261 Liverpool Road Haydock St Helens WA11 9RT Data via plota.co.uk

P/2026/0395/HHPA - Householder Prior Approval Approved

Proposal

Prior approval for a single storey rear extension projecting 3.9m from the rear, 2.85m overall height and 2.5m at the eaves Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
29 Jul 2026
✓
Validated
7 Aug 2026
✓
Consultation
11 Aug 2026
✓
Approved
7 Sept 2026

Approved on 7 Sept 2026 · Delegated Decision · Last checked 10 Sept 2026

Site constraints 6

Green belt: Merseyside and Greater Manchester
Inappropriate development needs very special circumstances.
Green belt policy allows a short list of exceptions, such as limited extensions and replacement buildings. Anything else needs very special circumstances that clearly outweigh the harm. Some green belt land can count as grey belt, where it does not strongly serve the green belt's purposes. The council decides this in its green belt assessment or on each application, so we do not mark it here.
Read the government guidance ↗
Coal mining development high risk area
Recorded coal mining features at or near the surface. Most planning applications here need a coal mining risk assessment.
From the Mining Remediation Authority, formerly the Coal Authority. The development high risk area marks recorded coal mining features at or near the surface: mine shafts and adits, shallow workings, mine gas and former opencast sites. Most planning applications there need a coal mining risk assessment; householder applications, changes of use and some minor works are exempt. Mine entry positions come from old plans and can be out by several metres, and unrecorded workings can exist anywhere in the coalfield.
Coal mining risk assessments ↗
Habitat network: Network Expansion Zone
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
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
Inside the Haydock built-up area; Natural England's Provisional ALC map (1:250,000, 1970s) had this area as grade 3, but it predates the buildings here and the current map does not class it as farmland.
Not affected
Outside flood zones 2 and 3 · No listed building at the site · No scheduled monument 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.

Sales history 1

Last sold for £300,000 in June 2026. Semi-detached house, leasehold.

19 June 2026£300,000

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area120 m² (1,292 sq ft)
Energy ratingD (66 out of 100), could reach C
PropertySemi-detached house, 6 habitable rooms
Built1930 to 1949
HeatingBoiler and radiators, mains gas
WallsCavity wall, as built, no insulation (assumed)

From the energy performance certificate lodged in January 2026, 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
WA11 9RT
Received
29 Jul 2026
Validated
7 Aug 2026
Ward
Haydock Ward
Case officer
Show
Target decision
18 Sept 2026
Decision
Prior Not Required
Decision date
7 Sept 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Space Architectural
Leaseholder
Show

How this decision compares

Decided in 31 days from validation, 21 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.

2 neighbours consulted · Last counted 10 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15120769
Planning Portal ref
PP-15120769
Neighbours
11 Aug 2026
Consultation
11 Aug 2026
Comments by
2 Sept 2026
Statutory expiry
18 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

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

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.

Leaseholders: Information produced by HM Land Registry. © Crown copyright 2026. Source: HM Land Registry, UK and overseas companies that own property in England and Wales, September 2026 release.