8 Thyra Grove London N12 8HB

This site has had 4 applications since 2026: 1 approved, 0 refused.

• 26/2358/PNH Decided

  8 Thyra Grove London N12 8HB

  Single storey rear extension with a maximum proposed depth of 4.9m, a maximum height of 3.42m and an eaves height of 2.93m

  Submitted 22 Jun 2026 Prior approval
• 26/2357/PNH Decided

  8 Thyra Grove London N12 8HB

  Single storey rear extension with a maximum proposed depth of 6.0m, a maximum height of 3.42m and an eaves height of 2.93m.

  Submitted 22 Jun 2026 Prior approval
• 26/1850/PNH Withdrawn

  8 Thyra Grove London N12 8HB

  Single storey rear extension following demolition of existing rear extension at a proposed depth of 6.0m from outrigger and 6.0m from the original rear wall, a maximum height of 3.42m and an eaves height of 2.93m

  Decided 12 Jun 2026 Prior approval

1. 11 Mar 2026

   Received by Barnet

2. 5 May 2026

   Decision issued: Lawful

3. 25 Jul 2026

   Added to PlanIndex

Barnet granted permission on 5 May 2026, 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.

• 8 Thyra Grove London N12 8HB

  26/1850/PNH Submitted 18 May 2026 50 yards away

  Single storey rear extension following demolition of existing rear extension at a proposed depth of 6.0m from outrigger and 6.0m from the original rear wall, a maximum height of 3.42m and an eaves height of 2.93m

  Withdrawn Prior approval Extension Demolition 11 docs
  Small domestic

• 8 Thyra Grove London N12 8HB

  26/2358/PNH Submitted 22 Jun 2026 50 yards away

  58% historically approved · decision due ~18 Aug

  Single storey rear extension with a maximum proposed depth of 4.9m, a maximum height of 3.42m and an eaves height of 2.93m

  Decided Prior approval Extension
  Small domestic

• 8 Thyra Grove London N12 8HB

  26/2357/PNH Submitted 22 Jun 2026 50 yards away

  58% historically approved · decision due ~18 Aug

  Single storey rear extension with a maximum proposed depth of 6.0m, a maximum height of 3.42m and an eaves height of 2.93m.

  Decided Prior approval Extension
  Small domestic

• 11 Thyra Grove London N12 8HB

  25/5143/PNH Submitted 22 Dec 2025 50 yards away

  58% historically approved · decision due ~16 Feb

  Single storey rear extension with a proposed depth of 6.00m, maximum height of 3.98m and eaves height of 2.98m following the demolition of the existing conservatory

  Awaiting decision Prior approval Extension Demolition 7 docs
  Small domestic

• 11 Thyra Grove London N12 8HB

  26/2208/PNH Submitted 15 Jun 2026 50 yards away

  2No. single storey rear extensions with a proposed depth of 6.00m, maximum height of 3.98m and eaves height of 2.98m following the demolition of the existing conservatory.

  Granted Prior approval Extension Demolition 9 docs
  Small domestic

• 16 Alexandra Grove London N12 8NU

  25/3694/192 Submitted 8 Sep 2025 100 yards away

  80% historically approved · decision due ~7 Nov

  Conversion of existing garage into habitable room, insertion of windows and door to replace garage door

  Awaiting decision Lawful development Windows or glazing 5 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
• 26/1907/191 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
• 26/2059/192 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
• 26/2066/192 Granted

  355 Hendon Way London NW4 3NB

  Roof extension involving rear dormer window and 3no. front facing rooflights. Removal of chimney on rear elevation (AMENDED DESCRIPTION)

  Received 3 Jun, published by the council 16 Aug 2026 Lawful development
• 26/2525/192 Granted

  39 Ridgeway Avenue Barnet EN4 8TN

  Single storey rear extension

  Received 6 Jul, published by the council 9 Aug 2026 Lawful development