180 Cat Hill Barnet EN4 8HU

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

• 25/4135/HSE Granted

  180 Cat Hill Barnet EN4 8HU

  Single storey side/rear extension (amended)

  Decided 23 Dec 2025 Householder
• 25/3390/PNH Refused

  180 Cat Hill Barnet EN4 8HU

  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.

  Decided 9 Sep 2025 Prior approval
• 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

1. 14 Oct 2025

   Received by Barnet

2. 21 Nov 2025

   Decision issued: Prior Approval Not Required

3. 10 Aug 2026

   Added to PlanIndex

Barnet granted permission on 21 November 2025, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

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.

• 180 Cat Hill Barnet EN4 8HU

  25/3390/PNH Submitted 13 Aug 2025 50 yards away

  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.

  Refused Prior approval Extension 6 docs
  Small domestic

• 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

• 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

• 74 Mansfield Avenue Barnet EN4 8QF

  25/4120/HSE Submitted 14 Oct 2025 100 yards 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 100 yards 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

• 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