homeduediligence
St. Helens council area
Checked October 2026

Buying a home in WA11 (St. Helens)

WA11 covers the Billinge & Seneley Green, Blackbrook, Eccleston, Haydock, Moss Bank, Rainford, Rural South and Windle wards, in St. Helens and West Lancashire.

What the records show in WA11 (St. Helens): 1 of the 8 postcodes we checked is in a mapped river or sea flood area; old landfill lies within 500 m of 2 of the 8 postcodes we checked; and 3 postcodes we checked are in a conservation area or on a listed building's site, including St. Helens.

Land Registry recorded 14 sales there in the last 3 years, with a median price of £169,000.

From official records at 8 postcodes. Conditions change from street to street, so check the home you're buying.

Check a home in WA11

Enter a postcode or address for the free area check at that exact postcode.

At a glance

Facts from official records at sample postcodes, not a rating of WA11 or of any home.

Flooding from rivers and the sea

We checked each postcode centre against the Environment Agency's flood zones.

1 of the 8 postcodes we checked is in a mapped flood area:

A home in a mapped flood area can cost more to insure. Ask the seller about past flooding and any claims.

How to check flood risk for a particular home →

Surface water flooding

Flooding from heavy rain that can't drain away.

  • Low: 2 of 8 postcodes
  • Very low: 6 of 8 postcodes

Radon

From the UK Health Security Agency's map of each 1 km square.

At all 8 postcodes we checked, parts of the surrounding square are a radon Affected Area. The highest is up to 1–3% of homes above the action level.

The map shows the highest value in each square, not a measurement for any home. A three-month test tells you about a particular house.

How to check radon for a particular home →

Ground stability

British Geological Survey ratings for the surrounding area, not a particular plot.

  • Landslides: moderate near 2 of the 8 postcodes we checked

Non-coal mining hazard is low or none at every postcode we checked.

Ask your surveyor to look for cracking and movement, and the seller about subsidence claims.

How to check ground movement for a particular home →

Old landfill sites

Historic landfill sites within 500 m of each postcode centre.

  • WA11 9DY: 2 sites within 500 m, nearest 160 m
  • WA11 7LZ: 3 sites within 500 m, nearest 50 m

Most old landfill causes no problems, but a home on or next to one can be harder to mortgage.

How to check old landfill for a particular home →

Conservation areas and listed buildings

Whether each postcode centre falls in a conservation area, on a listed building's site, or under similar protections.

You need consent for many changes, such as new windows or an extension.

How to check conservation areas for a particular home →

Broadband and mobile

Ofcom's predictions for every address at the 8 postcodes we checked.

We couldn't get Ofcom's figures when this guide was built.

House prices

The average price in St Helens was £186,445 in August 2026, up 5.1% on a year earlier, across every home in the council area.

At the postcodes we checked, Land Registry has 14 sales in the last 3 years, with a median of £169,000 and a range of £105,000 to £387,500.

Sales at the postcodes we checked, last 3 years, by type
TypeSalesMedian price
Detached5£280,000
Terraced5£145,000
Semi-detached4£147,500

Crime

Measured around WA11 7PB, near the centre of WA11.

73 crimes were reported within about a mile of the centre in August 2026. Town centres usually have more, because of shops and nightlife.

  • Violence and sexual offences28
  • Anti-social behaviour12
  • Public order9
  • Criminal damage and arson8
  • Other theft6
  • Shoplifting3

Schools near the centre

The nearest schools by distance. Distance doesn't decide a place: each council's admissions rules do.

St Helens Council: Primary admissions ↗ · Secondary admissions ↗

Postcode by postcode

Each row is one postcode centre we checked. Open a postcode for the full free area check.

PostcodeRivers and seaSurface waterRadonGroundLandfill
WA11 7PBOutsideLow1–3%LowNone within 500 m
WA11 9DYOutsideVery low1–3%Low2 within 500 m
WA11 7PSOutsideLow1–3%LowNone within 500 m
WA11 7DQOutsideVery low1–3%ModerateNone within 500 m
WA11 7LZFlood Zone 3Very low1–3%Low3 within 500 m
WA11 7HGOutsideVery low1–3%LowNone within 500 m
WA11 7NGOutsideVery low1–3%ModerateNone within 500 m
WA11 7DJOutsideVery low1–3%LowNone within 500 m

What this guide can't tell you

  • It covers 8 postcodes, not every street, and leaves out planning applications: check the postcode you're buying in.
  • It isn't a survey, a search or advice, and doesn't rate WA11 or any home.

Sources

Checked 30 October 2026. We refresh these guides every month.

  • HM Land Registry Price Paid Data
  • Environment Agency, Historic Landfill Sites (Environment Agency Conditional Licence). Contains Environment Agency information © Environment Agency and/or database right.
  • Contains British Geological Survey materials © UKRI 2026. BGS/UKHSA Indicative Atlas of Radon
  • British Geological Survey, GeoSure 5 km and mining hazard 1 km hex grids (Open Government Licence). Contains NERC materials ©NERC 2026.
  • Environment Agency, Risk of Flooding from Surface Water (Open Government Licence)
  • Environment Agency flood risk zones via Planning Data England
  • Planning Data England (planning.data.gov.uk)
  • UK House Price Index (HM Land Registry and Registers of Scotland), Open Government Licence. Contains HM Land Registry data © Crown copyright and database right. Contains Registers of Scotland data © Crown copyright and database right.
  • Department for Education, Get Information about Schools (Open Government Licence)
  • data.police.uk street-level crime (Open Government Licence)

Other WA districts

Buying a home in WA11 (St. Helens): what to check