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Planning application

12 Marlborough Avenue Edgware HA8 8UH

Awaiting decision Barnet 26/3796/S73

Works: Extension Loft or dormer Windows or glazing Small domestic

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

Relates to 26/3039/HSE

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Variation of condition 1 (Approved plans) pursuant to planning permission 26/3039/HSE dated 14/10/2026 for `Part single, part two storey rear extension. First floor side extension. Roof extension involving side and rear wraparound dormer and side gable windows. New front porch with associated steps and railings.` Amendments include changes to the roof form over the side extension

As published by the council, reference 26/3796/S73

Application record

Reference
26/3796/S73
Status
Pending Consideration
Received
20 Oct 2026
Validated
22 Oct 2026
Postcode
HA8 8UH

Site history

Applications at this address on the Barnet register

This site has had 6 applications since 2025: 2 approved, 1 refused.

  • 26/3039/HSE Decided

    12 Marlborough Avenue Edgware HA8 8UH

    Part single, part two storey rear extension. First floor side extension. Roof extension involving side and rear wraparound dormer and side gable windows. New front porch with associated steps and railings

    Submitted 18 Aug 2026 Householder
  • 26/2009/192 Awaiting decision

    12 Marlborough Avenue Edgware HA8 8UH

    Removal and alteration of existing roof above existing two storey side (Phase 1). Roof extension involving wraparound side and rear dormer windows (Phase 2). (Phase 2 to commence when phase 1 completed)

    Submitted 29 May 2026 Lawful development
  • 26/0630/192 Refused

    12 Marlborough Avenue Edgware HA8 8UH

    Roof extension involving side/rear wraparound dormer

    Decided 15 Apr 2026 Lawful development
  • 25/4255/HSE Granted

    12 Marlborough Avenue Edgware HA8 8UH

    Front porch extension including the relocation of the front door and new access steps. First floor side extension and alterations to the existing roof

    Decided 13 Jan 2026 Householder
  • 25/4254/PNH Granted

    12 Marlborough Avenue Edgware HA8 8UH

    Single storey rear extension with a proposed depth of 6.00m, maximum height of 3.00m and eaves height of 2.70m

    Decided 27 Nov 2025 Prior approval

Timeline

Dates from the published record

  1. 20 Oct 2026

    Received by Barnet

  2. 21 Oct 2026

    Added to PlanIndex

  3. 22 Oct 2026

    Validated

    Checked as complete and ready for consideration.

  4. Decision

    Awaiting decision

    Decision expected by 17 December 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Barnet took a median of 46 days over the applications it decided in the last year.

Cases linked to this one on the register

  • 26/3039/HSE Decided

    12 Marlborough Avenue Edgware HA8 8UH

    Part single, part two storey rear extension. First floor side extension. Roof extension involving side and rear wraparound dormer and side gable windows. New front porch with associated steps and railings

    Submitted 18 Aug 2026 Householder

What happens while it is decided

This application is with Barnet for determination, against a statutory target of eight weeks. Over the last year Barnet's median decision took 46 days. More in our guide to how long planning decisions take.

About this record

The published feed does not state which type of application this is; the register entry on Barnet's portal will say. Our guide explains the common types.

Nearby applications

Within 0.3 miles

  • 12 Marlborough Avenue Edgware HA8 8UH

    26/3039/HSE Submitted 18 Aug 2026 50 yards away

    77% historically approved · decision due ~14 Oct

    Part single, part two storey rear extension. First floor side extension. Roof extension involving side and rear wraparound dormer and side gable windows. New front porch with associated steps and railings

    Decided Householder Extension Loft or dormer +1
    Small domestic

  • 12 Marlborough Avenue Edgware HA8 8UH

    25/4254/PNH Submitted 24 Oct 2025 50 yards away

    Single storey rear extension with a proposed depth of 6.00m, maximum height of 3.00m and eaves height of 2.70m

    Granted Prior approval Extension 6 docs
    Small domestic

  • 12 Marlborough Avenue Edgware HA8 8UH

    26/0630/192 Submitted 18 Feb 2026 50 yards away

    Roof extension involving side/rear wraparound dormer

    Refused Lawful development Extension Loft or dormer 6 docs

  • 12 Marlborough Avenue Edgware HA8 8UH

    25/4255/HSE Submitted 24 Oct 2025 50 yards away

    Front porch extension including the relocation of the front door and new access steps. First floor side extension and alterations to the existing roof

    Granted Householder Extension 6 docs
    Small domestic

  • 12 Marlborough Avenue Edgware HA8 8UH

    26/2009/192 Submitted 29 May 2026 50 yards away

    80% historically approved · decision due ~24 Jul

    Removal and alteration of existing roof above existing two storey side (Phase 1). Roof extension involving wraparound side and rear dormer windows (Phase 2). (Phase 2 to commence when phase 1 completed)

    Awaiting decision Lawful development Extension Loft or dormer +1 5 docs

  • 47 Warwick Avenue Edgware HA8 8UN

    25/4472/HSE Submitted 10 Nov 2025 50 yards away

    77% historically approved · decision due ~13 Jan

    Part single part two storey side and rear extensions following demolition of the existing garage. Roof extension involving hip to gable, rear dormer window and 3no. front facing rooflights. New front porch

    Awaiting decision Householder Extension Loft or dormer +2 8 docs
    Small domestic