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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
Refused As published: 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

AS ARCHITECTURAL SERVICES LTD Agent, an architecture practice

48 applications on PlanIndex · across 7 councils · 60% granted

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

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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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Open the documents

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 0.3 miles

  • 180 Cat Hill Barnet EN4 8HU

    25/4135/HSE Submitted 14 Oct 2025 50 yards 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 50 yards 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 50 yards 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
  • Land Adjacent To Azalea Court 1 Ebony Crescent Enfield EN4 8FF

    22/01933/TPO Submitted 30 May 2022 50 yards away

    Works to various trees protected by LBE Tree Preservation Order (No.351) 2011: 3x self seeded ash saplings (TG2)- adjacent to front driveway-fell to ground level and poison stumps to inhibit regrowth, 2x ash and 1x sycamore (TG1) overhanging rear garden-reduce overhang by no more than 2m, pruning back to suitable growth furniture, 1x oak(T3)- cut back large overhanging limb by no more than 2m, pruning back to suitable growth furniture

    Granted Trees 4 docs
  • 193 Cat Hill Barnet EN4 8HS

    26/04043/HOU Submitted 22 Sep 2026 100 yards away

    72% historically approved · decision due ~4 Dec

    Two storey side extension involving conversion of garage into habitable room, hip to gable roof extension, rear dormer, front entrance porch and replacement of all windows.

    Awaiting decision Householder Extension Loft or dormer +1
    Small domestic
  • 193 Cat Hill Barnet EN4 8HS

    26/04209/HOU Submitted 2 Oct 2026 100 yards away

    72% historically approved · decision due ~2 Dec

    Single storey rear extension including internal alterations.

    Awaiting decision Householder Extension
    Small domestic

In Barnet

  • 26/3835/PNH Awaiting decision

    3 Devonshire Crescent London NW7 1DN

    Single storey rear extension with a proposed depth of 5.00 metres, maximum height of 3.48 metres and eaves height of 3.00 metres. Following demolition of existing rear outrigger.

    22 Oct 2026 Prior approval
  • 26/3832/PNH Awaiting decision

    48 Alverstone Avenue Barnet EN4 8EB

    Single storey rear extension with a proposed depth of 4.5 metres, maximum height of 3.15 metres and eaves height of 3 metres following demolition of existing rear extension.

    22 Oct 2026 Prior approval
  • 26/3823/PNH Awaiting decision

    7 Southbourne Crescent London NW4 2LB

    Single storey rear extension added to an existing extension with the total extension measuring 6.00 metres deep, with a maximum height of 3.00 metres and an eaves height of 3.00 metres.

    21 Oct 2026 Prior approval
  • 26/3809/PND Awaiting decision

    10 Clifford Road Barnet EN5 5PG

    Demolition of existing garage

    21 Oct 2026 Prior approval
  • 26/3819/PNH Awaiting decision

    78 Russell Lane London N20 0AP

    2no. Single storey rear extensions with a proposed depth of 7.00 metres, maximum height of 3.60 metres and eaves height of 3.00 metres. Following demolition of the existing side/rear outrigger.

    Received 20 Oct, published by the council 22 Oct 2026 Prior approval