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Planning application

26/0850/HSE

20 Holne Chase London N2 0QN

Granted Barnet Householder Application

Proposal

Conversion of garage to form habitable space, including new traditional timber garage style doors with double glazed lights. Replacement of existing window on side elevation with new double glazed window and door. Addition of EV charging point.

As published by the council, reference 26/0850/HSE

Timeline

Dates from the published record

  1. 6 Mar 2026

    Received by Barnet

  2. 13 Apr 2026

    Decision issued: Approve subject to conditions

  3. 25 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

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.

About householder applications

How this application type works

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

Nearby applications

Within 500 metres

  • TCP/0244/26 Decided

    15 Holne Chase London N2 0QL

    1 x Mature Dead Cherry (applicants ref. T1) - Approximately 6.00m: Fell to ground level. 5 day notice Cypress Group (applicants ref. G1) - Approximately 5.00m: Remove dead branches. 1 x Fallen Cypress (applicants ref. T2) - Approximately 5.00m: Fell to ground level

    29 Apr 2026 95m away Trees
  • 26/1792/NMA Awaiting decision

    35 Holne Chase London N2 0QL

    Non-material amendments to planning permission reference 24/5480/HSE dated 11/02/25 for 'Conversion of the garage to habitable use, restoring the original 4 leaf vertical panelled doors; Enlarge the ground floor front window as a three light design with lower sills. Single storey rear extension under a flat lead roof with new French doors and side windows with lower sills. Insertion of a French door in the centre of the rear bay window with lower sills to the ground floor windows. Retention of the side hipped roof on the South East side with the unstable chimney stack rebuilt with a narrower lead roof side extension to the rear. Restoration of the retained dormer windows with arched lead roofs. Addition of a low skylight in the flat crown roof concealed by the surrounding ridge tiles. Minor adjustments to the fenestration on the North west Elevation with redundant external drainage pipework removed.' Amendments include, Rebuilding the rear bay; Adjustments to the fenestration on the side elevations; Replacement of the tiling with lead cheeks and roofs of the dormer windows; Replacement soil vent pipes, rainwater downpipes, gutters and fittings; Developed garden layout with bin store, shed, enclosed A/C condenser, pergola, external kitchen

    12 May 2026 111m away Amendments
  • TCP/0186/26 Decided

    Carrington Chase 54 Winnington Road London N2 0TY

    2 x Paper Birch (applicants ref. T1, T2) - Reduce crown by 2.5-3m in height and spread. Remove two lateral secondary limbs growing closest to the house. 3 x Hornbeam (applicants ref. T3, T4, T10) - Reduce crown by 2m in height and re-shape spread. 1 x Beech (applicants ref. T5) - Reduce crown by 4m in height and re-shape spread. 1 x Cork Oak (applicants ref. T6) - Reduce crown by 1.5m in height and re-shape spread. Remove two lowest limbs overhanging the neighbours and rear boundary. 1 x Paper Birch (applicants ref. T7) - Reduce crown by 1.5m in height and re-shape spread. 1 x Holm Oak (applicants ref. T8) - Reduce crown by 2.5m in height and re-shape spread. 1 x Liquidambar (applicants ref. T9) - Reduce crown by 4m in height and re-shape spread. 2 x Holm Oak (applicants ref. T12) - Reduce crown by 2m in height and re-shape spread. 1 x Red Oak (applicants ref. T13) - Reduce crown by 2m in height and re-shape spread. 1 x Dawyck Purple Beech (applicants ref. T14) - Reduce crown by 2m in height and re-shape spread. 1 x Bay (applicants ref. T15) - Reduce crown by 2.5m in height and re-shape spread. Reduce top by 1m in height.

    30 Mar 2026 162m away Trees
  • TCP/0162/26 Decided

    50 Norrice Lea London N2 0RL

    1 x Contorted Willow (applicants ref. T1) - Reduce by 3 metres (40%) in height and thin sub lateral branches by 25% to allow improved light filtration. 1 x Horn Beam (applicants ref. T2) - Thin sub lateral branches by 25% to improve light filtration through the canopy. 1 x Oak (applicants ref. T3) - Thin sub lateral branches by 25% to improve light filtration through the canopy. 3 x Sycamore (applicants ref. T4, T5, T6) - Reduce back to most recent reduction points to maintain trees at a manageable size for location. 6 x Limes (applicants ref. T9, T10, T11, T12, T13, T14) - Reduce height by 3m to remove all new epicormic growth.

    18 Mar 2026 175m away Trees
  • 26/1839/HSE Awaiting decision

    20 Rowan Walk London N2 0QJ

    Two single storey rear extensions. Conversion of the garage into habitable room, new garage door with glazed panels, to replace garage door and fanlight. New side window openings. Roof extension involving rear dormer window and side facing conservation rooflights. New replacement driveway paving.

    15 May 2026 175m away Householder
  • TCP/0133/26 Awaiting decision

    42 Linden Lea London N2 0RQ

    1 x Hornbeam - Reduce back to the original cut/pruning points by 2-3 metres. 4 x Oak - Reduce back to the original cut/pruning points by 2-3 metres.

    10 Mar 2026 203m away Trees

In Barnet

  • 26/2837/HSE Awaiting decision

    26 The Drive Barnet EN5 4JQ

    Single storey side and rear extension with 7no. rooflights

    31 Jul 2026 Householder
  • 26/2840/HSE Awaiting decision

    19 Wildwood Road London NW11 6UL

    Replacement of the existing front door, double glazing to existing windows and internal secondary glazing to front elevations; roof covering replacements, soffit and gutter repairs; security cameras, garden shed repairs and repainting, rear boundary hedges to 2.5m with concealed metal fencing

    31 Jul 2026 Householder
  • 26/2813/HSE Awaiting decision

    3 Delamere Gardens London NW7 3EA

    Single storey front extension incorporating a front porch, raising existing side extension floor level to match main house level, new roof with increased height to the side extension and 2no. rooflights, single storey rear extension with 4no. rooflights with new patio area, access steps to garden and hard and soft landscaping. Changes to fenestration: replacement of existing windows

    30 Jul 2026 Householder
  • 26/2812/HSE Awaiting decision

    60 Millway London NW7 3RA

    Two storey side extension linking to house and single storey rear infill extension following demolition of the existing garage. Associated alterations to roof

    30 Jul 2026 Householder
  • 26/2803/HSE Awaiting decision

    15 Poynings Way London N12 7LP

    Part single, part two storey side and rear extension. Conversion and extension of the existing garage, insertion of window to replace garage door. New front porch

    29 Jul 2026 Householder