Postcode district outlook

Hosepipe ban in NN3

The hosepipe ban position for the NN3 postcode district — 1,315 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 NN3

Active

An official Temporary Use Ban is active for the Anglian Water supply area that covers most of NN3.

Postcodes
1,315
Primary supplier
Anglian Water
Share of district
100%
Sectors
8

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

Garden watering decision · NN3

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 · NN3 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 NN3

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 NN3

NN3 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 NN3 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

NN3 0 (7 postcodes)
NN3 2 (180 postcodes)
NN3 3 (200 postcodes)
NN3 5 (134 postcodes)
NN3 6 (186 postcodes)
NN3 7 (200 postcodes)
NN3 8 (234 postcodes)
NN3 8AANN3 8ABNN3 8ADNN3 8AENN3 8AFNN3 8AGNN3 8AJNN3 8ALNN3 8ANNN3 8APNN3 8AQNN3 8ARNN3 8ASNN3 8ATNN3 8AUNN3 8AWNN3 8AXNN3 8AZNN3 8BENN3 8BFNN3 8BNNN3 8BPNN3 8BTNN3 8BUNN3 8BWNN3 8BXNN3 8BYNN3 8BZNN3 8DANN3 8DBNN3 8DDNN3 8DENN3 8DFNN3 8DGNN3 8DHNN3 8DJNN3 8DLNN3 8DPNN3 8DRNN3 8DWNN3 8EHNN3 8EJNN3 8ELNN3 8ENNN3 8EPNN3 8ERNN3 8ESNN3 8EYNN3 8EZNN3 8FDNN3 8FZNN3 8HANN3 8HBNN3 8HDNN3 8HENN3 8HFNN3 8HGNN3 8HHNN3 8HJNN3 8HLNN3 8HNNN3 8HPNN3 8HQNN3 8HRNN3 8HSNN3 8HTNN3 8HUNN3 8HWNN3 8HXNN3 8HYNN3 8HZNN3 8JANN3 8JBNN3 8JDNN3 8JENN3 8JFNN3 8JGNN3 8JHNN3 8JJNN3 8JLNN3 8JNNN3 8JPNN3 8JRNN3 8JSNN3 8JTNN3 8JWNN3 8JYNN3 8JZNN3 8LANN3 8LBNN3 8LDNN3 8LENN3 8LFNN3 8LGNN3 8LHNN3 8LJNN3 8LLNN3 8LNNN3 8LPNN3 8LQNN3 8LRNN3 8LSNN3 8LTNN3 8LUNN3 8LWNN3 8LXNN3 8LYNN3 8LZNN3 8NANN3 8NBNN3 8NDNN3 8NENN3 8NFNN3 8NGNN3 8NHNN3 8NJNN3 8NNNN3 8NPNN3 8NQNN3 8NRNN3 8NUNN3 8NWNN3 8NXNN3 8NYNN3 8NZNN3 8PANN3 8PBNN3 8PDNN3 8PENN3 8PFNN3 8PGNN3 8PHNN3 8PJNN3 8PLNN3 8PNNN3 8PPNN3 8PSNN3 8PTNN3 8PUNN3 8PWNN3 8PXNN3 8PYNN3 8PZNN3 8QANN3 8QBNN3 8QDNN3 8QENN3 8QFNN3 8QGNN3 8QHNN3 8QJNN3 8QLNN3 8QNNN3 8QPNN3 8QQNN3 8QRNN3 8QSNN3 8QTNN3 8QUNN3 8QWNN3 8QXNN3 8QYNN3 8RDNN3 8RENN3 8RFNN3 8RGNN3 8RHNN3 8RJNN3 8RNNN3 8RQNN3 8RSNN3 8RTNN3 8RUNN3 8SANN3 8SBNN3 8SFNN3 8SGNN3 8SHNN3 8SSNN3 8STNN3 8SXNN3 8TANN3 8TBNN3 8TDNN3 8TENN3 8TJNN3 8TPNN3 8TRNN3 8TSNN3 8TTNN3 8TWNN3 8TYNN3 8TZNN3 8UANN3 8UFNN3 8UGNN3 8UHNN3 8UNNN3 8UPNN3 8UQNN3 8URNN3 8USNN3 8UTNN3 8UUNN3 8UWNN3 8UXNN3 8XANN3 8XBNN3 8XJNN3 8XNNN3 8XPNN3 8XRNN3 8XSNN3 8XTNN3 8XUNN3 8XWNN3 8XXNN3 8XYNN3 8XZNN3 8YANN3 8YBNN3 8YDNN3 8YENN3 8YFNN3 8YGNN3 8YHNN3 8YJNN3 8YLNN3 8YNNN3 8YPNN3 8YRNN3 8YSNN3 8YUNN3 8YY
NN3 9 (174 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 NN3

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.