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Planning application

13 Mercer Road Haydock St Helens WA11 0SS

Granted St. Helens P/2026/0159/HHFP Householder Planning Application

Works: Extension Small domestic

Read from the description, not a valuation. How we read the register

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Two storey side extension and single storey rear extension.

As published by the council, reference P/2026/0159/HHFP

Application record

Reference
P/2026/0159/HHFP
Type
Householder Planning Application
Status
Decided
Decision
Granted As published: Grant
Received
16 Mar 2026
Validated
23 Mar 2026
Decided
15 May 2026
Ward
Haydock Ward
Decision by
Delegated Decision
Postcode
WA11 0SS

Timeline

Dates from the published record

  1. 16 Mar 2026

    Received by St. Helens

  2. 23 Mar 2026

    Validated

    Checked as complete and ready for consideration.

  3. 15 May 2026

    Decision issued: Grant

  4. 24 Aug 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Space Architectural Ltd Agent, an architecture practice registered in St. Helens

Active · incorporated 2019 · St. Helens

34 applications on PlanIndex · across 8 councils · 96% granted

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

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Documents

Plans, drawings, consultee responses and the officer's report

11 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

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What this grant of permission means

St. Helens granted permission on 15 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.

About householder applications

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.

Nearby applications

Within 0.3 miles

  • 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

  • 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

  • 7 Mercer Road Haydock St Helens WA11 0SS

    P/2026/0232/HHFP Submitted 7 May 2026 50 yards away

    Single storey side and rear extension.

    Granted Householder Extension 6 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

  • 24 Woolston Road Haydock St Helens WA11 0FQ

    P/2026/0347/HHPA Submitted 2 Jul 2026 50 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

  • 8 Poplar Grove Haydock St Helens WA11 0SR

    P/2022/0003/HHFP Submitted 24 Dec 2021 100 yards away

    Two storey side extension.

    Granted Householder Extension 10 docs
    Domestic

In St. Helens

  • 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