applicant ref T4) - Crown reduction by 2m in height bringing lateral growth to shape by 1m, leaving the tree a standing height by 4m. 1 X Rowan (applicant ref T5) - Felling to ground level and stump grinding.

  Awaiting decision Trees

• 35 Southway London NW11 6RX

  TCP/0658/25 Submitted 7 Oct 2025 100 yards away

  88% historically approved · decision due ~2 Dec

  1 x Mature Oak (applicants ref. T1) - Crown thin density by 25%, reduce back to clear building by 2 metres and lift by 4.2 metres. 1 x Sycamore (applicants ref. T2) - Remove 1 low lateral branch into main stem and shorten 2 Lateral branches by 1 metre into budding shoots.

  Awaiting decision Trees 3 docs

• 15 Middleway London NW11 6SN

  TCP/0797/25 Submitted 26 Nov 2025 100 yards away

  88% historically approved · decision due ~21 Jan

  1 x Mature Beech (applicants ref. T1) - Approximately 9.00m. Reduce overlong branches which protrude from the crown back into the main crown structure, effectively reducing the crown by approximately 1.20m all round. Thin crown density throughout by 20-25%. Remove dead wood and epicormic growth. General maintenance. 1 x Birch (applicants ref. T2) - Approximately 6.00m. Reduce crown by approximately 1.20m, Thin crown density by 20%. Raise crown by 1.20m. General maintenance.

  Awaiting decision Trees 4 docs

• 26/3827/HSE Awaiting decision

  43 Hermitage Lane London NW2 2HE

  Single storey rear extension with 3no. rooflights following demolition of the existing conservatory. Replacement front bay window and entrance porch. First floor rear juliette balcony. Changes to fenestration including new window openings and enlarged front rooflight

  22 Oct 2026 Householder
• 26/3833/HSE Awaiting decision

  47 Holne Chase London N2 0QG

  Single storey rear extension. Replacement of single glazed windows with double glazing. Alterations to side/rear fenestration. Alterations and replacement of existing rear dormer window addition of 2no. side dormer windows and 3no. rooflights. Installation of cameras and wall lights. Replacement of the front entrance and garage doors, installation of timber side garden gates

  22 Oct 2026 Householder
• 26/3815/HSE Awaiting decision

  17 Hurstwood Road London NW11 0AS

  Single storey rear extension

  21 Oct 2026 Householder
• 26/3800/HSE Awaiting decision

  29 Monks Avenue Barnet EN5 1BZ

  Single storey side and rear infill extension including new front porch following demolition of the side/rear storage.

  Received 20 Oct, published by the council 21 Oct 2026 Householder
• 26/3791/HSE Awaiting decision

  149 Montrose Avenue Edgware HA8 0DZ

  New front hardstanding and vechicular access to provide off-street parking

  Received 20 Oct, published by the council 21 Oct 2026 Householder