TW16 postcode district: Sunbury-on-Thames and around, Surrey

TW16 is a postcode district in Surrey, with 538 postcodes in use in 4 sectors. It has postcodes in Sunbury-on-Thames, Ashford Common and Upper Halliford. It is split between 2 councils: Spelthorne (535 postcodes) and Elmbridge (3).

Postcodes in use
538
Sectors
4
Councils
2 councils
Places
3 places

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in TW16, by flood risk

Map of every postcode in TW16, by flood risk Of the 538 postcodes in TW16 that ONS places, 20 have a home or business at high risk, 5 are at medium risk at worst, 86 are at low risk at worst, 154 are at very low risk only and 273 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 6 postcodes at high or medium risk. Places named: Sunbury-on-Thames, Upper Halliford. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. M3A316 TW16 5AA: not on the flood risk listTW16 5AF: not on the flood risk listTW16 5AG: not on the flood risk listTW16 5AH: not on the flood risk listTW16 5AL: not on the flood risk listTW16 5AN: not on the flood risk listTW16 5AQ: not on the flood risk listTW16 5AT: not on the flood risk listTW16 5AU: not on the flood risk listTW16 5AX: not on the flood risk listTW16 5AY: not on the flood risk listTW16 5BB: not on the flood risk listTW16 5BF: not on the flood risk listTW16 5BL: not on the flood risk listTW16 5DD: not on the flood risk listTW16 5DL: not on the flood risk listTW16 5DU: not on the flood risk listTW16 5DX: not on the flood risk listTW16 5DY: not on the flood risk listTW16 5DZ: not on the flood risk listTW16 5EA: not on the flood risk listTW16 5EB: not on the flood risk listTW16 5ED: not on the flood risk listTW16 5EE: not on the flood risk listTW16 5EF: not on the flood risk listTW16 5EG: not on the flood risk listTW16 5EJ: not on the flood risk listTW16 5ES: not on the flood risk listTW16 5EX: not on the flood risk listTW16 5EY: not on the flood risk listTW16 5EZ: not on the flood risk listTW16 5GA: not on the flood risk listTW16 5GB: not on the flood risk listTW16 5HA: not on the flood risk listTW16 5HB: not on the flood risk listTW16 5HD: not on the flood risk listTW16 5HE: not on the flood risk listTW16 5HF: not on the flood risk listTW16 5HJ: not on the flood risk listTW16 5HL: not on the flood risk listTW16 5HN: not on the flood risk listTW16 5HP: not on the flood risk listTW16 5HR: not on the flood risk listTW16 5HS: not on the flood risk listTW16 5HT: not on the flood risk listTW16 5HW: not on the flood risk listTW16 5HX: not on the flood risk listTW16 5HY: not on the flood risk listTW16 5HZ: not on the flood risk listTW16 5JD: not on the flood risk listTW16 5JH: not on the flood risk listTW16 5JJ: not on the flood risk listTW16 5JL: not on the flood risk listTW16 5JN: not on the flood risk listTW16 5JP: not on the flood risk listTW16 5JS: not on the flood risk listTW16 5JU: not on the flood risk listTW16 5JW: not on the flood risk listTW16 5JX: not on the flood risk listTW16 5JY: not on the flood risk listTW16 5JZ: not on the flood risk listTW16 5LA: not on the flood risk listTW16 5LB: not on the flood risk listTW16 5LD: not on the flood risk listTW16 5LF: not on the flood risk listTW16 5LG: not on the flood risk listTW16 5LH: not on the flood risk listTW16 5LJ: not on the flood risk listTW16 5LL: not on the flood risk listTW16 5LN: not on the flood risk listTW16 5LP: not on the flood risk listTW16 5LQ: not on the flood risk listTW16 5LR: not on the flood risk listTW16 5LS: not on the flood risk listTW16 5LT: not on the flood risk listTW16 5LU: not on the flood risk listTW16 5LX: not on the flood risk listTW16 5LY: not on the flood risk listTW16 5LZ: not on the flood risk listTW16 5NA: not on the flood risk listTW16 5NB: not on the flood risk listTW16 5ND: not on the flood risk listTW16 5NE: not on the flood risk listTW16 5NF: not on the flood risk listTW16 5NG: not on the flood risk listTW16 5NH: not on the flood risk listTW16 5NJ: not on the flood risk listTW16 5NL: not on the flood risk listTW16 5NN: not on the flood risk listTW16 5NP: not on the flood risk listTW16 5NQ: not on the flood risk listTW16 5NR: not on the flood risk listTW16 5NS: not on the flood risk listTW16 5NT: not on the flood risk listTW16 5NU: not on the flood risk listTW16 5NW: not on the flood risk listTW16 5NX: not on the flood risk listTW16 5NY: not on the flood risk listTW16 5PA: not on the flood risk listTW16 5PF: not on the flood risk listTW16 5PL: not on the flood risk listTW16 5PT: not on the flood risk listTW16 5PU: not on the flood risk listTW16 5PY: not on the flood risk listTW16 5QH: not on the flood risk listTW16 5QL: not on the flood risk listTW16 5QN: not on the flood risk listTW16 5WP: not on the flood risk listTW16 6AB: not on the flood risk listTW16 6AD: not on the flood risk listTW16 6AE: not on the flood risk listTW16 6AL: not on the flood risk listTW16 6AN: not on the flood risk listTW16 6AW: not on the flood risk listTW16 6BA: not on the flood risk listTW16 6BE: not on the flood risk listTW16 6BF: not on the flood risk listTW16 6DB: not on the flood risk listTW16 6DD: not on the flood risk listTW16 6DE: not on the flood risk listTW16 6DF: not on the flood risk listTW16 6DQ: not on the flood risk listTW16 6DW: not on the flood risk listTW16 6EE: not on the flood risk listTW16 6EF: not on the flood risk listTW16 6EH: not on the flood risk listTW16 6EL: not on the flood risk listTW16 6HA: not on the flood risk listTW16 6HB: not on the flood risk listTW16 6HD: not on the flood risk listTW16 6HE: not on the flood risk listTW16 6HF: not on the flood risk listTW16 6HG: not on the flood risk listTW16 6HH: not on the flood risk listTW16 6HJ: not on the flood risk listTW16 6HL: not on the flood risk listTW16 6HN: not on the flood risk listTW16 6HP: not on the flood risk listTW16 6HQ: not on the flood risk listTW16 6HR: not on the flood risk listTW16 6HT: not on the flood risk listTW16 6HW: not on the flood risk listTW16 6JA: not on the flood risk listTW16 6JB: not on the flood risk listTW16 6JD: not on the flood risk listTW16 6JH: not on the flood risk listTW16 6JJ: not on the flood risk listTW16 6JL: not on the flood risk listTW16 6JN: not on the flood risk listTW16 6JP: not on the flood risk listTW16 6JQ: not on the flood risk listTW16 6JW: not on the flood risk listTW16 6LE: not on the flood risk listTW16 6LS: not on the flood risk listTW16 6LT: not on the flood risk listTW16 6LU: not on the flood risk listTW16 6LX: not on the flood risk listTW16 6LZ: not on the flood risk listTW16 6NB: not on the flood risk listTW16 6NH: not on the flood risk listTW16 6NJ: not on the flood risk listTW16 6NN: not on the flood risk listTW16 6NP: not on the flood risk listTW16 6NQ: not on the flood risk listTW16 6NR: not on the flood risk listTW16 6NS: not on the flood risk listTW16 6NU: not on the flood risk listTW16 6NW: not on the flood risk listTW16 6NX: not on the flood risk listTW16 6PD: not on the flood risk listTW16 6PE: not on the flood risk listTW16 6PF: not on the flood risk listTW16 6PG: not on the flood risk listTW16 6PX: not on the flood risk listTW16 6PY: not on the flood risk listTW16 6PZ: not on the flood risk listTW16 6QA: not on the flood risk listTW16 6QD: not on the flood risk listTW16 6QE: not on the flood risk listTW16 6QF: not on the flood risk listTW16 6QJ: not on the flood risk listTW16 6QL: not on the flood risk listTW16 6QN: not on the flood risk listTW16 6QP: not on the flood risk listTW16 6QR: not on the flood risk listTW16 6QS: not on the flood risk listTW16 6QU: not on the flood risk listTW16 6QW: not on the flood risk listTW16 6QX: not on the flood risk listTW16 6QY: not on the flood risk listTW16 6QZ: not on the flood risk listTW16 6RA: not on the flood risk listTW16 6RB: not on the flood risk listTW16 6RD: not on the flood risk listTW16 6RE: not on the flood risk listTW16 6RG: not on the flood risk listTW16 6RH: not on the flood risk listTW16 6RQ: not on the flood risk listTW16 6RR: not on the flood risk listTW16 6RT: not on the flood risk listTW16 6RU: not on the flood risk listTW16 6RW: not on the flood risk listTW16 6RX: not on the flood risk listTW16 6SA: not on the flood risk listTW16 6SF: not on the flood risk listTW16 6SG: not on the flood risk listTW16 6SH: not on the flood risk listTW16 6SJ: not on the flood risk listTW16 6SL: not on the flood risk listTW16 6SN: not on the flood risk listTW16 6SP: not on the flood risk listTW16 6SQ: not on the flood risk listTW16 6SR: not on the flood risk listTW16 6SW: not on the flood risk listTW16 7BA: not on the flood risk listTW16 7BF: not on the flood risk listTW16 7BJ: not on the flood risk listTW16 7BL: not on the flood risk listTW16 7BN: not on the flood risk listTW16 7BT: not on the flood risk listTW16 7BU: not on the flood risk listTW16 7BW: not on the flood risk listTW16 7FJ: not on the flood risk listTW16 7FL: not on the flood risk listTW16 7HR: not on the flood risk listTW16 7HS: not on the flood risk listTW16 7HU: not on the flood risk listTW16 7HX: not on the flood risk listTW16 7JH: not on the flood risk listTW16 7JJ: not on the flood risk listTW16 7JR: not on the flood risk listTW16 7JT: not on the flood risk listTW16 7JU: not on the flood risk listTW16 7JX: not on the flood risk listTW16 7JY: not on the flood risk listTW16 7JZ: not on the flood risk listTW16 7LD: not on the flood risk listTW16 7LE: not on the flood risk listTW16 7LF: not on the flood risk listTW16 7LG: not on the flood risk listTW16 7LP: not on the flood risk listTW16 7LS: not on the flood risk listTW16 7LT: not on the flood risk listTW16 7LU: not on the flood risk listTW16 7NG: not on the flood risk listTW16 7PE: not on the flood risk listTW16 7PF: not on the flood risk listTW16 7PW: not on the flood risk listTW16 7QA: not on the flood risk listTW16 7QJ: not on the flood risk listTW16 7QQ: not on the flood risk listTW16 7QT: not on the flood risk listTW16 7QU: not on the flood risk listTW16 7RD: not on the flood risk listTW16 7TF: not on the flood risk listTW16 7TG: not on the flood risk listTW16 7TJ: not on the flood risk listTW16 7TQ: not on the flood risk listTW16 5AB: very low flood risk onlyTW16 5AD: very low flood risk onlyTW16 5AE: very low flood risk onlyTW16 5AP: very low flood risk onlyTW16 5AS: very low flood risk onlyTW16 5BE: very low flood risk onlyTW16 5BN: very low flood risk onlyTW16 5BP: very low flood risk onlyTW16 5BS: very low flood risk onlyTW16 5BT: very low flood risk onlyTW16 5BU: very low flood risk onlyTW16 5BW: very low flood risk onlyTW16 5BX: very low flood risk onlyTW16 5BY: very low flood risk onlyTW16 5BZ: very low flood risk onlyTW16 5DA: very low flood risk onlyTW16 5DB: very low flood risk onlyTW16 5DH: very low flood risk onlyTW16 5DJ: very low flood risk onlyTW16 5EQ: very low flood risk onlyTW16 6NL: very low flood risk onlyTW16 6PA: very low flood risk onlyTW16 6SB: very low flood risk onlyTW16 7AA: very low flood risk onlyTW16 7AB: very low flood risk onlyTW16 7AH: very low flood risk onlyTW16 7AT: very low flood risk onlyTW16 7AZ: very low flood risk onlyTW16 7BD: very low flood risk onlyTW16 7BG: very low flood risk onlyTW16 7BH: very low flood risk onlyTW16 7BP: very low flood risk onlyTW16 7BQ: very low flood risk onlyTW16 7BS: very low flood risk onlyTW16 7BX: very low flood risk onlyTW16 7BY: very low flood risk onlyTW16 7BZ: very low flood risk onlyTW16 7DA: very low flood risk onlyTW16 7DB: very low flood risk onlyTW16 7DF: very low flood risk onlyTW16 7DG: very low flood risk onlyTW16 7DJ: very low flood risk onlyTW16 7DL: very low flood risk onlyTW16 7DN: very low flood risk onlyTW16 7DP: very low flood risk onlyTW16 7DR: very low flood risk onlyTW16 7DU: very low flood risk onlyTW16 7DW: very low flood risk onlyTW16 7ES: very low flood risk onlyTW16 7EX: very low flood risk onlyTW16 7FA: very low flood risk onlyTW16 7FE: very low flood risk onlyTW16 7FF: very low flood risk onlyTW16 7FG: very low flood risk onlyTW16 7JD: very low flood risk onlyTW16 7LB: very low flood risk onlyTW16 7LH: very low flood risk onlyTW16 7LQ: very low flood risk onlyTW16 7LR: very low flood risk onlyTW16 7NB: very low flood risk onlyTW16 7ND: very low flood risk onlyTW16 7NE: very low flood risk onlyTW16 7NF: very low flood risk onlyTW16 7NH: very low flood risk onlyTW16 7NJ: very low flood risk onlyTW16 7NL: very low flood risk onlyTW16 7NN: very low flood risk onlyTW16 7NU: very low flood risk onlyTW16 7NW: very low flood risk onlyTW16 7NX: very low flood risk onlyTW16 7NY: very low flood risk onlyTW16 7NZ: very low flood risk onlyTW16 7PA: very low flood risk onlyTW16 7PB: very low flood risk onlyTW16 7PD: very low flood risk onlyTW16 7PG: very low flood risk onlyTW16 7PH: very low flood risk onlyTW16 7PJ: very low flood risk onlyTW16 7PL: very low flood risk onlyTW16 7PN: very low flood risk onlyTW16 7PP: very low flood risk onlyTW16 7PQ: very low flood risk onlyTW16 7PR: very low flood risk onlyTW16 7PS: very low flood risk onlyTW16 7PT: very low flood risk onlyTW16 7PU: very low flood risk onlyTW16 7PX: very low flood risk onlyTW16 7PY: very low flood risk onlyTW16 7PZ: very low flood risk onlyTW16 7QB: very low flood risk onlyTW16 7QD: very low flood risk onlyTW16 7QE: very low flood risk onlyTW16 7QF: very low flood risk onlyTW16 7QG: very low flood risk onlyTW16 7QH: very low flood risk onlyTW16 7QL: very low flood risk onlyTW16 7QN: very low flood risk onlyTW16 7QP: very low flood risk onlyTW16 7QR: very low flood risk onlyTW16 7QS: very low flood risk onlyTW16 7QW: very low flood risk onlyTW16 7QX: very low flood risk onlyTW16 7QY: very low flood risk onlyTW16 7QZ: very low flood risk onlyTW16 7RA: very low flood risk onlyTW16 7RB: very low flood risk onlyTW16 7RE: very low flood risk onlyTW16 7RF: very low flood risk onlyTW16 7RG: very low flood risk onlyTW16 7RH: very low flood risk onlyTW16 7RL: very low flood risk onlyTW16 7RN: very low flood risk onlyTW16 7RP: very low flood risk onlyTW16 7RQ: very low flood risk onlyTW16 7RR: very low flood risk onlyTW16 7RS: very low flood risk onlyTW16 7RT: very low flood risk onlyTW16 7RU: very low flood risk onlyTW16 7RW: very low flood risk onlyTW16 7RX: very low flood risk onlyTW16 7RY: very low flood risk onlyTW16 7RZ: very low flood risk onlyTW16 7SB: very low flood risk onlyTW16 7SD: very low flood risk onlyTW16 7SE: very low flood risk onlyTW16 7SF: very low flood risk onlyTW16 7SG: very low flood risk onlyTW16 7SH: very low flood risk onlyTW16 7SP: very low flood risk onlyTW16 7SR: very low flood risk onlyTW16 7SX: very low flood risk onlyTW16 7SZ: very low flood risk onlyTW16 7TA: very low flood risk onlyTW16 7TB: very low flood risk onlyTW16 7TD: very low flood risk onlyTW16 7TE: very low flood risk onlyTW16 7TH: very low flood risk onlyTW16 7TL: very low flood risk onlyTW16 7TN: very low flood risk onlyTW16 7TP: very low flood risk onlyTW16 7TR: very low flood risk onlyTW16 7TS: very low flood risk onlyTW16 7TT: very low flood risk onlyTW16 7TU: very low flood risk onlyTW16 7TW: very low flood risk onlyTW16 7TX: very low flood risk onlyTW16 7TY: very low flood risk onlyTW16 7TZ: very low flood risk onlyTW16 7UA: very low flood risk onlyTW16 7UB: very low flood risk onlyTW16 7UH: very low flood risk onlyTW16 5AR: low flood risk at worstTW16 5BA: low flood risk at worstTW16 5BJ: low flood risk at worstTW16 5EH: low flood risk at worstTW16 5PH: low flood risk at worstTW16 5PJ: low flood risk at worstTW16 5PS: low flood risk at worstTW16 5QF: low flood risk at worstTW16 6AA: low flood risk at worstTW16 6AP: low flood risk at worstTW16 6AZ: low flood risk at worstTW16 6BD: low flood risk at worstTW16 6DG: low flood risk at worstTW16 6DL: low flood risk at worstTW16 6DN: low flood risk at worstTW16 6DP: low flood risk at worstTW16 6DR: low flood risk at worstTW16 6EJ: low flood risk at worstTW16 6EP: low flood risk at worstTW16 6EW: low flood risk at worstTW16 6JE: low flood risk at worstTW16 6LA: low flood risk at worstTW16 6LB: low flood risk at worstTW16 6LD: low flood risk at worstTW16 6LF: low flood risk at worstTW16 6LG: low flood risk at worstTW16 6LH: low flood risk at worstTW16 6LJ: low flood risk at worstTW16 6LL: low flood risk at worstTW16 6LN: low flood risk at worstTW16 6LP: low flood risk at worstTW16 6LQ: low flood risk at worstTW16 6LR: low flood risk at worstTW16 6LW: low flood risk at worstTW16 6LY: low flood risk at worstTW16 6NA: low flood risk at worstTW16 6ND: low flood risk at worstTW16 6NE: low flood risk at worstTW16 6NF: low flood risk at worstTW16 6NG: low flood risk at worstTW16 6NT: low flood risk at worstTW16 6NY: low flood risk at worstTW16 6PB: low flood risk at worstTW16 6PH: low flood risk at worstTW16 6PJ: low flood risk at worstTW16 6PQ: low flood risk at worstTW16 6QB: low flood risk at worstTW16 6QG: low flood risk at worstTW16 6QH: low flood risk at worstTW16 6QQ: low flood risk at worstTW16 6RN: low flood risk at worstTW16 7BB: low flood risk at worstTW16 7DT: low flood risk at worstTW16 7DX: low flood risk at worstTW16 7DY: low flood risk at worstTW16 7EB: low flood risk at worstTW16 7EE: low flood risk at worstTW16 7EF: low flood risk at worstTW16 7EH: low flood risk at worstTW16 7EL: low flood risk at worstTW16 7EP: low flood risk at worstTW16 7EY: low flood risk at worstTW16 7EZ: low flood risk at worstTW16 7FD: low flood risk at worstTW16 7FH: low flood risk at worstTW16 7HB: low flood risk at worstTW16 7HD: low flood risk at worstTW16 7HE: low flood risk at worstTW16 7HJ: low flood risk at worstTW16 7HL: low flood risk at worstTW16 7HP: low flood risk at worstTW16 7HQ: low flood risk at worstTW16 7HT: low flood risk at worstTW16 7HW: low flood risk at worstTW16 7HY: low flood risk at worstTW16 7HZ: low flood risk at worstTW16 7JB: low flood risk at worstTW16 7JE: low flood risk at worstTW16 7JF: low flood risk at worstTW16 7JG: low flood risk at worstTW16 7JQ: low flood risk at worstTW16 7LN: low flood risk at worstTW16 7LY: low flood risk at worstTW16 7NA: low flood risk at worstTW16 5PQ: medium flood risk at worstTW16 5QY: medium flood risk at worstTW16 6AJ: medium flood risk at worstTW16 6AU: medium flood risk at worstTW16 6BB: medium flood risk at worstTW16 5LE: high flood riskTW16 5PN: high flood riskTW16 5PP: high flood riskTW16 5PR: high flood riskTW16 5PW: high flood riskTW16 5QP: high flood riskTW16 5QS: high flood riskTW16 6AF: high flood riskTW16 6AG: high flood riskTW16 6AH: high flood riskTW16 6AQ: high flood riskTW16 6AR: high flood riskTW16 6AS: high flood riskTW16 6AT: high flood riskTW16 6AX: high flood riskTW16 6BS: high flood riskTW16 6BT: high flood riskTW16 6BU: high flood riskTW16 6BY: high flood riskTW16 6DA: high flood risk Sunbury-on-ThamesUpper Halliford 6 postcodes at high or medium risk, outlined: this goes to TW16 6BS, the one with most homes and businesses at high risk6 postcodes at high or medium risk Map of every postcode in TW16, by flood risk Of the 538 postcodes in TW16 that ONS places, 20 have a home or business at high risk, 5 are at medium risk at worst, 86 are at low risk at worst, 154 are at very low risk only and 273 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 6 postcodes at high or medium risk. Places named: Sunbury-on-Thames, Upper Halliford. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A316A3050 Sunbury-on-ThamesUpper Halliford
  • A home or business at high risk: 20
  • At medium risk at worst: 5
  • At low risk at worst: 86
  • At very low risk only: 154
  • Not on the at-risk list: 273
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 538 postcodes in TW16 that ONS places, 20 have a home or business at high risk, 5 are at medium risk at worst, 86 are at low risk at worst, 154 are at very low risk only and 273 are not on the Environment Agency's at-risk list.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

The middle of its postcodes: latitude 51.4157, longitude -0.4169. Open this area on OpenStreetMap

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; flood risk: Environment Agency, published 6 July 2026; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

The postcodes at high risk

20 postcodes here have a home or business at high risk. These are the 12 with the most homes and businesses at that risk.

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

TW16 6AT39 at high riskTW16 5PP32 at high riskTW16 6DA31 at high riskTW16 6BY26 at high riskTW16 6BS21 at high riskTW16 6BT21 at high riskTW16 5PR19 at high riskTW16 6AS19 at high riskTW16 5PW16 at high riskTW16 5LE13 at high riskTW16 5QP11 at high riskTW16 6BU11 at high risk

Where the postcodes at high or medium risk lie together

  • 6 postcodes at high or medium risk, outlined on the map. TW16 6BS, is the one with most homes and businesses at high risk.

What broadband can you get in TW16?

Ofcom reports on 514 of the 538 postcodes in TW16. At 443 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit443 of 514
Postcodes where every home can get superfast505 of 514

Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.

Check one address on Ofcom's checker

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

Is TW16 at risk of flooding?

265 of the 538 postcodes in TW16 have a home or business in an area at risk of flooding from rivers or the sea, the Environment Agency says. At those, it puts 340 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 265 of 538 postcodes High: 293Medium: 47Low: 912Very low: 3,220

High: 3.3% or more a year (1 in 30). Medium: 1% to 3.3% a year. Low: 0.1% to 1% a year. Very low: under 0.1% a year (1 in 1,000). Each band is the chance of flooding in any one year.

Homes and businesses in an area at risk of flooding from rivers or the sea, as the Environment Agency counts them, added up over the postcodes. It is for the land, not each building, and leaves out surface water, groundwater and sewers. Each postcode page has its own figures and its flood warning areas.

Source: Environment Agency, Risk of Flooding from Rivers and Sea (postcodes in areas at risk), published 6 July 2026, Open Government Licence v3.0. How we use it

What do homes sell for in TW16?

Homes in TW16 sold for a typical £490,000 in the 12 months to August 2026, across 223 sales, up 1% on the 12 months before, HM Land Registry's figures show.

£490,000 typical price, the 12 months to August 2026
12 months to August 2025
£485,000
12 months to August 2026
£490,000

▲ up 1% on the 12 months before

Detached£735,000 48 sales
Semi-detached£525,000 59 sales
Terraced£460,000 65 sales
Flat or maisonette£275,000 51 sales

Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

Postcodes in TW16

Pick a sector, then a postcode. A sector is the district plus the next digit.

TW16 5145 postcodesTW16 6172 postcodesTW16 7216 postcodesTW16 95 postcodes
UK postcode format explained

Places in TW16

Towns and villages with postcodes in TW16, and how many each has here.

Sunbury-on-Thames postcodes,518Ashford Common postcodes,19Upper Halliford postcodes,1

Who covers TW16

How many of the district's postcodes in use fall under each council, constituency and police force area.

Councils

What council am I in?

Constituencies

  • Spelthorne535
  • Esher and Walton3

Police force areas

  • Surrey538

Next to TW16

TW15 postcode district TW17 postcode district All TW districts Sunbury-on-Thames postcodes

"Next to" is by number: the districts before and after TW16 in the TW area.

Check a postcode

Something wrong on this page? Report an error and we will check it against the source.