TW3 4 postcode sector in the TW3 district

TW3 4 is a sector of the TW3 district: every postcode that starts TW3 4. It has 152 postcodes in use, 5 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 TW3 4 sector, by flood risk

Map of every postcode in the TW3 4 sector, by flood risk Of the 152 postcodes in the TW3 4 sector that ONS places, 152 are not on the Environment Agency's at-risk list. Places named: Heston East, Hounslow Central. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A4 TW3 4AA: not on the flood risk listTW3 4AB: not on the flood risk listTW3 4AD: not on the flood risk listTW3 4AE: not on the flood risk listTW3 4AF: not on the flood risk listTW3 4AG: not on the flood risk listTW3 4AH: not on the flood risk listTW3 4AJ: not on the flood risk listTW3 4AL: not on the flood risk listTW3 4AN: not on the flood risk listTW3 4AP: not on the flood risk listTW3 4AQ: not on the flood risk listTW3 4AR: not on the flood risk listTW3 4AS: not on the flood risk listTW3 4AW: not on the flood risk listTW3 4AX: not on the flood risk listTW3 4AY: not on the flood risk listTW3 4AZ: not on the flood risk listTW3 4BB: not on the flood risk listTW3 4BD: not on the flood risk listTW3 4BE: not on the flood risk listTW3 4BF: not on the flood risk listTW3 4BG: not on the flood risk listTW3 4BJ: not on the flood risk listTW3 4BL: not on the flood risk listTW3 4BN: not on the flood risk listTW3 4BP: not on the flood risk listTW3 4BQ: not on the flood risk listTW3 4BS: not on the flood risk listTW3 4BT: not on the flood risk listTW3 4BU: not on the flood risk listTW3 4BW: not on the flood risk listTW3 4BX: not on the flood risk listTW3 4BZ: not on the flood risk listTW3 4DA: not on the flood risk listTW3 4DB: not on the flood risk listTW3 4DD: not on the flood risk listTW3 4DE: not on the flood risk listTW3 4DF: not on the flood risk listTW3 4DG: not on the flood risk listTW3 4DH: not on the flood risk listTW3 4DJ: not on the flood risk listTW3 4DL: not on the flood risk listTW3 4DN: not on the flood risk listTW3 4DP: not on the flood risk listTW3 4DR: not on the flood risk listTW3 4DS: not on the flood risk listTW3 4DT: not on the flood risk listTW3 4DU: not on the flood risk listTW3 4DX: not on the flood risk listTW3 4DY: not on the flood risk listTW3 4DZ: not on the flood risk listTW3 4EA: not on the flood risk listTW3 4EB: not on the flood risk listTW3 4EJ: not on the flood risk listTW3 4EN: not on the flood risk listTW3 4EP: not on the flood risk listTW3 4ER: not on the flood risk listTW3 4ES: not on the flood risk listTW3 4ET: not on the flood risk listTW3 4EU: not on the flood risk listTW3 4EW: not on the flood risk listTW3 4EX: not on the flood risk listTW3 4EY: not on the flood risk listTW3 4EZ: not on the flood risk listTW3 4FA: not on the flood risk listTW3 4FB: not on the flood risk listTW3 4FD: not on the flood risk listTW3 4FE: not on the flood risk listTW3 4FF: not on the flood risk listTW3 4FG: not on the flood risk listTW3 4FH: not on the flood risk listTW3 4FJ: not on the flood risk listTW3 4FL: not on the flood risk listTW3 4FN: not on the flood risk listTW3 4FP: not on the flood risk listTW3 4FS: not on the flood risk listTW3 4FT: not on the flood risk listTW3 4FU: not on the flood risk listTW3 4FX: not on the flood risk listTW3 4FZ: not on the flood risk listTW3 4GB: not on the flood risk listTW3 4GD: not on the flood risk listTW3 4GE: not on the flood risk listTW3 4GF: not on the flood risk listTW3 4GH: not on the flood risk listTW3 4GP: not on the flood risk listTW3 4HA: not on the flood risk listTW3 4HB: not on the flood risk listTW3 4HE: not on the flood risk listTW3 4HN: not on the flood risk listTW3 4HP: not on the flood risk listTW3 4HR: not on the flood risk listTW3 4HS: not on the flood risk listTW3 4HT: not on the flood risk listTW3 4HU: not on the flood risk listTW3 4HW: not on the flood risk listTW3 4HX: not on the flood risk listTW3 4HY: not on the flood risk listTW3 4JD: not on the flood risk listTW3 4JE: not on the flood risk listTW3 4JF: not on the flood risk listTW3 4JG: not on the flood risk listTW3 4JJ: not on the flood risk listTW3 4JL: not on the flood risk listTW3 4JN: not on the flood risk listTW3 4JP: not on the flood risk listTW3 4JR: not on the flood risk listTW3 4JS: not on the flood risk listTW3 4JW: not on the flood risk listTW3 4JX: not on the flood risk listTW3 4JZ: not on the flood risk listTW3 4LA: not on the flood risk listTW3 4LB: not on the flood risk listTW3 4LD: not on the flood risk listTW3 4LE: not on the flood risk listTW3 4LF: not on the flood risk listTW3 4LG: not on the flood risk listTW3 4LH: not on the flood risk listTW3 4LJ: not on the flood risk listTW3 4LL: not on the flood risk listTW3 4LN: not on the flood risk listTW3 4LP: not on the flood risk listTW3 4LQ: not on the flood risk listTW3 4LR: not on the flood risk listTW3 4LS: not on the flood risk listTW3 4LT: not on the flood risk listTW3 4LU: not on the flood risk listTW3 4LW: not on the flood risk listTW3 4LX: not on the flood risk listTW3 4LY: not on the flood risk listTW3 4LZ: not on the flood risk listTW3 4NA: not on the flood risk listTW3 4NB: not on the flood risk listTW3 4ND: not on the flood risk listTW3 4NE: not on the flood risk listTW3 4NF: not on the flood risk listTW3 4NG: not on the flood risk listTW3 4NH: not on the flood risk listTW3 4NJ: not on the flood risk listTW3 4NL: not on the flood risk listTW3 4NN: not on the flood risk listTW3 4NW: not on the flood risk listTW3 4PJ: not on the flood risk list Heston EastHounslow Central Map of every postcode in the TW3 4 sector, by flood risk Of the 152 postcodes in the TW3 4 sector that ONS places, 152 are not on the Environment Agency's at-risk list. Places named: Heston East, Hounslow Central. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Heston EastHounslow Central
  • A home or business at high risk: 0
  • At medium risk at worst: 0
  • At low risk at worst: 0
  • At very low risk only: 0
  • Not on the at-risk list: 152

Of the 152 postcodes in the TW3 4 sector that ONS places, 152 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. 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

What do homes sell for in TW3 4?

Homes in TW3 4 sold for a typical £493,750 in the 12 months to August 2026, across 24 sales, down 1.2% on the 12 months before, HM Land Registry's figures show.

£493,750 typical price, the 12 months to August 2026
£500,000 12 months to August 2025
▼ down 1.2% on the 12 months before
  • Detached 3 sales, too few to price
  • Semi-detached £562,500 6 sales
  • Terraced £477,000 12 sales
  • Flat or maisonette 3 sales, too few to price

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 TW3 4. 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 TW3 4

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.

TW3 4AATW3 4ABTW3 4ADTW3 4AETW3 4AFTW3 4AGTW3 4AHTW3 4AJTW3 4ALTW3 4ANTW3 4APTW3 4AQTW3 4ARTW3 4ASTW3 4AWTW3 4AXTW3 4AYTW3 4AZTW3 4BBTW3 4BDTW3 4BETW3 4BFTW3 4BGTW3 4BHTW3 4BJTW3 4BLTW3 4BNTW3 4BPTW3 4BQTW3 4BSTW3 4BTTW3 4BUTW3 4BWTW3 4BXTW3 4BZTW3 4DATW3 4DBTW3 4DDTW3 4DETW3 4DFTW3 4DGTW3 4DHTW3 4DJTW3 4DLTW3 4DNTW3 4DPTW3 4DRTW3 4DSTW3 4DTTW3 4DUTW3 4DXTW3 4DYTW3 4DZTW3 4EATW3 4EBTW3 4EJTW3 4ENTW3 4EPTW3 4ERTW3 4ESTW3 4ETTW3 4EUTW3 4EWTW3 4EXTW3 4EYTW3 4EZTW3 4FATW3 4FBTW3 4FDTW3 4FETW3 4FFTW3 4FGTW3 4FHTW3 4FJTW3 4FLTW3 4FNTW3 4FPTW3 4FSTW3 4FTTW3 4FUTW3 4FWTW3 4FXTW3 4FZTW3 4GBTW3 4GDTW3 4GETW3 4GFTW3 4GHTW3 4GJTW3 4GPTW3 4HATW3 4HBTW3 4HDTW3 4HETW3 4HFTW3 4HNTW3 4HPTW3 4HRTW3 4HSTW3 4HTTW3 4HUTW3 4HWTW3 4HXTW3 4HYTW3 4JDTW3 4JETW3 4JFTW3 4JGTW3 4JJTW3 4JLTW3 4JNTW3 4JPTW3 4JRTW3 4JSTW3 4JUTW3 4JWTW3 4JXTW3 4JZTW3 4LATW3 4LBTW3 4LDTW3 4LETW3 4LFTW3 4LGTW3 4LHTW3 4LJTW3 4LLTW3 4LNTW3 4LPTW3 4LQTW3 4LRTW3 4LSTW3 4LTTW3 4LUTW3 4LWTW3 4LXTW3 4LYTW3 4LZTW3 4NATW3 4NBTW3 4NDTW3 4NETW3 4NFTW3 4NGTW3 4NHTW3 4NJTW3 4NLTW3 4NNTW3 4NWTW3 4PJTW3 4WDTW3 4WR

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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