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Planning application

3 Grenville Close London N3 1UF

Awaiting decision Barnet 26/0029/HSE Householder Application

Works: Extension 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

First floor side extension

As published by the council, reference 26/0029/HSE

Application record

Reference
26/0029/HSE
Type
Householder Application
Status
Pending Consideration
Received
30 Dec 2025
Validated
7 Jan 2026
Ward
Finchley Church End
Postcode
N3 1UF

Site history

Applications at this address on the Barnet register

This site has had 2 applications since 2025: 1 approved, 0 refused.

  • 26/1436/NMA Granted

    3 Grenville Close London N3 1UF

    Non-material amendments to planning permission reference 26/0029/HSE dated 28/03/26 for 'Single Storey rear infill extension, first floor side extension.' Amendments include changes to fenestration to front and rear elevations

    Decided 6 May 2026 Amendments

Timeline

Dates from the published record

  1. 30 Dec 2025

    Received by Barnet

  2. 7 Jan 2026

    Validated

    Checked as complete and ready for consideration.

  3. 10 Aug 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 4 March 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

1 later application on the register refers to this one:

  • 26/1436/NMA Granted

    3 Grenville Close London N3 1UF

    Non-material amendments to planning permission reference 26/0029/HSE dated 28/03/26 for 'Single Storey rear infill extension, first floor side extension.' Amendments include changes to fenestration to front and rear elevations

    Decided 6 May 2026 Amendments

Who's behind it

Company information only, from the register and Companies House

Tekton DPW Limited Agent, registered in Twickenham

Active · incorporated 1999 · Twickenham

12 applications on PlanIndex · across 3 councils · 70% granted

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

Documents

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

3 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.

Watch members (£5 a month) open the document list from here.

Open the documents

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 0.3 miles

  • 3 Grenville Close London N3 1UF

    26/1436/NMA Submitted 17 Apr 2026 50 yards away

    Non-material amendments to planning permission reference 26/0029/HSE dated 28/03/26 for 'Single Storey rear infill extension, first floor side extension.' Amendments include changes to fenestration to front and rear elevations

    Granted Amendments Extension Windows or glazing 4 docs
    Small domestic

  • 6 Kingswood Park London N3 1UG

    26/3279/HSE Submitted 8 Sep 2026 100 yards away

    77% historically approved · decision due ~4 Nov

    Single storey front infill extensions and relocation of existing front door including new access steps, alteration to existing garage door. 2no. single storey rear extensions with pitched roof following demolition of the existing conservatory. New side lightwell to basement level. Roof alterations, including raising of front gable pitch, formation of crown roof, 1no. front and 2no. rear dormer windows and new front window and 3 no. crown roof rooflights. Alterations to fenestration

    Decided Householder Extension Loft or dormer +3
    Small domestic

  • 19 Hendon Avenue London N3 1UJ

    TPP/0179/26 Submitted 25 Mar 2026 100 yards away

    1 X Copper Beech - fell, grind stump to a minimum depth of 300mm below ground level and replace with a copper beech (Fagus sylvatica 'Purpurea') in same location, due to significant structural decay and high risk of failure. Standing in T44 of Order (amended description)

    Granted Trees 9 docs

  • 19 Hendon Avenue London N3 1UJ

    26/1060/192 Submitted 19 Mar 2026 100 yards away

    Extension of existing swimming pool and new pool house following demolition of existing pool house

    Refused Lawful development Extension Demolition 17 docs

  • 19 Hendon Avenue London N3 1UJ

    25/3928/192 Submitted 25 Sep 2025 100 yards away

    80% historically approved · decision due ~21 Nov

    Single storey side extensions to both sides. Single storey rear extension. Roof extension with rear dormer windows, 14no. front and 2no. side facing rooflights following the demolition of chimneys

    Awaiting decision Lawful development Extension Loft or dormer +2 23 docs
    Small domestic

  • 19 Hendon Avenue London N3 1UJ

    26/2094/192 Submitted 5 Jun 2026 100 yards away

    Demolition of existing pool house and erection of a new extended pool house with same pool size.

    Refused Lawful development Demolition 19 docs

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