homeduediligence
Oldham council area
Checked October 2026

Buying a home in OL4 (Oldham)

OL4 covers the Alexandra, Saddleworth North, Saddleworth South, Saddleworth West & Lees, Shaw, St James', St Mary's and Waterhead wards, in Oldham.

What the records show in OL4 (Oldham): parts of the area are a radon Affected Area, with up to 5–10% of homes above the action level; the British Geological Survey rates landslides as significant near all 8 postcodes we checked; old landfill lies within 500 m of all 7 postcodes we checked; and one postcode we checked is in a conservation area or on a listed building's site, including Lees.

Land Registry recorded 25 sales there in the last 3 years, with a median price of £175,000, and the most common were terraced homes.

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

Check a home in OL4

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 OL4 or of any home.

Flooding from rivers and the sea

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

All 8 postcodes we checked are outside mapped river and sea flood areas. Homes nearer a river or the coast can still be in one.

Surface water flooding

Flooding from heavy rain that can't drain away.

  • Low: 1 of 5 postcodes
  • Very low: 4 of 5 postcodes

We couldn't check 3 postcodes when this guide was built, so they aren't counted above.

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 5–10% 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: significant near all 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.

  • OL4 3LG: 20 sites within 500 m, nearest 20 m
  • OL4 3FW: 15 sites within 500 m, one covering the postcode centre
  • OL4 3HD: 16 sites within 500 m, nearest 60 m
  • OL4 5AA: 15 sites within 500 m, nearest 160 m
  • OL4 3JH: 18 sites within 500 m, nearest 30 m
  • OL4 4NX: 11 sites within 500 m, nearest 90 m
  • OL4 4SB: 13 sites within 500 m, nearest 140 m

We couldn't check 1 postcode when this guide was built, so they aren't counted above.

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.

  • Lees (conservation area) at OL4 5AA

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 Oldham was £217,214 in August 2026, up 4.6% on a year earlier, across every home in the council area.

At the postcodes we checked, Land Registry has 25 sales in the last 3 years, with a median of £175,000 and a range of £100,000 to £344,000, including 1 new build.

Sales at the postcodes we checked, last 3 years, by type
TypeSalesMedian price
Terraced13£145,000
Semi-detached10£251,500
Flats and maisonettes2£136,500

Crime

Measured around OL4 3LG, near the centre of OL4.

1 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 offences1

Schools near the centre

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

Oldham Metropolitan Borough 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
OL4 3LGOutsideLow5–10%Significant: landslides20 within 500 m
OL4 3FWOutsideVery low5–10%Significant: landslides15 within 500 m
OL4 3HDOutsideVery low5–10%Significant: landslides16 within 500 m
OL4 5AAOutsideVery low5–10%Significant: landslides15 within 500 m
OL4 3JHOutsideNot checked5–10%Significant: landslides18 within 500 m
OL4 4NXOutsideNot checked5–10%Significant: landslides11 within 500 m
OL4 4SBOutsideVery low5–10%Significant: landslides13 within 500 m
OL4 3BPOutsideNot checked5–10%Significant: landslidesNot checked

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 OL4 or any home.

Sources

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

  • HM Land Registry Price Paid Data
  • Contains British Geological Survey materials © UKRI 2026. BGS/UKHSA Indicative Atlas of Radon
  • Environment Agency, Historic Landfill Sites (Environment Agency Conditional Licence). Contains Environment Agency information © Environment Agency and/or database right.
  • 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)
  • 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.
  • data.police.uk street-level crime (Open Government Licence)
  • Department for Education, Get Information about Schools (Open Government Licence)

Other OL districts