142 Cat Hill Barnet EN4 8HU

1. 8 May 2024

   Received by Barnet

2. 25 Jun 2024

   Decision issued: Refuse

3. 7 Sep 2026

   Added to PlanIndex

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.

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.

• The Timbers Cat Hill Barnet EN4 8HU

  TPP/0431/26 Submitted 23 Jul 2026 50 yards away

  78% historically approved · decision due ~17 Sep

  1 x Poplar - Crown reduce the height and spread back to the previous reduction points (approx. 5m height and 4m spread). Remove major dead wood. Standing in Group G2 of Tree Preservation Order. 2 x Dead Cypress - Cut entire tree to ground level. Standing in Group G2 of Tree Preservation Order. (exempt works) (Amended description) 2 x Lombardy Poplar - Crown reduce down to a height of approx. 10 meters from ground level (approx. 10m height and 2m spread) of both Poplars and remove dead wood. Remove major dead wood. Standing in Group G2 of Tree Preservation Order. 1 x Dead Sycamore - Cut entire tree to ground level. Standing in Group G3 of Tree Preservation Order. (exempt works) 1 x Sycamore - Cut entire tree to ground level. Standing in Group G3 of Tree Preservation Order. (Amended description)

  Awaiting decision Trees

• Reedoaks 146A Cat Hill Barnet EN4 8HU

  TPP/0132/26 Submitted 9 Mar 2026 50 yards away

  9 x Poplar - Reduce all trees down to the height of 6.0m-6.5m from ground level (approx. 6.0m) leave as much growth on trees as possible for regrowth and screening. Standing in Group G6 of Tree Preservation Order. 1 x Dead Oak Sapling - Reduce down to a height of 3.5m-4.0m (approx. 5.0m). Standing in Group G1 of Tree Preservation Order. (Exempt)

  Granted Trees 6 docs

• 193 Cat Hill Barnet EN4 8HS

  26/04043/HOU Submitted 22 Sep 2026 150 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 150 yards away

  72% historically approved · decision due ~2 Dec

  Single storey rear extension including internal alterations.

  Awaiting decision Householder Extension
  Small domestic

• 84 Heddon Court Avenue, Barnet, EN4 9NG

  22/02939/OA Submitted 22 Aug 2022 150 yards away

  Erection of a rear outbuilding

  Granted 1 doc

• 67 Mansfield Avenue Barnet EN4 8QE

  TPP/0763/25 Submitted 14 Nov 2025 200 yards away

  1 x Hornbeam (applicants ref. T1) - Crown thin by 20%. Raise Crown an additional 0.5m from ground level making sure screening of shed is maintained. Reduce selected areas of the upper crown by pruning in the extraneous growth by approx 1m and lightly reduce any extraneous lateral growth to balance the light height reduction works. Do not reduce the whole tree as this would only encourage re-growth and change its natural shape. Remove dead wood. Standing in T22 of Tree Preservation Order.

  Granted Trees 4 docs
  Small domestic

• 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