Does SG16 flood?

Yes — parts of the SG16 district carry real flood risk: 7 of its 22 at-risk postcodes reach the Environment Agency's High likelihood band. The SG16 postcode district covers Clifton, Henlow & Langford, Cadwell, close to Arlesey, Shefford, Biggleswade, and surrounding villages in parts of Central Bedfordshire and Hertfordshire.

22 postcodes in the SG16 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 7 high, 4 medium, 11 low. A postcode not listed here has no properties in any recorded risk band (which is good news, but never proof it cannot flood).

Free preview first · full report £19

Which SG16 postcodes are at risk?

Rivers and flooding history near SG16

The rivers that matter here, each monitored live on FloodRadar:

Arlesey on the River Hiz — 1.5 km away, highest on record 1.40m
ARLESEY GS — 1.5 km away
SHEFFORD GS — 3.6 km away
Shefford on the River Flit — 3.6 km away, highest on record 1.74m

55 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (23 at warning level or above), most recently 15 February 2026. Warnings cover flood areas, not individual addresses.

Recorded flood extents near the district (Environment Agency record):

January 2003 (2003) — about 3.4 km from the centre
October 1993 (1993) — about 1.8 km from the centre
September 1992 (1992) — about 3.3 km from the centre
January 1988 (1988) — about 1.3 km from the centre

Records, not floods: no outline on the record is not evidence a place has not flooded.

🏠 Buying or renting in SG16? The full property flood-risk report covers any postcode here — the official likelihood band, every recorded flood nearby with distances, warning history year by year, how the local rivers behave, and an insurance outlook, print-ready for £19. See what's in the report →

Flood risk in nearby postcode districts

SG15 SG17 SG14 SG18 SG13 SG19 SG12 SG11

Band = the worst likelihood band of any property in that postcode (EA Risk of Flooding from Rivers & Sea, defence-adjusted, area-level). Check any postcode in detail — or get the full £19 property report — at the property flood-risk report. © Environment Agency copyright and/or database right 2025. All rights reserved. Some features of this map are based on digital spatial data from the Centre for Ecology & Hydrology, © NERC (CEH). © Crown Copyright and Database Rights 2025 OS AC0000807064. This product is produced in part from PAF® and Multiple Residence Data, the copyright in which is owned by Royal Mail Group Limited and/or Royal Mail Group plc. All rights reserved. Licence number AC0000807064.