8 Mereland Way St Helens Merseyside WA9 3AG Data via plota.co.uk

P/2026/0412/HHPA - Householder Prior Approval Approved

Proposal

Prior approval for proposed single storey rear extension, projecting 6m from the rear, 3.6m max height, and 2.45m at the eaves. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
12 Aug 2026
✓
Validated
18 Aug 2026
✓
Consultation
25 Aug 2026
✓
Approved
17 Sept 2026

Approved on 17 Sept 2026 · Delegated Decision · Last checked 18 Sept 2026

Site constraints 4

Radon affected area, class 5
An estimated 10 to 30% of homes reach the radon action level. Indicative for the 1 km square, which takes the highest class found in it; a radon test gives the answer for a building.
From the British Geological Survey and UK Health Security Agency indicative atlas. Under building regulations, as the BRE guide BR 211 (2023) sets out, new buildings and extensions need basic radon protection from class 3 in England and Wales and from class 2 in Scotland, and full protection from class 5. The class at the site itself, from the detailed BGS map, decides which.
UKHSA radon ↗
Also on the record
Local nature reserve 343 m away: Colliers Moss Common; Coalfield, development low risk area; Inside the St Helens (St. Helens) built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the Mining Remediation Authority, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

Building

Floor area79 m² (850 sq ft)
Energy ratingC (78 out of 100), could reach B
PropertySemi-detached house, 4 habitable rooms
Built1950 to 1966
HeatingBoiler and radiators, mains gas
WallsSystem built, as built, no insulation (assumed)

From the energy performance certificate lodged in May 2022, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
St Helens
Application type
Householder Prior Approval
Postcode
WA9 3AG
Received
12 Aug 2026
Validated
18 Aug 2026
Ward
Parr Ward
Case officer
Show
Target decision
29 Sept 2026
Decision
Prior Not Required
Decision date
17 Sept 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Keith Swain Design

How this decision compares

Decided in 30 days from validation, 22 days faster than St Helens's median of 52 for extensions. Approved, as 95% of extensions here are.

78%decided within 8 weeks
95%approved
258decided in the last year

Plota live figures for extensions decided by St Helens in the last twelve months, from validation. St Helens decision record →

Public comments

No public comments yet.

4 neighbours consulted · Last counted 18 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Neighbours
25 Aug 2026
Consultation
25 Aug 2026
Comments by
16 Sept 2026
Statutory expiry
29 Sept 2026
Env. assessment
No
St Helens
Planning Authority Score
8.2/10
Excellent
#22 of 296 councils
Relevant to this application:
Householder decisions

St Helens is faster than most councils at deciding householder applications, ranking #38 out of 296. Householder applications are more likely to be approved here than most councils, with a 97% approval rate vs 90% nationally.

More permissive than most councils
97% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
St Helens decision statistics
Based on MHCLG data, the year to March 2026
95%
Overall approval rate
Above avg (87%) #28 of 296
97%
Householder approved
Above avg (90%) #43 of 296
80%
Decided in 8 weeks
Above avg (63%) #38 of 296
33%
Extended time limit
Below avg (41%) #81 of 296
90%
Minor dwellings approved
20 decided (1-9 homes)
75%
Major dwellings approved
12 decided (10+ homes)
91%
Change of use approved
46 decided
499
Total decisions
26 refused in the year to March 2026

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.