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Planning application

3 Hillside Grove London NW7 2LS

Granted Barnet 25/4418/RCU Retention/Continued Use

Works: Extension Windows or glazing

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Part proposed and part retrospective application for: Part single, part two storey side and rear extension, conversion of the garage into habitable room, insertion of window to replace the garage door (retrospective). Proposed render to the front and rear elevation (proposed)

As published by the council, reference 25/4418/RCU

Application record

Reference
25/4418/RCU
Type
Retention/Continued Use
Status
Approved subject to conditions
Decision
Granted As published: Approve subject to conditions
Received
5 Nov 2025
Validated
7 Nov 2025
Decided
16 Dec 2025
Ward
Mill Hill
Decision by
Delegated Decision
Postcode
NW7 2LS

Site history

Applications at this address on the Barnet register

This site has had 2 applications since 2025: 1 approved, 0 refused.

  • 25/3935/S73 Awaiting decision

    3 Hillside Grove London NW7 2LS

    Variation of condition 1 (Approved Plans) and 3 (Materials) pursuant to planning permission 24/3700/HSE dated 18/11/24 for `Part single, part two storey side and rear extension with 2no. rooflights. Conversion of the garage into habitable room, insertion of window to replace the garage door.` Variation to external finishing materials of front, rear and roof'

    Submitted 26 Sep 2025 Conditions

Timeline

Dates from the published record

  1. 5 Nov 2025

    Received by Barnet

  2. 7 Nov 2025

    Validated

    Checked as complete and ready for consideration.

  3. 16 Dec 2025

    Decision issued: Approve subject to conditions

  4. 10 Aug 2026

    Added to PlanIndex

Documents

Plans, drawings, consultee responses and the officer's report

15 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

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Open the documents

What this grant of permission means

Barnet granted permission on 16 December 2025, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

About amendment applications

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.

Nearby applications

Within 0.3 miles

  • 3 Hillside Grove London NW7 2LS

    25/3935/S73 Submitted 26 Sep 2025 50 yards away

    93% historically approved · decision due ~24 Nov

    Variation of condition 1 (Approved Plans) and 3 (Materials) pursuant to planning permission 24/3700/HSE dated 18/11/24 for `Part single, part two storey side and rear extension with 2no. rooflights. Conversion of the garage into habitable room, insertion of window to replace the garage door.` Variation to external finishing materials of front, rear and roof'

    Awaiting decision Conditions Extension Loft or dormer +1 5 docs
  • 12 Hillside Grove London NW7 2LR

    21/5651/192 Submitted 25 Oct 2021 50 yards away

    Roof extension involving hip to gable, rear dormer window and 3no front facing rooflights and new side gable window. Conversion of existing garage into habitable space, replacement of existing garage door with window

    Granted Lawful development Extension Loft or dormer +1 8 docs
  • 28 Copthall Drive London NW7 2NB

    23/2770/RCU Submitted 26 Jun 2023 100 yards away

    Use of rear garden annexe for use as art club (Retrospective Application)

    Refused Amendments 150 docs
  • 22 Bunns Lane London NW7 2NE

    25/4285/HSE Submitted 27 Oct 2025 100 yards away

    77% historically approved · decision due ~22 Dec

    Part single, part two storey side extension incorporating extension to existing garage. 2 No. front dormer windows

    Awaiting decision Householder Extension Loft or dormer +1 9 docs
    Domestic
  • 13 Copthall Drive London NW7 2ND

    26/0155/HSE Submitted 15 Jan 2026 100 yards away

    77% historically approved · decision due ~12 Mar

    Part single, part two storey side and rear extension. Crown roof extension including side and rear dormer and 2no. front and side facing rooflights

    Awaiting decision Householder Extension Loft or dormer 10 docs
    Domestic
  • 3 Glenmere Avenue London NW7 2LT

    21/5338/RCU Submitted 8 Oct 2021 100 yards away

    Roof extension involving raising of the ridge height rear dormer window with juliette balcony and 3no front facing rooflights (Retrospective Application)

    Refused Amendments Extension Loft or dormer +2 18 docs

In Barnet

  • 26/3776/NMA Awaiting decision

    2 Beechworth Close London NW3 7UT

    Non-material amendments to planning permission reference 24/4827/HSE dated 21/01/25 for 'New front boundary walls and access gates. New fencing with associated landscaping.' Amendments include changes to front boundary wall and fences and landscaping

    Received 19 Oct, published by the council 21 Oct 2026 Amendments
  • 26/3775/NMA Awaiting decision

    2 Beechworth Close London NW3 7UT

    Non-material amendments to planning permission reference 24/0743/HSE dated 20/05/24 for 'Part single, part two-storey side and rear extension. Single storey front infill extension. Second floor roof extension to incorporate terrace area. Alterations to the external facade and fenestration arrangement.' Changes to external finishes / materials; Addition of glass balustrade to east and south elevations of roof terrace; Removal of chimney to north elevation; Changes to fenestration; Changes to hard landscaping: Changes to internal layouts; Amendment to Design and Access Statement

    Received 19 Oct, published by the council 21 Oct 2026 Amendments
  • 26/3778/NMA Awaiting decision

    Unit 1 Great North Leisure Park Chaplin Square London N12 0GL

    Non-material amendments to planning permission reference C11441AK dated 02/06/98 for 'Variation to condition 13 (Opening Hours) of planning permission ref: C11441A to enable the restaurants to be open until midnight on Mondays to Saturdays and until 11.30pm on Sundays, and to enable restaurant C to open from 7am on Mondays to Saturdays.' Amendments include changing opening hours to allow Unit 1 to open from 7:30am Monday to Sunday

    Received 19 Oct, published by the council 21 Oct 2026 Amendments
  • 26/3748/NMA Awaiting decision

    80 Margaret Road Barnet EN4 9RB

    Non-material amendments to planning permission reference B/02962/13 dated 18/09/13 for 'Single storey front/side extension and single storey rear extension including new rear patio and part of its enclosure with 1.1m high timber fence and post.' Amendments include revisions to the side extension and renewal of roof coverings

    Received 16 Oct, published by the council 21 Oct 2026 Amendments
  • 26/3741/NMA Awaiting decision

    8 North Square London NW11 7AA

    Non material amendment to planning permission 26/1111/HSE dated 17/09/2026 for 'Conversion of existing garage and utility room into habitable room, including raising height of roof and insertion of 1no. rooflight and replacement of existing windows on west (side) garage elevation with 1no. door and 1no. window. Insertion of 1no. rooflight to flat section of the main roof. Removal of modern external waste pipes. (Revised Design)'. Amendments includes changes to the wording of condition 3 to enable the required detail/materials to be approved before works starts on each relevant part of the development

    Received 15 Oct, published by the council 16 Oct 2026 Amendments