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Planning application

26/0989/HSE

21 Southbourne Crescent London NW4 2LB

Awaiting decision Barnet Householder Application

Proposal

Two storey side and part single, part two storey rear extension following demolition of existing garage. Alterations and extensions to roof including enlargement of rear dormer window and insertion of 2no. rooflights to front roofslope. New rear patio and steps to garden. New front porch

As published by the council, reference 26/0989/HSE

Timeline

Dates from the published record

  1. 16 Mar 2026

    Received by Barnet

  2. 17 Mar 2026

    Validated

    Checked as complete and ready for consideration.

  3. 25 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

What happens while it is decided

The process from here

This application is with Barnet for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

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

  • 26/2613/HSE Awaiting decision

    21 Southbourne Crescent London NW4 2LB

    Two storey side and part single, part two storey rear extension following demolition of existing garage. New rear patio and steps to garden. Alterations to the rear dormer window and front rooflights. New front porch

    13 Jul 2026 43m away Householder
  • 26/1213/HSE Awaiting decision

    Geraldene Greenbank Crescent London NW4 2LA

    Conversion of the garage into a habitable room with front extension and insertion of window to replace garage door. Alteration to porch roof. First floor side extension with alteration to roof over existing side extension. Removal of chimney stacks (AMENDED DESCRIPTION)

    30 Mar 2026 118m away Householder
  • 26/1639/HSE Awaiting decision

    49 Southbourne Crescent London NW4 2JX

    Lower ground floor storage area, part single, part two-storey, front side and rear extension with associated patio steps following the demolition of the existing garage. Roof extension involving side dormer window, 2no. front and 1no. rear facing rooflight and new side gable window

    30 Apr 2026 135m away Householder
  • 26/0919/192 Decided

    10 Boyne Avenue London NW4 2JN

    Roof extension involving hip to gable, rear dormer window, 2no. front facing rooflights and new side gable window

    11 Mar 2026 211m away Lawful development
  • 26/2816/PNH Awaiting decision

    18 Boyne Avenue London NW4 2JN

    2no. Single storey rear extensions with a maximum depth of 6.00m, maximum height of 3.90m and an eaves height 3.00m

    30 Jul 2026 245m away Prior approval
  • 26/2815/192 Awaiting decision

    18 Boyne Avenue London NW4 2JN

    Roof extension involving rear dormer window and 2no. front facing rooflights

    30 Jul 2026 245m away Lawful development

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