Postcode district outlook

Hosepipe ban in CB21

The hosepipe ban position for the CB21 postcode district — 446 live postcodes, served mostly by Cambridge Water — checked against the national index on 19 August 2026. This is an index check, not a prediction.

The answer for CB21

No ban listed

No Temporary Use Ban is listed in the national index for CB21. Cambridge Water is the primary supplier.

Postcodes: 446
Primary supplier: Cambridge Water
Share of district: 100%
Sectors: 3

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

Garden watering decision · CB21

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 · CB21 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.

Enter your complete postcode for a more precise result

Water suppliers covering CB21

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.

Cambridge Water
Active100% of mapped units · high confidence · Full status page

Water resource zones near CB21

CB21 maps to the water resource zone below. Zones are the official planning areas suppliers use to report how much water they have.

Cambridge

Find your exact postcode

Every live postcode in CB21 is listed below. Choose one to open its local water outlook, or use the search box to find a specific address.

Search postcodes in CB21

Pick a postcode to open its local water outlook

CB21 4 (240 postcodes)

CB21 4AA CB21 4AB CB21 4AD CB21 4AE CB21 4AF CB21 4AG CB21 4AH CB21 4AL CB21 4AN CB21 4AP CB21 4AQ CB21 4AR CB21 4AS CB21 4AT CB21 4AU CB21 4AW CB21 4AX CB21 4AY CB21 4AZ CB21 4BA CB21 4BB CB21 4BE CB21 4BF CB21 4BG CB21 4DG CB21 4DJ CB21 4DP CB21 4DS CB21 4DT CB21 4DU CB21 4DW CB21 4DX CB21 4DY CB21 4DZ CB21 4EA CB21 4EB CB21 4ED CB21 4EE CB21 4EF CB21 4EG CB21 4EH CB21 4EJ CB21 4EL CB21 4EN CB21 4EP CB21 4EQ CB21 4ER CB21 4ES CB21 4EU CB21 4EW CB21 4EZ CB21 4FD CB21 4HA CB21 4HB CB21 4HD CB21 4HE CB21 4HF CB21 4HG CB21 4HH CB21 4HJ CB21 4HL CB21 4HQ CB21 4HS CB21 4HT CB21 4HU CB21 4HX CB21 4HY CB21 4JA CB21 4JB CB21 4JD CB21 4JE CB21 4JF CB21 4JG CB21 4JH CB21 4JJ CB21 4JL CB21 4JN CB21 4JP CB21 4JQ CB21 4JR CB21 4JS CB21 4JT CB21 4JW CB21 4JX CB21 4JY CB21 4JZ CB21 4LA CB21 4LB CB21 4LD CB21 4LE CB21 4LF CB21 4LG CB21 4LH CB21 4LJ CB21 4LL CB21 4LN CB21 4LP CB21 4LQ CB21 4LR CB21 4LS CB21 4LT CB21 4LU CB21 4LW CB21 4LX CB21 4LY CB21 4LZ CB21 4NA CB21 4NB CB21 4ND CB21 4NE CB21 4NF CB21 4NG CB21 4NH CB21 4NJ CB21 4NL CB21 4NN CB21 4NP CB21 4NQ CB21 4NR CB21 4NS CB21 4NT CB21 4NU CB21 4NW CB21 4NX CB21 4NY CB21 4NZ CB21 4PA CB21 4PB CB21 4PD CB21 4PE CB21 4PF CB21 4PG CB21 4PH CB21 4PL CB21 4PN CB21 4PP CB21 4PQ CB21 4PR CB21 4PS CB21 4PT CB21 4PW CB21 4PY CB21 4QA CB21 4QB CB21 4QD CB21 4QE CB21 4QF CB21 4QG CB21 4QH CB21 4QN CB21 4QP CB21 4QQ CB21 4QR CB21 4QS CB21 4QT CB21 4QU CB21 4QX CB21 4QY CB21 4QZ CB21 4RA CB21 4RB CB21 4RD CB21 4RE CB21 4RF CB21 4RG CB21 4RH CB21 4RJ CB21 4RN CB21 4RP CB21 4RQ CB21 4RR CB21 4RS CB21 4RT CB21 4RU CB21 4RW CB21 4RX CB21 4RY CB21 4RZ CB21 4SA CB21 4SB CB21 4SD CB21 4SF CB21 4SH CB21 4SJ CB21 4SN CB21 4SP CB21 4SR CB21 4SS CB21 4ST CB21 4SU CB21 4SW CB21 4SX CB21 4SY CB21 4SZ CB21 4TA CB21 4TB CB21 4TD CB21 4TE CB21 4TF CB21 4TG CB21 4TH CB21 4TJ CB21 4TL CB21 4TN CB21 4TP CB21 4TQ CB21 4TR CB21 4TT CB21 4TW CB21 4UA CB21 4UB CB21 4UD CB21 4UE CB21 4UF CB21 4UG CB21 4UH CB21 4UJ CB21 4UQ CB21 4UR CB21 4UW CB21 4UX CB21 4UY CB21 4XA CB21 4XB CB21 4XD CB21 4XE CB21 4XF CB21 4XG CB21 4XH CB21 4XJ CB21 4XN CB21 4XQ CB21 4XX CB21 4YL CB21 4YN CB21 4YP CB21 4YR CB21 4YS CB21 4YT CB21 4YW

CB21 5 (149 postcodes)

CB21 5AA CB21 5AB CB21 5AD CB21 5AE CB21 5AF CB21 5AG CB21 5AH CB21 5AJ CB21 5AL CB21 5AN CB21 5AP CB21 5AQ CB21 5AR CB21 5AS CB21 5AT CB21 5AY CB21 5AZ CB21 5BA CB21 5BB CB21 5BF CB21 5BG CB21 5BH CB21 5BJ CB21 5BL CB21 5BN CB21 5BS CB21 5BT CB21 5BU CB21 5BW CB21 5BX CB21 5BY CB21 5BZ CB21 5DA CB21 5DB CB21 5DD CB21 5DE CB21 5DF CB21 5DH CB21 5DJ CB21 5DL CB21 5DN CB21 5DP CB21 5DQ CB21 5DR CB21 5DS CB21 5DT CB21 5DU CB21 5DW CB21 5DX CB21 5DY CB21 5DZ CB21 5EA CB21 5EB CB21 5ED CB21 5EF CB21 5EG CB21 5EH CB21 5EJ CB21 5EP CB21 5EQ CB21 5ER CB21 5ES CB21 5ET CB21 5EU CB21 5EW CB21 5EX CB21 5EY CB21 5EZ CB21 5GA CB21 5GT CB21 5HA CB21 5HB CB21 5HD CB21 5HE CB21 5HF CB21 5HG CB21 5HH CB21 5HJ CB21 5HL CB21 5HN CB21 5HQ CB21 5HR CB21 5HS CB21 5HT CB21 5HU CB21 5HW CB21 5HX CB21 5HY CB21 5HZ CB21 5JA CB21 5JB CB21 5JD CB21 5JE CB21 5JF CB21 5JG CB21 5JH CB21 5JJ CB21 5JL CB21 5JN CB21 5JP CB21 5JQ CB21 5JS CB21 5JT CB21 5JW CB21 5JY CB21 5JZ CB21 5LA CB21 5LB CB21 5LD CB21 5LE CB21 5LF CB21 5LG CB21 5LJ CB21 5LP CB21 5LQ CB21 5LR CB21 5LS CB21 5LT CB21 5LU CB21 5LY CB21 5NA CB21 5NE CB21 5NF CB21 5NH CB21 5NJ CB21 5NL CB21 5NP CB21 5NQ CB21 5NR CB21 5NS CB21 5NT CB21 5NU CB21 5NX CB21 5NY CB21 5NZ CB21 5PA CB21 5PB CB21 5PE CB21 5PF CB21 5PH CB21 5RH CB21 5RJ CB21 5TA CB21 5XA CB21 5XB CB21 5XE CB21 5XG CB21 5XN CB21 5XY

CB21 6 (57 postcodes)

CB21 6AA CB21 6AB CB21 6AD CB21 6AE CB21 6AF CB21 6AG CB21 6AH CB21 6AJ CB21 6AL CB21 6AN CB21 6AP CB21 6AQ CB21 6AR CB21 6AS CB21 6AT CB21 6AU CB21 6AW CB21 6AX CB21 6AY CB21 6AZ CB21 6BA CB21 6BB CB21 6BD CB21 6BE CB21 6BG CB21 6BH CB21 6BJ CB21 6BL CB21 6BN CB21 6BP CB21 6BQ CB21 6BS CB21 6BT CB21 6BU CB21 6BW CB21 6BX CB21 6BY CB21 6BZ CB21 6DA CB21 6DB CB21 6DD CB21 6DE CB21 6DF CB21 6DG CB21 6DH CB21 6DJ CB21 6DL CB21 6DN CB21 6DP CB21 6DQ CB21 6GB CB21 6GH CB21 6GP CB21 6GQ CB21 6GS CB21 6GT CB21 6XR

Hosepipe ban rules for CB21

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.

Nearby postcode districts

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.