Postcode district outlook

Hosepipe ban in CO3

The hosepipe ban position for the CO3 postcode district — 866 live postcodes, served mostly by Anglian Water — checked against the national index on 19 August 2026. This is an index check, not a prediction.

The answer for CO3

Active

An official Temporary Use Ban is active for the Anglian Water supply area that covers most of CO3.

Postcodes
866
Primary supplier
Anglian Water
Share of district
100%
Sectors
5

Water-supply boundaries can cross postcode districts. View the official notice · Check an exact postcode for a definitive answer

Garden watering decision · CO3

Do not use a hosepipe

Hold off

A hosepipe restriction is active for this supply area. Follow your supplier’s notice and use only the watering methods it permits.

No weather-led watering estimate is being shown. This card updates automatically when a fresh forecast is published.

An official hosepipe restriction is currently active.

Estimate for an established mixed garden border · CO3 district

The answer compares the latest Met Office forecast with an estimated garden water need. It is guidance, not a precise measurement, and a hosepipe ban always takes priority.

Water suppliers covering CO3

The supplier split is mapped from the district’s centroid across the published water resource zones and is a guide, not an address-level guarantee.

Water resource zones near CO3

CO3 maps to the water resource zone below. Zones are the official planning areas suppliers use to report how much water they have.

Find your exact postcode

Every live postcode in CO3 is listed below. Choose one to open its local water outlook, or use the search box to find a specific address.

Pick a postcode to open its local water outlook

CO3 0 (205 postcodes)
CO3 3 (231 postcodes)
CO3 3AACO3 3ABCO3 3ADCO3 3AECO3 3AFCO3 3AGCO3 3AHCO3 3AJCO3 3ALCO3 3ANCO3 3APCO3 3AQCO3 3ARCO3 3ASCO3 3ATCO3 3AUCO3 3AWCO3 3AXCO3 3AYCO3 3AZCO3 3BACO3 3BBCO3 3BDCO3 3BECO3 3BGCO3 3BHCO3 3BJCO3 3BLCO3 3BNCO3 3BPCO3 3BQCO3 3BTCO3 3BUCO3 3BWCO3 3BZCO3 3DACO3 3DBCO3 3DDCO3 3DECO3 3DFCO3 3DGCO3 3DHCO3 3DJCO3 3DLCO3 3DNCO3 3DPCO3 3DQCO3 3DRCO3 3DSCO3 3DTCO3 3DUCO3 3DWCO3 3DXCO3 3DYCO3 3DZCO3 3EACO3 3EBCO3 3EDCO3 3EECO3 3EJCO3 3ENCO3 3ESCO3 3EYCO3 3EZCO3 3FACO3 3FFCO3 3FGCO3 3FJCO3 3FLCO3 3FNCO3 3FPCO3 3FQCO3 3GBCO3 3GECO3 3GTCO3 3GWCO3 3HACO3 3HDCO3 3HECO3 3HFCO3 3HHCO3 3HJCO3 3HLCO3 3HNCO3 3HPCO3 3HQCO3 3HRCO3 3HTCO3 3HUCO3 3HWCO3 3HXCO3 3HYCO3 3JACO3 3JBCO3 3JDCO3 3JECO3 3JFCO3 3JGCO3 3JHCO3 3JJCO3 3JNCO3 3JQCO3 3JRCO3 3JWCO3 3LDCO3 3LECO3 3LFCO3 3LGCO3 3LJCO3 3LLCO3 3LTCO3 3LUCO3 3LXCO3 3LYCO3 3LZCO3 3NACO3 3NDCO3 3NECO3 3NFCO3 3NGCO3 3NHCO3 3NLCO3 3NNCO3 3NPCO3 3NRCO3 3NSCO3 3NTCO3 3NUCO3 3NWCO3 3NXCO3 3NYCO3 3NZCO3 3PACO3 3PBCO3 3PDCO3 3PECO3 3PHCO3 3PJCO3 3PLCO3 3PNCO3 3PRCO3 3PSCO3 3PTCO3 3PWCO3 3PXCO3 3PYCO3 3PZCO3 3QACO3 3QDCO3 3QECO3 3QFCO3 3QGCO3 3QHCO3 3QJCO3 3QLCO3 3QNCO3 3QPCO3 3QQCO3 3QRCO3 3QSCO3 3QTCO3 3QUCO3 3QWCO3 3QXCO3 3QYCO3 3RACO3 3RBCO3 3RDCO3 3RFCO3 3RGCO3 3RHCO3 3RLCO3 3RNCO3 3RPCO3 3RQCO3 3RRCO3 3RSCO3 3RTCO3 3RUCO3 3RWCO3 3RXCO3 3RYCO3 3RZCO3 3SACO3 3SDCO3 3SECO3 3SFCO3 3SGCO3 3SHCO3 3SJCO3 3SPCO3 3SQCO3 3SRCO3 3SSCO3 3STCO3 3SUCO3 3SXCO3 3SYCO3 3SZCO3 3TACO3 3TBCO3 3TDCO3 3TECO3 3TFCO3 3TJCO3 3TLCO3 3TNCO3 3TPCO3 3TRCO3 3TSCO3 3TTCO3 3TUCO3 3TWCO3 3TXCO3 3TYCO3 3TZCO3 3UACO3 3UBCO3 3UDCO3 3UECO3 3UFCO3 3UJCO3 3ULCO3 3UNCO3 3USCO3 3UZCO3 3WDCO3 3WGCO3 3WLCO3 3XLCO3 3YB
CO3 4 (182 postcodes)
CO3 8 (100 postcodes)
CO3 9 (148 postcodes)

Local reservoir outlook

The most recent published reservoir readings for the suppliers serving this district:

  • Alton Water

    70.0% storage · observed 10 August 2026 · Detail

  • Ardleigh Water

    68.0% storage · observed 10 August 2026 · Detail

  • Covenham Water

    89.5% storage · observed 10 August 2026 · Detail

  • Grafham Water

    72.6% storage · observed 10 August 2026 · Detail

  • Pitsford Water

    69.7% storage · observed 10 August 2026 · Detail

Hosepipe ban rules for CO3

The rules that apply depend on your supplier’s notice. The general position: watering cans and buckets stay allowed, while a hosepipe connected to the mains is restricted during a Temporary Use Ban.

This is an index check, not a prediction. The postcode inventory comes from ONSPD Open Geography (onspd-latest-postcode-centroids), and the supplier split is mapped from district centroids. For a legally reliable answer for your address, use the exact-postcode checker or the supplier’s own checker.