Trehaven St Andrews Close London N12 8BA

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

• TPP/0568/25 Decided

  Trehaven St Andrews Close London N12 8BA

  1 x Diseased Deodar Cedar - Remove. Standing in T159 of Tree Preservation Order. (Exempt Work)

  Decided 11 Sep 2025 Trees

1. 25 Nov 2025

   Received by Barnet

2. 26 Nov 2025

   Validated

   Checked as complete and ready for consideration.

3. 9 Dec 2025

   Decision issued: Lawful

4. 10 Aug 2026

   Added to PlanIndex

Barnet granted permission on 9 December 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.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• Trehaven St Andrews Close London N12 8BA

  TPP/0568/25 Submitted 9 Sep 2025 50 yards away

  1 x Diseased Deodar Cedar - Remove. Standing in T159 of Tree Preservation Order. (Exempt Work)

  Decided Trees 9 docs

• 10 Squirrels Close London N12 8AY

  25/4379/192 Submitted 3 Nov 2025 50 yards away

  Single storey rear extension. Roof extension involving hip to gable, rear dormer window and replacement and insertion of 3no. front facing rooflights and new side gable window. Conversion of the existing garage into habitable room, insertion of window to replace garage door. New outbuilding

  Refused Lawful development Extension Loft or dormer +1 14 docs
  Small domestic

• 10 Squirrels Close London N12 8AY

  26/0520/HSE Submitted 10 Feb 2026 50 yards away

  Single storey rear extension. Roof extension involving hip to gable, rear dormer window reduction, 3no. front facing rooflights and new side gable window. Conversion of the existing garage into habitable room, insertion of window and door to replace garage door. Removal of rear decking and levelling of rear garden (AMENDED DESCRIPTION)

  Granted Householder Extension Loft or dormer +1 15 docs
  Small domestic

• Aldwick Court Sonia Gardens London N12 8BB

  TPP/0740/25 Submitted 5 Nov 2025 100 yards away

  1 x Sycamore - Reduce overall crown volume by approximately 5 metres (30%) to alleviate mechanical stress and improve balance. Undertake major thinning to reduce wind loading and improve light penetration by 15%. Remove all major dead wood throughout the crown to reduce risk of branch failure. Standing in Group G126 of Tree Preservation Order (amended description)

  Granted Trees 7 docs

• Aldwick Court Sonia Gardens London N12 8BB

  TPP/0789/25 Submitted 21 Nov 2025 100 yards away

  1 x Sycamore (applicants ref. T4) - Reduce lateral growth by 3 metres to clear building. Standing in Group G126 of Tree Preservation Order.

  Granted Trees 13 docs

• Aldwick Court Sonia Gardens London N12 8BB

  TPP/0619/25 Submitted 25 Sep 2025 100 yards away

  88% historically approved · decision due ~20 Nov

  1 x Sycamore (applicants ref. T4) - Reduce lateral growth by 3 metres to clear building. Standing in Group G126 of Tree Preservation Order.

  Awaiting decision Trees 4 docs

• 26/2679/192 Granted

  21 Myddelton Park London N20 0JH

  Single storey rear extension and increase in ridge height of existing rear outrigger (Amended description).

  Received 20 Jul, published by the council 7 Aug 2026 Lawful development
• 26/1362/191 Refused

  145 Cotswold Gardens London NW2 1PL

  Use as a House in Multiple Occupation (HMO) for 6 people

  Received 14 Apr, published by the council 25 Jul 2026 Lawful development
• 26/1907/191 Granted

  8 Golders Manor Drive London NW11 9HT

  Use of the property as a self-contained residential unit at ground floor level and the first and second floors as a 4-bedroom, 4-person House in Multiple Occupation (Sui Generis) (AMENDED DESCRIPTION)

  Received 21 May, published by the council 16 Aug 2026 Lawful development
• 26/2392/192 Refused

  6 Mostyn Road Edgware HA8 0JD

  New front hardstanding and vehicular access to provide off-street parking

  Received 23 Jun, published by the council 9 Aug 2026 Lawful development
• 26/2059/192 Refused

  Low Ridge Rowley Lane Barnet EN5 3HS

  Erection of a rear outbuilding

  Received 3 Jun, published by the council 16 Aug 2026 Lawful development