18 Athenaeum Road London N20 9AE

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

• 26/2083/HSE Decided

  18 Athenaeum Road London N20 9AE

  Two storey side extension following demolition of the existing garage

  Submitted 4 Jun 2026 Householder
• 26/1893/PNH Withdrawn

  18 Athenaeum Road London N20 9AE

  Single storey rear extension with a proposed maximum depth of 6.0m, a maximum height of 2.95m and an eaves height of 2.85m

  Decided 11 Jun 2026 Prior approval
• 26/0820/192 Granted

  18 Athenaeum Road London N20 9AE

  Single storey rear extension with 2no. rooflights. Roof extension involving rear dormer window 2no. front facing rooflights and new side gable window

  Decided 29 Apr 2026 Lawful development

1. 5 Aug 2026

   Received by Barnet

2. 6 Aug 2026

   Validated

   Checked as complete and ready for consideration.

3. 7 Aug 2026

   Added to PlanIndex

4. 11 Sep 2026

   Status changed to Prior Approval Required and Refused

   Previously Pending Consideration.

Barnet has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. 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.

• 18 Athenaeum Road London N20 9AE

  26/2083/HSE Submitted 4 Jun 2026 50 yards away

  77% historically approved · decision due ~21 Aug

  Two storey side extension following demolition of the existing garage

  Decided Householder Extension Demolition 6 docs
  Domestic

• 18 Athenaeum Road London N20 9AE

  26/1893/PNH Submitted 20 May 2026 50 yards away

  Single storey rear extension with a proposed maximum depth of 6.0m, a maximum height of 2.95m and an eaves height of 2.85m

  Withdrawn Prior approval Extension 8 docs
  Small domestic

• 18 Athenaeum Road London N20 9AE

  26/0820/192 Submitted 4 Mar 2026 50 yards away

  Single storey rear extension with 2no. rooflights. Roof extension involving rear dormer window 2no. front facing rooflights and new side gable window

  Granted Lawful development Extension Loft or dormer +1 5 docs
  Small domestic

• 54 Oakleigh Gardens London N20 9AB

  21/5230/FUL Submitted 30 Sep 2021 100 yards away

  Conversion of existing dwelling into 2no self contained flats. Associated recycling/refuse storage area, cycle store and amenity space

  Refused Full applications New dwelling 13 docs
  Domestic

• 16 Oxford Gardens London N20 9AG

  25/5161/HSE Submitted 23 Dec 2025 100 yards away

  77% historically approved · decision due ~18 Feb

  Single storey side/rear extension with 3no. rooflights with new patio area. New front porch. Conversion of the existing garage into habitable room insertion of window to replace garage door. New side boundary fencing

  Awaiting decision Householder Extension Loft or dormer +1 8 docs
  Small domestic

• 1308 - 1312 High Road London N20 9HJ

  25/3910/S73 Submitted 23 Sep 2025 100 yards away

  93% historically approved · decision due ~20 Nov

  Variation of condition 1 (Approved Plans) of planning permission reference 25/3005/S73 dated 08.09.2025 (variation to 23/5437/FUL) for 'Part demolition of the existing building, extension to the ground floor commercial (flexible use - Class E), provision of six flats above existing commercial and erection of two detached houses at the rear of the site facing Oakleigh Gardens. Associated cycle parking, refuse and recycling and landscaping.' Variation to include alterations to the roof to provide an additional storey at third floor level and changing the second floor flats into duplex units

  Awaiting decision Conditions New dwelling Extension +1 13 docs
  Several homes

• 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