TW9 1 postcode sector in the TW9 district

TW9 1 is a sector of the TW9 district: every postcode that starts TW9 1. It has 160 postcodes in use, 19 of them large-user postcodes. A large-user postcode is one Royal Mail gives to a single address that gets a lot of mail.

Not sure what a sector is? UK postcode format explained.

Every postcode in the TW9 1 sector, by flood risk

Map of every postcode in the TW9 1 sector, by flood risk Of the 160 postcodes in the TW9 1 sector that ONS places, 7 have a home or business at high risk, 7 are at low risk at worst and 146 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 7 postcodes at high or medium risk. Places named: South Richmond, North Richmond. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A316 TW9 1AA: not on the flood risk listTW9 1AB: not on the flood risk listTW9 1AD: not on the flood risk listTW9 1AE: not on the flood risk listTW9 1AF: not on the flood risk listTW9 1AG: not on the flood risk listTW9 1AH: not on the flood risk listTW9 1AJ: not on the flood risk listTW9 1AP: not on the flood risk listTW9 1AQ: not on the flood risk listTW9 1AS: not on the flood risk listTW9 1AU: not on the flood risk listTW9 1AW: not on the flood risk listTW9 1AZ: not on the flood risk listTW9 1BE: not on the flood risk listTW9 1BF: not on the flood risk listTW9 1BN: not on the flood risk listTW9 1BP: not on the flood risk listTW9 1DH: not on the flood risk listTW9 1DJ: not on the flood risk listTW9 1DL: not on the flood risk listTW9 1DN: not on the flood risk listTW9 1DT: not on the flood risk listTW9 1DX: not on the flood risk listTW9 1DY: not on the flood risk listTW9 1DZ: not on the flood risk listTW9 1EA: not on the flood risk listTW9 1EB: not on the flood risk listTW9 1ED: not on the flood risk listTW9 1EE: not on the flood risk listTW9 1EG: not on the flood risk listTW9 1EJ: not on the flood risk listTW9 1EL: not on the flood risk listTW9 1EN: not on the flood risk listTW9 1EU: not on the flood risk listTW9 1EW: not on the flood risk listTW9 1FH: not on the flood risk listTW9 1HE: not on the flood risk listTW9 1HF: not on the flood risk listTW9 1HG: not on the flood risk listTW9 1HH: not on the flood risk listTW9 1HJ: not on the flood risk listTW9 1HP: not on the flood risk listTW9 1HY: not on the flood risk listTW9 1JL: not on the flood risk listTW9 1JS: not on the flood risk listTW9 1JW: not on the flood risk listTW9 1JY: not on the flood risk listTW9 1LL: not on the flood risk listTW9 1LN: not on the flood risk listTW9 1LW: not on the flood risk listTW9 1LX: not on the flood risk listTW9 1LY: not on the flood risk listTW9 1LZ: not on the flood risk listTW9 1NB: not on the flood risk listTW9 1ND: not on the flood risk listTW9 1NH: not on the flood risk listTW9 1NQ: not on the flood risk listTW9 1NX: not on the flood risk listTW9 1NY: not on the flood risk listTW9 1NZ: not on the flood risk listTW9 1PA: not on the flood risk listTW9 1PB: not on the flood risk listTW9 1PD: not on the flood risk listTW9 1PE: not on the flood risk listTW9 1PF: not on the flood risk listTW9 1PL: not on the flood risk listTW9 1PU: not on the flood risk listTW9 1PX: not on the flood risk listTW9 1QF: not on the flood risk listTW9 1QG: not on the flood risk listTW9 1QH: not on the flood risk listTW9 1QJ: not on the flood risk listTW9 1QQ: not on the flood risk listTW9 1QS: not on the flood risk listTW9 1QW: not on the flood risk listTW9 1RB: not on the flood risk listTW9 1RE: not on the flood risk listTW9 1RJ: not on the flood risk listTW9 1RR: not on the flood risk listTW9 1RU: not on the flood risk listTW9 1RW: not on the flood risk listTW9 1RX: not on the flood risk listTW9 1SA: not on the flood risk listTW9 1SE: not on the flood risk listTW9 1SL: not on the flood risk listTW9 1SN: not on the flood risk listTW9 1SQ: not on the flood risk listTW9 1SX: not on the flood risk listTW9 1TF: not on the flood risk listTW9 1TN: not on the flood risk listTW9 1TP: not on the flood risk listTW9 1TW: not on the flood risk listTW9 1UA: not on the flood risk listTW9 1UB: not on the flood risk listTW9 1UD: not on the flood risk listTW9 1UF: not on the flood risk listTW9 1UH: not on the flood risk listTW9 1UJ: not on the flood risk listTW9 1UL: not on the flood risk listTW9 1UN: not on the flood risk listTW9 1UP: not on the flood risk listTW9 1UR: not on the flood risk listTW9 1UU: not on the flood risk listTW9 1UW: not on the flood risk listTW9 1UX: not on the flood risk listTW9 1UY: not on the flood risk listTW9 1UZ: not on the flood risk listTW9 1XA: not on the flood risk listTW9 1XB: not on the flood risk listTW9 1XD: not on the flood risk listTW9 1XF: not on the flood risk listTW9 1XH: not on the flood risk listTW9 1XJ: not on the flood risk listTW9 1XL: not on the flood risk listTW9 1XN: not on the flood risk listTW9 1XP: not on the flood risk listTW9 1XR: not on the flood risk listTW9 1XS: not on the flood risk listTW9 1XT: not on the flood risk listTW9 1XU: not on the flood risk listTW9 1XW: not on the flood risk listTW9 1XX: not on the flood risk listTW9 1XY: not on the flood risk listTW9 1XZ: not on the flood risk listTW9 1YA: not on the flood risk listTW9 1YB: not on the flood risk listTW9 1YD: not on the flood risk listTW9 1YE: not on the flood risk listTW9 1YH: not on the flood risk listTW9 1YJ: not on the flood risk listTW9 1YS: not on the flood risk listTW9 1YT: not on the flood risk listTW9 1YU: not on the flood risk listTW9 1EH: low flood risk at worstTW9 1NL: low flood risk at worstTW9 1NN: low flood risk at worstTW9 1NP: low flood risk at worstTW9 1NW: low flood risk at worstTW9 1PG: low flood risk at worstTW9 1TQ: low flood risk at worstTW9 1NR: high flood riskTW9 1NS: high flood riskTW9 1NT: high flood riskTW9 1NU: high flood riskTW9 1PQ: high flood riskTW9 1TH: high flood riskTW9 1TJ: high flood risk South RichmondNorth Richmond 7 postcodes at high or medium risk, outlined: this goes to TW9 1TJ, the one with most homes and businesses at high risk7 postcodes at high or medium risk Map of every postcode in the TW9 1 sector, by flood risk Of the 160 postcodes in the TW9 1 sector that ONS places, 7 have a home or business at high risk, 7 are at low risk at worst and 146 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 7 postcodes at high or medium risk. Places named: South Richmond, North Richmond. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A316 South RichmondNorth Richmond
  • A home or business at high risk: 7
  • At medium risk at worst: 0
  • At low risk at worst: 7
  • At very low risk only: 0
  • Not on the at-risk list: 146
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 160 postcodes in the TW9 1 sector that ONS places, 7 have a home or business at high risk, 7 are at low risk at worst and 146 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. Names in italics are council wards: we hold no town or village names here.

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

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

TW9 1TJ11 at high riskTW9 1NS3 at high riskTW9 1TH2 at high riskTW9 1NU1 at high riskTW9 1NR1 at high riskTW9 1NT1 at high riskTW9 1PQ1 at high risk

Where the postcodes at high or medium risk lie together

  • 7 postcodes at high or medium risk, outlined on the map. TW9 1TJ, is the one with most homes and businesses at high risk.

What do homes sell for in TW9 1?

Homes in TW9 1 sold for a typical £644,700 in the 12 months to August 2026, across 51 sales, up 0.7% on the 12 months before, HM Land Registry's figures show.

£644,700 typical price, the 12 months to August 2026
£640,000 12 months to August 2025
▲ up 0.7% on the 12 months before
  • Semi-detached £1,421,000 10 sales
  • Terraced £1,027,500 8 sales
  • Flat or maisonette £575,000 33 sales

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value at the postcodes that start TW9 1. A typical price is the median, the middle sale, given from 5 sales or more.

How we work this out: house prices by postcode

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 TW9 1

Pick a postcode to see its council and MP, broadband, flood risk, what homes sell for, council tax, the nearest schools and stations, and crime around it.

TW9 1AATW9 1ABTW9 1ADTW9 1AETW9 1AFTW9 1AGTW9 1AHTW9 1AJTW9 1APTW9 1AQTW9 1ASTW9 1AUTW9 1AWTW9 1AXTW9 1AYTW9 1AZTW9 1BBTW9 1BETW9 1BFTW9 1BNTW9 1BPTW9 1DHTW9 1DJTW9 1DLTW9 1DNTW9 1DTTW9 1DXTW9 1DYTW9 1DZTW9 1EATW9 1EBTW9 1EDTW9 1EETW9 1EGTW9 1EHTW9 1EJTW9 1ELTW9 1ENTW9 1EPTW9 1EUTW9 1EWTW9 1FHTW9 1HETW9 1HFTW9 1HGTW9 1HHTW9 1HJTW9 1HPTW9 1HUTW9 1HYTW9 1JLTW9 1JSTW9 1JUTW9 1JWTW9 1JYTW9 1LLTW9 1LNTW9 1LWTW9 1LXTW9 1LYTW9 1LZTW9 1NBTW9 1NDTW9 1NHTW9 1NLTW9 1NNTW9 1NPTW9 1NQTW9 1NRTW9 1NSTW9 1NTTW9 1NUTW9 1NWTW9 1NXTW9 1NYTW9 1NZTW9 1PATW9 1PBTW9 1PDTW9 1PETW9 1PFTW9 1PGTW9 1PLTW9 1PQTW9 1PUTW9 1PXTW9 1QDTW9 1QFTW9 1QGTW9 1QHTW9 1QJTW9 1QLTW9 1QQTW9 1QSTW9 1QWTW9 1RBTW9 1RETW9 1RGTW9 1RJTW9 1RRTW9 1RUTW9 1RWTW9 1RXTW9 1SATW9 1SETW9 1SLTW9 1SNTW9 1SQTW9 1SXTW9 1TFTW9 1TGTW9 1THTW9 1TJTW9 1TNTW9 1TPTW9 1TQTW9 1TWTW9 1UATW9 1UBTW9 1UDTW9 1UFTW9 1UHTW9 1UJTW9 1ULTW9 1UNTW9 1UPTW9 1URTW9 1UUTW9 1UWTW9 1UXTW9 1UYTW9 1UZTW9 1WJTW9 1XATW9 1XBTW9 1XDTW9 1XETW9 1XFTW9 1XHTW9 1XJTW9 1XLTW9 1XNTW9 1XPTW9 1XRTW9 1XSTW9 1XTTW9 1XUTW9 1XWTW9 1XXTW9 1XYTW9 1XZTW9 1YATW9 1YBTW9 1YDTW9 1YETW9 1YHTW9 1YJTW9 1YSTW9 1YTTW9 1YU

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed. See all our data sources

What council am I in? The council, borough or local authority for a postcode, and the county council where there is one. What ward am I in? The ward for a postcode, with its council, constituency and parish.

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