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Planning application

Chesterfield Windmill Lane Barnet EN5 3HX

Refused Barnet 25/4816/HSE Householder Application

Works: Extension Loft or dormer Demolition Windows or glazing Small domestic

Read from the description, not a valuation. How we read the register

Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.

Proposal

Single storey side extension with balcony above. Enclosure of existing ground floor side veranda and first floor side balcony. Single storey rear extension with green roof and associated glass balustrade. Enclosure of first floor front balcony. Side and rear extensions to existing garage including addition of a pitched roof with 4no. rooflights and front and rear gable windows to provide a workshop at first floor level, following demolition of shed

As published by the council, reference 25/4816/HSE

Application record

Reference
25/4816/HSE
Type
Householder Application
Status
Refused
Decision
Refused As published: Refuse
Received
2 Dec 2025
Validated
5 Dec 2025
Decided
29 Jan 2026
Ward
High Barnet
Decision by
Delegated Decision
Postcode
EN5 3HX

Site history

Applications at this address on the Barnet register

This site has had 7 applications since 2025: 2 approved, 1 refused.

  • 26/3604/CON Awaiting decision

    Chesterfield Windmill Lane Barnet EN5 3HX

    Submission of details of condition 9 (Written Scheme of Investigation (WSI)) pursuant to planning permission 26/0051/HSE dated 12/03/2026

    Submitted 6 Oct 2026
  • 26/2293/CON Decided

    Chesterfield Windmill Lane Barnet EN5 3HX

    Submission of details of condition 8 (Levels) pursuant to planning permission 26/0051/HSE dated 12/03/2026

    Submitted 18 Jun 2026
  • 26/1577/CON Granted

    Chesterfield Windmill Lane Barnet EN5 3HX

    Submission of details of Part Discharge of Condition 9 (Stage 1 - Written Scheme of Investigation (WSI)) pursuant to planning permission 26/0051/HSE dated 12/03/2026

    Decided 1 Jun 2026 Conditions
  • 26/1274/CON Granted

    Chesterfield Windmill Lane Barnet EN5 3HX

    Submission of details of condition 5 (Tree Protection) 6 (Hard and Soft Landscaping) pursuant to planning permission 26/0051/HSE dated 12/03/2026

    Decided 11 May 2026 Conditions
  • 26/0051/HSE Awaiting decision

    Chesterfield Windmill Lane Barnet EN5 3HX

    Single storey side extension with balcony above. Enclosure of existing ground floor side veranda and first floor side balcony. Single storey rear extension with green roof and associated glass balustrade. Enclosure of first floor front balcony. Side and rear extensions to existing garage including addition of a pitched roof with 4no. rooflights and front and rear gable windows to provide attic roofspace, following demolition of shed

    Submitted 7 Jan 2026 Householder
  • 25/4889/192 Awaiting decision

    Chesterfield Windmill Lane Barnet EN5 3HX

    Roof extension involving rear dormer window and 5no. front facing rooflights

    Submitted 5 Dec 2025 Lawful development

Timeline

Dates from the published record

  1. 2 Dec 2025

    Received by Barnet

  2. 5 Dec 2025

    Validated

    Checked as complete and ready for consideration.

  3. 29 Jan 2026

    Decision issued: Refuse

  4. 10 Aug 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Buildplans Agent, registered in Chippenham

Active · incorporated 2011 · Chippenham

106 applications on PlanIndex · across 25 councils · 83% granted

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Documents

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

11 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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What this refusal means

Barnet refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

About householder applications

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • Chesterfield Windmill Lane Barnet EN5 3HX

    26/0051/HSE Submitted 7 Jan 2026 50 yards away

    77% historically approved · decision due ~4 Mar

    Single storey side extension with balcony above. Enclosure of existing ground floor side veranda and first floor side balcony. Single storey rear extension with green roof and associated glass balustrade. Enclosure of first floor front balcony. Side and rear extensions to existing garage including addition of a pitched roof with 4no. rooflights and front and rear gable windows to provide attic roofspace, following demolition of shed

    Awaiting decision Householder Extension Loft or dormer +2 11 docs
    Small domestic

  • Chesterfield Windmill Lane Barnet EN5 3HX

    25/4889/192 Submitted 5 Dec 2025 50 yards away

    80% historically approved · decision due ~30 Jan

    Roof extension involving rear dormer window and 5no. front facing rooflights

    Awaiting decision Lawful development Extension Loft or dormer +1 6 docs

  • Chesterfield Windmill Lane Barnet EN5 3HX

    26/1274/CON Submitted 2 Apr 2026 50 yards away

    Submission of details of condition 5 (Tree Protection) 6 (Hard and Soft Landscaping) pursuant to planning permission 26/0051/HSE dated 12/03/2026

    Granted Conditions Trees 5 docs

  • Chesterfield Windmill Lane Barnet EN5 3HX

    26/1577/CON Submitted 27 Apr 2026 50 yards away

    Submission of details of Part Discharge of Condition 9 (Stage 1 - Written Scheme of Investigation (WSI)) pursuant to planning permission 26/0051/HSE dated 12/03/2026

    Granted Conditions 5 docs

  • Mill Lodge Windmill Lane Barnet EN5 3HX

    26/2108/HSE Submitted 5 Jun 2026 50 yards away

    77% historically approved · decision due ~6 Aug

    Additional partial storey at first floor level (Amended Proposal)

    Decided Householder 14 docs
    Domestic

  • Chesterfield Windmill Lane Barnet EN5 3HX

    26/3604/CON Submitted 6 Oct 2026 50 yards away

    78% historically approved · decision due ~1 Dec

    Submission of details of condition 9 (Written Scheme of Investigation (WSI)) pursuant to planning permission 26/0051/HSE dated 12/03/2026

    Awaiting decision

In Barnet

  • 26/3853/HSE Awaiting decision

    30 Goldsmith Avenue London NW9 7HB

    Single storey rear extension following demolition of the existing extension

    23 Oct 2026 Householder
  • 26/3856/HSE Awaiting decision

    229 Hale Drive London NW7 3EH

    Single storey rear extension

    23 Oct 2026 Householder
  • 26/3863/HSE Awaiting decision

    12 Vale Drive Barnet EN5 2ED

    Single storey side and rear extension

    Received 23 Oct, published by the council 24 Oct 2026 Householder
  • 26/3858/HSE Awaiting decision

    131 Rushgrove Avenue London NW9 6RG

    Single storey rear extension. New front porch

    Received 23 Oct, published by the council 24 Oct 2026 Householder
  • 26/3827/HSE Awaiting decision

    43 Hermitage Lane London NW2 2HE

    Single storey rear extension with 3no. rooflights following demolition of the existing conservatory. Replacement front bay window and entrance porch. First floor rear juliette balcony. Changes to fenestration including new window openings and enlarged front rooflight

    22 Oct 2026 Householder