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Planning application

180 Cat Hill Barnet EN4 8HU

Refused Barnet 25/3390/PNH Prior Notification (Householder)

Works: Extension 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 rear extension with a depth of 4.50 metres, maximum height of 3.40 metres and eaves height of 3.20 metres. Adjoining onto the existing extension.

As published by the council, reference 25/3390/PNH

Application record

Reference
25/3390/PNH
Type
Prior Notification (Householder)
Status
Prior Approval Required and Refused
Decision
Prior Approval Required and Refused
Received
13 Aug 2025
Validated
13 Aug 2025
Decided
9 Sep 2025
Ward
East Barnet
Decision by
Delegated Decision
Postcode
EN4 8HU

Site history

Applications at this address on the Barnet register

This site has had 4 applications since 2021: 3 approved, 1 refused.

  • 25/4134/PNH Granted

    180 Cat Hill Barnet EN4 8HU

    Single storey rear extension with a proposed depth of 4.45 metres, maximum height of 3.0 metres and eaves height of 2.8 metres.

    Decided 21 Nov 2025 Prior approval
  • 25/4135/HSE Granted

    180 Cat Hill Barnet EN4 8HU

    Single storey side/rear extension (amended)

    Decided 23 Dec 2025 Householder
  • TPP/0780/21 Granted

    180 Cat Hill Barnet EN4 8HU

    1 x Chestnut (applicant's ref. T1) - Lift to 3.8 meters. Thin by 25%. Standing in T1 of Tree Preservation Order.

    Decided 23 Nov 2021 Trees

Timeline

Dates from the published record

  1. 13 Aug 2025

    Received by Barnet

  2. 9 Sep 2025

    Decision issued: Prior Approval Required and Refused

  3. 10 Aug 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Agent on file, an architecture practice

41 applications on PlanIndex · across 7 councils · 63% granted

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Documents

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

6 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 prior approval applications

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 180 Cat Hill Barnet EN4 8HU

    25/4135/HSE Submitted 14 Oct 2025 0m away

    Single storey side/rear extension (amended)

    Granted Householder Extension 6 docs
    Small domestic

  • 180 Cat Hill Barnet EN4 8HU

    TPP/0780/21 Submitted 28 Sep 2021 0m away

    1 x Chestnut (applicant's ref. T1) - Lift to 3.8 meters. Thin by 25%. Standing in T1 of Tree Preservation Order.

    Granted Trees 3 docs

  • 180 Cat Hill Barnet EN4 8HU

    25/4134/PNH Submitted 14 Oct 2025 6m away

    Single storey rear extension with a proposed depth of 4.45 metres, maximum height of 3.0 metres and eaves height of 2.8 metres.

    Granted Prior approval Extension 6 docs
    Small domestic

  • 74 Mansfield Avenue Barnet EN4 8QF

    25/4120/HSE Submitted 14 Oct 2025 85m away

    77% historically approved · decision due ~10 Dec

    First floor rear extension with juliette balcony and addition of two new windows openings. Conversion of the existing garage into habitable room, insertion of window to replace the garage door

    Awaiting decision Householder Extension Windows or glazing 10 docs
    Domestic

  • 74 Mansfield Avenue Barnet EN4 8QF

    26/0016/HSE Submitted 5 Jan 2026 88m away

    77% historically approved · decision due ~4 Mar

    First floor rear extension with juliette balcony and addition of two new windows openings. Reduction of ridge height of main roof of house to its original level

    Awaiting decision Householder Extension Roofing +1 9 docs
    Domestic

  • 34 Cornell Gardens Enfield EN4 8FS

    23/03231/HOU Submitted 4 Oct 2023 135m away

    Single storey rear extension (retrospective).

    Granted Householder Extension 11 docs
    Small domestic

In Barnet

  • 26/3224/PNH Awaiting decision

    Low Ridge Rowley Lane Barnet EN5 3HS

    Single storey rear extension with a proposed depth of 8.00 metres, maximum height of 3.00 metres and eaves height of 3.00 metres.

    3 Sep 2026 Prior approval
  • 26/3218/PNH Awaiting decision

    22 Highcroft Gardens London NW11 0LX

    2no. Single storey rear extensions with a proposed depth of 6.00 metres, maximum height of 3.00 metres and eaves height of 3.00 metres, and depth of 3.05 metres, maximum height of 3.00 metres and eaves height of 3.00 metres respectively, following demolition of existing roofed patio.

    2 Sep 2026 Prior approval
  • 26/3212/PNH Awaiting decision

    10 Richmond Road Barnet EN5 1SB

    Single storey rear extension with a proposed depth of 5.54 metres, maximum height of 3.50 metres and eaves height of 3.00 metres.

    2 Sep 2026 Prior approval
  • 26/3183/PNH Awaiting decision

    34 Selvage Lane London NW7 3SP

    Single storey rear extension with a proposed depth of 3.80 metres, maximum height of 3.00 metres and eaves height of 2.75 metres, following partial demolition of existing side manifestation.

    1 Sep 2026 Prior approval
  • 26/3194/PNH Awaiting decision

    74 Windsor Drive Barnet EN4 8UD

    Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 3.00 metres and eaves height of 2.60 metres, following demolition of the existing rear extension.

    31 Aug 2026 Prior approval