17 Prothero Gardens London NW4 3SJ

1. 12 Aug 2025

   Received by Barnet

2. 10 Sep 2025

   Decision issued: Approve subject to conditions

3. 10 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

• 72 Wykeham Road London NW4 2ST

  26/0346/HSE Submitted 29 Jan 2026 112m away

  77% historically approved · decision due ~27 Mar

  Single storey front extension including alterations to the existing fenestration and creation of additional planting. Part single, part two storey rear extension with new patio area with associated access steps following the demolition of the existing ground floor extension. Installation of 2no. air conditioning units with acoustic enclosures on the flank elevation

  Awaiting decision Householder Extension Demolition +1 6 docs
  Small domestic

• 37 Wykeham Road London NW4 2SS

  26/2791/192 Submitted 29 Jul 2026 156m away

  79% historically approved · decision due ~23 Sep

  Roof extension involving box dormer infill to second floor balcony area. Roof extension to adjoin roof of existing two storey rear extension. 1no. side facing window to both elevations of box dormer. (amended description)

  Awaiting decision Extension Loft or dormer +1

• Outside 21 To 36 Quadrant Close London NW4 3BY

  26/0253/LIC Submitted 21 Jan 2026 195m away

  79% historically approved · decision due ~18 Mar

  Removal of redundant telecommunications equipment and the reconfiguration and relocation of existing EE and H3G apparatus, together with the installation of a limited amount of new ancillary equipment, to upgrade the existing rooftop site. Works include the reuse of existing support poles, brackets, steelwork and foundations where possible, the relocation and refixing of antennas, dishes and associated radio equipment onto proposed support frames and tripod poles, and the replacement of existing bracing and fixings where required

  Awaiting decision

• 30 Wykeham Road London NW4 2SU

  25/5017/192 Submitted 15 Dec 2025 212m away

  Conversion of the existing garage into habitable room, insertion of window to replace the existing garage door and changes to fenestration

  Decided Lawful development Windows or glazing 5 docs

• 46 Watford Way London NW4 3AL

  25/3912/CON Submitted 23 Sep 2025 213m away

  95% historically approved · decision due ~19 Nov

  Submission of details of condition 9 (LUL Design and method statement) 23 (Thames Water - Water) 24 (Thames Water - Piling) pursuant to planning permission 24/2794/S73 dated 15/10/2024

  Awaiting decision Conditions 12 docs

• 15 Raleigh Close London NW4 2SX

  26/2777/HSE Submitted 28 Jul 2026 214m away

  77% historically approved · decision due ~22 Sep

  Demolition of the two storey rear bay window and infill side extension. Single storey front extension and new infill side extension. Increased height of existing boundary wall. Part single, part two storey rear extension. Alterations and extension to roof including 1no. side dormer window and insertion of 2no. rooflights to crown roof; New rear raised patio to provide level access with associated steps and access ramp to garden; Replacement of windows; Alterations to hard and soft landscaping to front garden/driveway.(Amended Description and Plans)

  Awaiting decision Householder Extension Loft or dormer +2
  Small domestic

• 26/3249/HSE Awaiting decision

  19 Rushdene Avenue Barnet EN4 8EN

  New front vehicular access and hardstanding to provide off-street parking space. New retaining wall following demolition of the existing wall and raised planted beds

  7 Sep 2026 Householder
• 26/3235/HSE Awaiting decision

  26 Mount Pleasant Barnet EN4 9HH

  Replace existing flat roof at ground floor rear elevation with pitched roof and 2no. rooflights

  4 Sep 2026 Householder
• 26/3222/HSE Awaiting decision

  46 Michleham Down London N12 7JN

  Single storey side/rear extension with 3no. rooflights following demolition of the existing storage/utility structure. Changes to fenestration

  3 Sep 2026 Householder
• 26/3219/HSE Awaiting decision

  53 Tudor Road Barnet EN5 5NW

  First floor rear extension with front and rear rooflights. Roof extension over existing garage

  2 Sep 2026 Householder
• 26/3210/HSE Awaiting decision

  47 Pattison Road London NW2 2HL

  New front vehicular access to provide off-street parking. Removal of existing gate and shed, alterations to the existing front boundary wall and installation of close board fencing panels.

  2 Sep 2026 Householder