11 Tretawn Park London NW7 4PS

This site has had 3 applications since 2026: 0 approved, 1 refused.

• 26/2758/RCU Awaiting decision

  11 Tretawn Park London NW7 4PS

  Single storey side extension with 2no. additional rooflights (Retrospective application)

  Submitted 24 Jul 2026
• 26/2213/192 Refused

  11 Tretawn Park London NW7 4PS

  Single storey side extension with 2no. additional rooflights [Amended Description]

  Decided 20 Jul 2026 Lawful development

1. 12 May 2026

   Received by Barnet

2. 25 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 7 July 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 44 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 amendment applications in a median of 41 days. More in our guide to how long planning decisions take.

An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.

• 11 Tretawn Park London NW7 4PS

  26/2213/192 Submitted 15 Jun 2026 2m away

  Single storey side extension with 2no. additional rooflights [Amended Description]

  Refused Lawful development Extension Loft or dormer 20 docs
  Small domestic

• 11 Tretawn Park London NW7 4PS

  26/2758/RCU Submitted 24 Jul 2026 18m away

  79% historically approved · decision due ~2 Oct

  Single storey side extension with 2no. additional rooflights (Retrospective application)

  Awaiting decision Extension Loft or dormer
  Small domestic

• 15 Tretawn Park London NW7 4PS

  TPP/0423/26 Submitted 20 Jul 2026 18m away

  79% historically approved · decision due ~14 Sep

  1 x Yew (applicants ref. T1) - Fell. Standing in Group G2 of Tree Preservation Order. (Exempt 5 day notice)

  Awaiting decision Trees

• 1 Tretawn Park London NW7 4PS

  25/5166/HSE Submitted 24 Dec 2025 91m away

  77% historically approved · decision due ~4 Mar

  Two storey front extension and part single, part two storey side and rear extension with first floor juliette balcony to front elevation and first floor balconies to front and rear elevations, following demolition of existing garage and conservatory. Associated alterations to roof including increase in ridge height

  Awaiting decision Householder Extension Roofing +1 11 docs
  Small domestic

• 1 Tretawn Park London NW7 4PS

  25/3952/HSE Submitted 29 Sep 2025 91m away

  77% historically approved · decision due ~28 Nov

  Two storey front extension and part single, part two storey side and rear extension with first floor balconies to front and rear elevations, following demolition of existing garage and conservatory. Associated alterations to roof including increase in ridge height

  Awaiting decision Householder Extension Roofing +1 14 docs
  Small domestic

• 60 Lawrence Avenue London NW7 4NN

  26/0743/192 Submitted 26 Feb 2026 110m away

  Roof extension with rear dormer, 2no. Front facing rooflights and 1no. side facing rooflight (amended)

  Granted Lawful development Extension Loft or dormer 4 docs

• 26/3330/NMA Awaiting decision

  Mar House 50 The Hyde London NW9 5NG

  Non material amendment to planning permission 22/1932/FUL dated 06/02/2024 for 'Change of use of ground floor from a use within Class E (retail), and construction of mezzanine floor, to provide a Class C1 Use (hotels) over both floors. Creation of new commercial units for a use within Class E (retail) and ancillary bar/restaurant facilities and associated external changes'. Amendments includes alterations to the wording of the proposed development

  11 Sep 2026 Amendments
• 26/3315/NMA Awaiting decision

  76 Windermere Avenue London N3 3RA

  Non material amendment to planning permission original ref 26/2420/HSE dated 24/08/2026 for 'Erection of a rear outbuilding including raised platform'. Amendments includes changes to landscape and levels

  Received 10 Sep, published by the council 14 Sep 2026 Amendments
• 26/3297/NMA Awaiting decision

  75 Wise Lane London NW7 2RH

  Non-material amendments to planning permission reference 17/2583/FUL dated 16/08/17 for 'Erection of a two storey detached residential dwelling with rooms in roofspace, following the demolition of existing two storey detached residential dwelling and garage. Associated parking, cycle storage, hard and soft landscaping.' Amendments include: Installation of zinc copings to the tops of the roof verge and eaves parapet walls and the tops of the first floor flat roof parapet walls; Replacement of one rooflight; Replacement of the concealed roof gutters and addition of overflows with zinc covers to north and south elevations; Stepped zinc roof flashings to sloping roof abutments with brick parapet walls

  Received 10 Sep, published by the council 14 Sep 2026 Amendments
• 26/3265/NMA Awaiting decision

  Fairacres 164 East End Road London N2 0RR

  Non-material amendments to planning permission reference 24/1113/FUL dated 22/01/25 for 'Demolition of existing units in the central and southern parts of the existing building and construction of new replacement self-contained dwellings to provide 36 residential units (Class C3). Alterations to the existing and retained front part of the building to provide 3 reconfigured self-contained residential units and the retention of 1 existing self-contained residential unit (Class C3), along with other general refurbishment and alterations works, new landscaping, refuse store, car and cycle parking, sub-station and retaining existing accesses on East End Road and Pulham Avenue. Retention of St Anne's House (2 units) and general refurbishment and improvement works.' Amendments include: Redesigned access around the rear garden: Redesigned hard and soft landscaping; Amended refuse store footprint

  Received 8 Sep, published by the council 11 Sep 2026 Amendments
• 26/3216/NMA Awaiting decision

  33 Rosslyn Avenue Barnet EN4 8DH

  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

  Received 2 Sep, published by the council 11 Sep 2026 Amendments