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Planning application

59 Lyonsdown Avenue Barnet EN5 1DX

Awaiting decision Barnet 26/2575/HSE Householder

Works: Extension Loft or dormer Windows or glazing Small domestic

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

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

Proposal

Single storey side extension to provide bike store. Addition of a canopy above side door. New timber gates to side. Roof extension involving 1no. new dormer window to rear elevation. Insertion of 2no. circular windows to rear elevation. Alterations to front garden including changes to existing driveway and widening of vehicular access, and new steps. New raised patio to rear with associated steps to garden. New brick garden wall to rear. Replacement of existing windows with triple glazed timber windows

As published by the council, reference 26/2575/HSE

Application record

Reference
26/2575/HSE
Category
Householder
Status
Pending Consideration
Received
8 Jul 2026
Validated
13 Jul 2026
Postcode
EN5 1DX

Timeline

Dates from the published record

  1. 8 Jul 2026

    Received by Barnet

  2. 13 Jul 2026

    Validated

    Checked as complete and ready for consideration.

  3. 25 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 7 September 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 44 days over the applications it decided in the last year.

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 decided householder applications in a median of 56 days. More in our guide to how long planning decisions take.

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 500 metres

  • 41 Lyonsdown Avenue Barnet EN5 1DX

    26/1423/HSE Submitted 17 Apr 2026 44m away

    Single storey rear extension with new lowered patio area and associated access steps. New hard and soft landscaping. Conversion of the existing garage into habitable room, insertion of window to replace garage door

    Refused Householder Extension Windows or glazing 16 docs
    Small domestic

  • 41 Lyonsdown Avenue Barnet EN5 1DX

    25/5008/HSE Submitted 15 Dec 2025 44m away

    77% historically approved · decision due ~9 Feb

    Single storey rear extension with new raised patio area and associated access steps

    Awaiting decision Householder Extension 13 docs
    Small domestic

  • 42 Lyonsdown Avenue Barnet EN5 1DX

    26/0305/HSE Submitted 27 Jan 2026 66m away

    77% historically approved · decision due ~26 Mar

    Part single, part two storey side and rear extension with new patio area with pergola following demolition of the existing single storey structures

    Awaiting decision Householder Extension Demolition 18 docs
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  • 79 Monks Avenue Barnet EN5 1DA

    25/5201/HSE Submitted 30 Dec 2025 104m away

    77% historically approved · decision due ~4 Mar

    First floor side/rear extension. Roof extension involving rear dormer window

    Awaiting decision Householder Extension Loft or dormer +1 6 docs
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  • 6 Willenhall Avenue Barnet EN5 1JN

    26/0137/HSE Submitted 14 Jan 2026 150m away

    77% historically approved · decision due ~11 Mar

    Single storey side extension with 2no. rooflights following demolition of the existing garage and external store

    Awaiting decision Householder Extension Loft or dormer +1 8 docs
    Small domestic

  • Woodstock 5 Willenhall Avenue Barnet EN5 1JN

    25/5140/HSE Submitted 22 Dec 2025 188m away

    77% historically approved · decision due ~16 Feb

    Roof extension involving increase of eaves and ridge levels including new rotunda roof above entrance bay window and 2no. rear dormer windows

    Awaiting decision Householder Extension Loft or dormer +1 13 docs
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In Barnet

  • 26/3422/HSE Awaiting decision

    Revelstroke 28 Totteridge Village London N20 8JN

    Construction of a swimming pool and associated hard and soft landscaping following demolition of the existing shed including new access steps. Alterations to the ground level. Replacement of an existing timber decking terrace with a paved terrace.

    18 Sep 2026 Householder
  • 26/3396/HSE Awaiting decision

    43 Dukes Avenue London N3 2DE

    Single storey rear, part two storey side extension with 1no. rooflight following the demolition of existing shed. Roof extension with rear dormer window, 1no. front, 3no. side facing rooflights and roof windows to the front and side roof slopes. Installation of solar panels to side elevation of roof

    17 Sep 2026 Householder
  • 26/3410/HSE Awaiting decision

    54 Ferney Road Barnet EN4 8LE

    Single storey rear extension with alteration to the raised terrace area including new access steps to garden

    17 Sep 2026 Householder
  • 26/3382/HSE Awaiting decision

    11 Layfield Crescent London NW4 3UJ

    Part single, part two storey rear extension with flat roof and 1no. skylight

    16 Sep 2026 Householder
  • 26/3385/HSE Awaiting decision

    Three Gables Bungalow Boyne Avenue London NW4 2JL

    Excavation of basement level with associated front and western lightwells. Single storey rear extensions with new patio area. Alterations to ground levels. Formation of first floor with new pitched gable roof with 2no. front and 2no. rear dormers and 2no. front facing, 2no side rooflights with associated hard and soft landscaping

    16 Sep 2026 Householder