Planning application
26/0856/HSE
48 Highfield Avenue London NW11 9UD
Proposal
Single storey rear infill extension with access steps to garden level. First floor rear extension
As published by the council, reference 26/0856/HSE
Timeline
Dates from the published record
-
6 Mar 2026
Received by Barnet
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16 Mar 2026
Validated
Checked as complete and ready for consideration.
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11 May 2026
Decision issued: Approve subject to conditions
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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.
Nearby applications
Within 500 metres
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26/1713/FUL Awaiting decision
First Floor Flat 11 St Marys Road London NW11 9UE
Roof extension involving rear dormer window 1no. rear and 3no. front facing rooflights
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26/2476/FUL Awaiting decision
First Floor Flat 11 St Marys Road London NW11 9UE
Roof extension involving rear dormer and 1no. rear and 3no. front facing rooflights
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26/1632/HSE Awaiting decision
17 Western Avenue London NW11 9HE
Part single, part two storey side and rear extensions. Roof extension with side/rear wraparound dormers with 4no. front facing rooflights and new side gable window
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26/1425/PNH Awaiting decision
24 Western Avenue London NW11 9HJ
Single storey rear extension with a proposed depth of 5.00m, maximum height of 3.00m and an eaves height of 3.00m following the demolition of the existing outrigger
-
26/1288/HSE Awaiting decision
24 Heathfield Gardens London NW11 9HX
Part single, part two storey rear extension. Single storey front porch extension
-
26/2545/PNH Awaiting decision
47 Elmcroft Crescent London NW11 9TA
Single storey rear extension with a proposed depth of 4.2 metres, maximum height of 2.9 metres and eaves height of 2.9 metres, following demolition of existing single story rear extension.
Other householder applications
In Barnet
-
26/2837/HSE Awaiting decision
26 The Drive Barnet EN5 4JQ
Single storey side and rear extension with 7no. rooflights
-
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
-
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
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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
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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