18 Monmouth Street Oldham OL9 7RL

1. 14 Apr 2021

   Received by Oldham

2. 25 May 2021

   Decision issued: Prior Approval Extension Not Required

3. 6 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

Prior approval applications arise where permitted development rights already grant the principle of the work, such as larger home extensions, changes of use to housing or agricultural buildings. The council may only consider the specific matters set out in the rules, for example transport, flooding or appearance, and in many classes the work may proceed if the council does not respond within the deadline, commonly 56 days.

More on prior approval applications in our guide

• 27 Monmouth Street Oldham OL9 7RL

  HH/345211/20 Submitted 29 Jul 2020 4m away

  proposed single storey rear extension

  Granted Full applications Extension 7 docs
  Small domestic

• 27 Monmouth Street Oldham OL9 7RL

  PREX/344927/20 Submitted 29 May 2020 36m away

  Single storey rear extension: max length: 5.7m max height: 4.0m height to eaves: 2.68m

  Refused Prior approval Extension 5 docs
  Small domestic

• 78 Oxford Street Oldham OL9 7SL

  HOU/355545/26 Submitted 13 Jan 2026 62m away

  1. Part single storey, part two storey rear extension 2. Rear dormer.

  Granted Householder Extension Loft or dormer 21 docs
  Small domestic

• 82 Oxford Street Oldham OL9 7SL

  HOU/349249/22 Submitted 14 Jun 2022 65m away

  Single storey rear extension.

  Granted Householder Extension 4 docs
  Small domestic

• 68 Oxford Street Oldham OL9 7SL

  PDE/353638/24 Submitted 29 Oct 2024 66m away

  Prior approval relating to the erection of a single storey rear extension with a maximum length of 6m, maximum height of 3m and height to eaves of 3m.

  Refused Prior approval Extension 8 docs
  Small domestic

• 84 Oxford Street Oldham OL9 7SL

  HOU/349269/22 Submitted 21 Jun 2022 66m away

  Single storey rear extension.

  Granted Householder Extension 4 docs
  Small domestic

• PDE/356703/26 Awaiting decision

  21 Petworth Road Chadderton Oldham OL9 9BG

  Erection of a single storey rear extension with a maximum length of 4m, maximum height of 3.8m and height to eaves of 2.50m

  14 Aug 2026 Prior approval
• PDE/356132/26 Granted

  Hillsby Kinders Lane Greenfield Oldham OL3 7BG

  Single storey rear extension. Length - 5.26m Maximum Height - 3.80m Heights to Eaves - 3.00m

  30 Apr 2026 Prior approval
• PDE/356183/26 Granted

  58 Mona Road Chadderton Oldham OL9 8ND

  Single storey rear extension with a maximum length of 5.00m, maximum height of 3.50m, and height to eaves of 2.65m.

  8 May 2026 Prior approval
• PDE/356188/26 Granted

  20 Marlborough Street Oldham OL4 1RW

  Single storey rear extension with a maximum length of 4.30m, maximum height of 3.00m, and height to eaves of 3.00m.

  8 May 2026 Prior approval
• PDE/356172/26 Granted

  Rock Farm Huddersfield Road Delph Oldham OL3 5LU

  1) Demolition of single storey rear extension 2) Erection of single storey rear extension Length - 8m Maximum Height - 3.0m Height to Eaves - 3.0m

  7 May 2026 Prior approval