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Planning application

145 Chase Side London N14 5HE

Awaiting decision Barnet 26/3284/HSE Householder

Works: Extension 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 rear extension. New first floor rear window

As published by the council, reference 26/3284/HSE

Application record

Reference
26/3284/HSE
Category
Householder
Status
Pending Consideration
Received
9 Sep 2026
Validated
9 Sep 2026
Postcode
N14 5HE

Site history

Applications at this address on the Barnet register

This site has had 2 applications since 2026.

  • 26/0485/192 Awaiting decision

    145 Chase Side London N14 5HE

    Roof extension involving extension involving rear dormer window and new side gable window

    Submitted 9 Feb 2026 Lawful development

Timeline

Dates from the published record

  1. 9 Sep 2026

    Received by Barnet

  2. 11 Sep 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 4 November 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 43 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

  • 167 Chase Side London N14 5HE

    26/3023/PNH Submitted 17 Aug 2026 0m away

    58% historically approved · decision due ~12 Oct

    Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 3.80 metres and eaves height of 2.90 metres, following demolition of the existing rear extension and conservatory.

    Decided Prior approval Extension Demolition
    Small domestic

  • 173 Chase Side Southgate N14 5HE

    24/1388/HSE Submitted 8 Apr 2024 32m away

    Alterations to existing vehicular hardstanding and widening of existing access

    Refused Householder 7 docs
    Domestic

  • 186 Chase Side London N14 5HN

    26/1760/NAC Submitted 11 May 2026 96m away

    Change of use from HMO-house of multiple occupation (Sui Generis) into 7 selfcontained flats (Class C3), involving four storey front/side extension, with part single, part 3 - storey rear extensions, with lower ground floor, conversion of garage into habitable room, extension to roof at sides to form dormers, with front and rear rooflights

    Granted Outline New dwelling Extension +1 1 doc

  • 186 Chase Side London N14 5HN

    26/0828/NAC Submitted 4 Mar 2026 96m away

    Change of use from house of multiple occupation (Sui Generis) into 7 self-contained flats, involving four storey front/side extension, with part single, part 3- storey rear extensions, conversion of garage into habitable room, extension to roof at side to form gable end, with front and rear rooflights

    Granted Outline New dwelling Extension +1 1 doc

  • 186 Chase Side London N14 5HN

    26/01745/FUL Submitted 30 Apr 2026 97m away

    Change of use from HMO-house of multiple occupation (Sui Generis) into 7 self-contained flats (Class C3), involving four storey front/side extension, with part single, part 3- storey rear extensions, with lower ground floor, conversion of garage into habitable room, extension to roof at sides to form dormers, with front and rear rooflights.

    Granted Full applications New dwelling Extension +1 23 docs

  • 9 Osidge Lane London N14 5JD

    26/0962/HSE Submitted 13 Mar 2026 99m away

    Single storey rear extension. Conversion of the existing garage into habitable room, insertion of window to replace the garage door

    Granted Householder Extension Windows or glazing 7 docs
    Small domestic

In Barnet

  • 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
  • 26/3385/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
  • 26/3386/HSE Awaiting decision

    9 Colin Gardens London NW9 6EL

    Single storey rear extension with 1no. rooflight following demolition of the existing garage

    16 Sep 2026 Householder
  • 26/3363/HSE Awaiting decision

    125 Park Road Barnet EN4 9QN

    Single storey side / rear extension including garage with 1no. roof lantern following the demolition of existing garage and front porch. Roof extension involving hip to gable on both sides with rear dormer window and 3no. front facing rooflights

    15 Sep 2026 Householder