15 Coniston Avenue Oxford Oxfordshire OX3 0AN

This site has had 2 applications since 2025.

• 26/00638/FUL Awaiting decision

  15 Coniston Avenue Oxford Oxfordshire OX3 0AN

  Demolition of existing rear extension. Erection of a part single, part two-storey rear extension. Formation of a front porch. Alterations to fenestration.

  Submitted 13 Mar 2026 Full applications

1. 19 Dec 2025

   Received by Oxford

2. 9 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 13 February 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Oxford took a median of 47 days over the applications it decided in the last year.

This application is with Oxford for determination, against a statutory target of eight weeks. Over the last year Oxford decided prior approval applications in a median of 37 days. More in our guide to how long planning decisions take.

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.

• 15 Coniston Avenue Oxford Oxfordshire OX3 0AN

  26/00638/FUL Submitted 13 Mar 2026 50 yards away

  85% historically approved · decision due ~8 May

  Demolition of existing rear extension. Erection of a part single, part two-storey rear extension. Formation of a front porch. Alterations to fenestration.

  Awaiting decision Full applications Extension Demolition +1 11 docs
  Small domestic

• 17 Coniston Avenue Oxford OX3 0AN

  18/02105/CPU Submitted 7 Aug 2018 50 yards away

  Application to certify that the proposed erection of a single storey rear extension is lawful development.

  Refused Outline Extension 12 docs
  Small domestic

• 17 Coniston Avenue Oxford OX3 0AN

  18/02855/FUL Submitted 25 Oct 2018 50 yards away

  Erection of single storey rear extension.

  Granted Full applications Extension 13 docs
  Small domestic

• 17 Coniston Avenue Oxford OX3 0AN

  19/00703/FUL Submitted 17 Mar 2019 50 yards away

  Demolition of existing rear extension. Erection of single storey rear extension. Insertion of 1no. window to side elevation

  Refused Full applications Extension Demolition +1 15 docs
  Small domestic

• 7 Coniston Avenue Oxford Oxfordshire OX3 0AN

  19/00350/FUL Submitted 12 Feb 2019 50 yards away

  Demolition of existing conservatory and erection of a single storey rear extension.

  Granted Full applications Extension Demolition 9 docs
  Small domestic

• 7 Coniston Avenue Oxford OX3 0AN

  18/02160/CPU Submitted 14 Aug 2018 50 yards away

  Demolition of existing conservatory to rear. Erection of single storey rear extension. Enlargement of 1no. window to ground floor on the side elevation.

  Withdrawn Outline Extension Demolition +1 5 docs
  Small domestic

• 26/01080/H42 Refused

  42 Westbury Crescent Oxford Oxfordshire OX4 3RZ

  Application for prior approval for the erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 6.0m, for which the maximum height would be 3.0m, and for which the height of the eaves would be 3.0m

  Received 1 May, published by the council 9 Aug 2026 Prior approval
• 26/00857/H42 Withdrawn

  86 Morrell Avenue Oxford Oxfordshire OX4 1NA

  Application for prior approval for the erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 5.50m, for which the maximum height would be 2.90m, and for which the height of the eaves would be 2.50m.

  Received 8 Apr, published by the council 9 Aug 2026 Prior approval
• 26/00557/H42 Granted

  49 Latimer Road Oxford Oxfordshire OX3 7PG

  Application for prior approval for the erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 5.90m, for which the maximum height would be 3.91m, and for which the height of the eaves would be 2.4m.

  Received 5 Mar, published by the council 9 Aug 2026 Prior approval
• 26/00577/H42 Granted

  396 Marston Road Oxford Oxfordshire OX3 0JD

  Application for prior approval for the erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4.0m, for which the maximum height would be 4.0m, and for which the height of the eaves would be 3.0m.

  Received 9 Mar, published by the council 9 Aug 2026 Prior approval
• 26/00550/H42 Granted

  54 Charles Street Oxford Oxfordshire OX4 3AS

  Application for prior approval for the erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 6m, for which the maximum height would be 3m, and for which the height of the eaves would be 3m.

  Received 5 Mar, published by the council 9 Aug 2026 Prior approval