7 Mercer Road Haydock St Helens WA11 0SS

1. 7 May 2026

   Received by St. Helens

2. 15 Jun 2026

   Decision issued: Grant

3. 24 Aug 2026

   Added to PlanIndex

St. Helens granted permission on 15 June 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.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 9 Mercer Road Haydock St Helens WA11 0SS

  P/2021/0976/HHFP Submitted 5 Nov 2021 50 yards away

  Part two storey, part single storey side extension.

  Granted Householder Extension 6 docs
  Small domestic

• 9 Mercer Road Haydock St Helens WA11 0SS

  P/2021/0970/HHFP Submitted 3 Nov 2021 50 yards away

  Demolition of existing conservatory and erection of a new conservatory.

  Granted Householder Extension Demolition 11 docs
  Small domestic

• 13 Mercer Road Haydock St Helens WA11 0SS

  P/2026/0159/HHFP Submitted 16 Mar 2026 50 yards away

  Two storey side extension and single storey rear extension.

  Granted Householder Extension 11 docs
  Small domestic

• 10 Mercer Road Haydock St Helens WA11 0SS

  P/2023/0566/HHFP Submitted 3 Oct 2023 50 yards away

  Single storey rear and side wraparound extension and open front porch.

  Granted Householder Extension 7 docs
  Small domestic

• 8 Poplar Grove Haydock St Helens WA11 0SR

  P/2022/0003/HHFP Submitted 24 Dec 2021 50 yards away

  Two storey side extension.

  Granted Householder Extension 10 docs
  Domestic

• 24 Woolston Road Haydock St Helens WA11 0FQ

  P/2026/0347/HHPA Submitted 2 Jul 2026 100 yards away

  94% historically approved · decision due ~31 Aug

  Prior approval for single storey rear extension, projecting 4.05m from the rear, 3.6m max height, and 2.32m at the eaves.

  Decided Extension
  Small domestic

• P/2026/0449/HHFP Awaiting decision

  Culburn Warrington Road Bold Heath St Helens WA8 3UX

  Single storey rear extension and front porch.

  Received 1 Sep, published by the council 7 Sep 2026 Householder
• P/2026/0446/HHFP Awaiting decision

  8 Coylton Avenue Rainhill St Helens L35 0PT

  Rear ground floor extension, first floor side extension and conversion of garage/front porch space.

  Received 1 Sep, published by the council 4 Sep 2026 Householder
• P/2026/0437/HHFP Awaiting decision

  71 Brimstone Drive Newton Le Willows St Helens WA12 9LY

  Part two storey, part single storey wraparound extension

  Received 27 Aug, published by the council 1 Sep 2026 Householder
• P/2026/0229/CLP Granted

  7 Festival Road Rainford St Helens WA11 8EP

  Single storey rear extension.

  Received 2 May, published by the council 21 Jul 2026 Householder
• P/2026/0427/HHFP Awaiting decision

  47 Marina Avenue St Helens Merseyside WA9 3TE

  Two storey side and single storey rear extensions.

  Received 24 Aug, published by the council 1 Sep 2026 Householder