TW3 3 postcode sector in the TW3 district

TW3 3 is a sector of the TW3 district: every postcode that starts TW3 3. It has 196 postcodes in use, 2 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 3 sector, by flood risk

Map of every postcode in the TW3 3 sector, by flood risk Of the 196 postcodes in the TW3 3 sector that ONS places, 196 are not on the Environment Agency's at-risk list. Places named: Hounslow Heath, Hounslow West. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A4 TW3 3AA: not on the flood risk listTW3 3AB: not on the flood risk listTW3 3AD: not on the flood risk listTW3 3AE: not on the flood risk listTW3 3AF: not on the flood risk listTW3 3AG: not on the flood risk listTW3 3AH: not on the flood risk listTW3 3AJ: not on the flood risk listTW3 3AL: not on the flood risk listTW3 3AN: not on the flood risk listTW3 3AP: not on the flood risk listTW3 3AQ: not on the flood risk listTW3 3AR: not on the flood risk listTW3 3AS: not on the flood risk listTW3 3AT: not on the flood risk listTW3 3AW: not on the flood risk listTW3 3BB: not on the flood risk listTW3 3BD: not on the flood risk listTW3 3BJ: not on the flood risk listTW3 3BN: not on the flood risk listTW3 3BP: not on the flood risk listTW3 3BS: not on the flood risk listTW3 3BT: not on the flood risk listTW3 3BU: not on the flood risk listTW3 3BW: not on the flood risk listTW3 3DA: not on the flood risk listTW3 3DB: not on the flood risk listTW3 3DD: not on the flood risk listTW3 3DE: not on the flood risk listTW3 3DF: not on the flood risk listTW3 3DG: not on the flood risk listTW3 3DH: not on the flood risk listTW3 3DL: not on the flood risk listTW3 3DQ: not on the flood risk listTW3 3DU: not on the flood risk listTW3 3DW: not on the flood risk listTW3 3EB: not on the flood risk listTW3 3ED: not on the flood risk listTW3 3EH: not on the flood risk listTW3 3EJ: not on the flood risk listTW3 3EL: not on the flood risk listTW3 3EN: not on the flood risk listTW3 3EP: not on the flood risk listTW3 3EQ: not on the flood risk listTW3 3ER: not on the flood risk listTW3 3ES: not on the flood risk listTW3 3ET: not on the flood risk listTW3 3EW: not on the flood risk listTW3 3EX: not on the flood risk listTW3 3EY: not on the flood risk listTW3 3FF: not on the flood risk listTW3 3FG: not on the flood risk listTW3 3FH: not on the flood risk listTW3 3FJ: not on the flood risk listTW3 3FL: not on the flood risk listTW3 3FN: not on the flood risk listTW3 3FP: not on the flood risk listTW3 3FQ: not on the flood risk listTW3 3FR: not on the flood risk listTW3 3FS: not on the flood risk listTW3 3FT: not on the flood risk listTW3 3FU: not on the flood risk listTW3 3FW: not on the flood risk listTW3 3FX: not on the flood risk listTW3 3FY: not on the flood risk listTW3 3FZ: not on the flood risk listTW3 3GH: not on the flood risk listTW3 3GL: not on the flood risk listTW3 3GN: not on the flood risk listTW3 3GP: not on the flood risk listTW3 3GQ: not on the flood risk listTW3 3HH: not on the flood risk listTW3 3HP: not on the flood risk listTW3 3HW: not on the flood risk listTW3 3HY: not on the flood risk listTW3 3JB: not on the flood risk listTW3 3JJ: not on the flood risk listTW3 3JR: not on the flood risk listTW3 3JS: not on the flood risk listTW3 3JT: not on the flood risk listTW3 3JW: not on the flood risk listTW3 3JY: not on the flood risk listTW3 3JZ: not on the flood risk listTW3 3LF: not on the flood risk listTW3 3LH: not on the flood risk listTW3 3LJ: not on the flood risk listTW3 3LL: not on the flood risk listTW3 3LQ: not on the flood risk listTW3 3LR: not on the flood risk listTW3 3LS: not on the flood risk listTW3 3LU: not on the flood risk listTW3 3LX: not on the flood risk listTW3 3LZ: not on the flood risk listTW3 3NE: not on the flood risk listTW3 3NN: not on the flood risk listTW3 3NR: not on the flood risk listTW3 3NT: not on the flood risk listTW3 3NU: not on the flood risk listTW3 3NX: not on the flood risk listTW3 3PB: not on the flood risk listTW3 3PE: not on the flood risk listTW3 3PR: not on the flood risk listTW3 3PT: not on the flood risk listTW3 3PU: not on the flood risk listTW3 3PW: not on the flood risk listTW3 3PX: not on the flood risk listTW3 3PY: not on the flood risk listTW3 3PZ: not on the flood risk listTW3 3QB: not on the flood risk listTW3 3QD: not on the flood risk listTW3 3QE: not on the flood risk listTW3 3QF: not on the flood risk listTW3 3QG: not on the flood risk listTW3 3QH: not on the flood risk listTW3 3QJ: not on the flood risk listTW3 3QL: not on the flood risk listTW3 3QN: not on the flood risk listTW3 3QP: not on the flood risk listTW3 3QQ: not on the flood risk listTW3 3QR: not on the flood risk listTW3 3QS: not on the flood risk listTW3 3QT: not on the flood risk listTW3 3QU: not on the flood risk listTW3 3QW: not on the flood risk listTW3 3QX: not on the flood risk listTW3 3QY: not on the flood risk listTW3 3QZ: not on the flood risk listTW3 3RA: not on the flood risk listTW3 3RB: not on the flood risk listTW3 3RD: not on the flood risk listTW3 3RF: not on the flood risk listTW3 3RG: not on the flood risk listTW3 3RH: not on the flood risk listTW3 3RJ: not on the flood risk listTW3 3RL: not on the flood risk listTW3 3RN: not on the flood risk listTW3 3RP: not on the flood risk listTW3 3RQ: not on the flood risk listTW3 3RR: not on the flood risk listTW3 3RS: not on the flood risk listTW3 3RT: not on the flood risk listTW3 3RU: not on the flood risk listTW3 3RW: not on the flood risk listTW3 3RX: not on the flood risk listTW3 3RY: not on the flood risk listTW3 3RZ: not on the flood risk listTW3 3SA: not on the flood risk listTW3 3SB: not on the flood risk listTW3 3SD: not on the flood risk listTW3 3SE: not on the flood risk listTW3 3SF: not on the flood risk listTW3 3SG: not on the flood risk listTW3 3SH: not on the flood risk listTW3 3SJ: not on the flood risk listTW3 3SL: not on the flood risk listTW3 3SN: not on the flood risk listTW3 3SQ: not on the flood risk listTW3 3ST: not on the flood risk listTW3 3SU: not on the flood risk listTW3 3SW: not on the flood risk listTW3 3SX: not on the flood risk listTW3 3SY: not on the flood risk listTW3 3TD: not on the flood risk listTW3 3TE: not on the flood risk listTW3 3TF: not on the flood risk listTW3 3TG: not on the flood risk listTW3 3TJ: not on the flood risk listTW3 3TL: not on the flood risk listTW3 3TN: not on the flood risk listTW3 3TQ: not on the flood risk listTW3 3TR: not on the flood risk listTW3 3TS: not on the flood risk listTW3 3TT: not on the flood risk listTW3 3TU: not on the flood risk listTW3 3TX: not on the flood risk listTW3 3TY: not on the flood risk listTW3 3UA: not on the flood risk listTW3 3UD: not on the flood risk listTW3 3UE: not on the flood risk listTW3 3UH: not on the flood risk listTW3 3UJ: not on the flood risk listTW3 3UL: not on the flood risk listTW3 3UN: not on the flood risk listTW3 3UP: not on the flood risk listTW3 3UQ: not on the flood risk listTW3 3UW: not on the flood risk listTW3 3UZ: not on the flood risk list Hounslow HeathHounslow West Map of every postcode in the TW3 3 sector, by flood risk Of the 196 postcodes in the TW3 3 sector that ONS places, 196 are not on the Environment Agency's at-risk list. Places named: Hounslow Heath, Hounslow West. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Hounslow HeathHounslow West
  • 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: 196

Of the 196 postcodes in the TW3 3 sector that ONS places, 196 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 3?

Homes in TW3 3 sold for a typical £371,500 in the 12 months to August 2026, across 40 sales, up 17.9% on the 12 months before, HM Land Registry's figures show.

£371,500 typical price, the 12 months to August 2026
£315,000 12 months to August 2025
▲ up 17.9% on the 12 months before
  • Semi-detached £544,000 16 sales
  • Terraced £485,500 6 sales
  • Flat or maisonette £246,500 18 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 TW3 3. 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 3

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 3AATW3 3ABTW3 3ADTW3 3AETW3 3AFTW3 3AGTW3 3AHTW3 3AJTW3 3ALTW3 3ANTW3 3APTW3 3AQTW3 3ARTW3 3ASTW3 3ATTW3 3AWTW3 3BBTW3 3BDTW3 3BJTW3 3BNTW3 3BPTW3 3BSTW3 3BTTW3 3BUTW3 3BWTW3 3DATW3 3DBTW3 3DDTW3 3DETW3 3DFTW3 3DGTW3 3DHTW3 3DLTW3 3DQTW3 3DUTW3 3DWTW3 3EBTW3 3EDTW3 3EHTW3 3EJTW3 3ELTW3 3ENTW3 3EPTW3 3EQTW3 3ERTW3 3ESTW3 3ETTW3 3EWTW3 3EXTW3 3EYTW3 3FFTW3 3FGTW3 3FHTW3 3FJTW3 3FLTW3 3FNTW3 3FPTW3 3FQTW3 3FRTW3 3FSTW3 3FTTW3 3FUTW3 3FWTW3 3FXTW3 3FYTW3 3FZTW3 3GBTW3 3GDTW3 3GETW3 3GFTW3 3GGTW3 3GHTW3 3GLTW3 3GNTW3 3GPTW3 3GQTW3 3HHTW3 3HJTW3 3HPTW3 3HWTW3 3HYTW3 3JBTW3 3JJTW3 3JRTW3 3JSTW3 3JTTW3 3JWTW3 3JYTW3 3JZTW3 3LFTW3 3LHTW3 3LJTW3 3LLTW3 3LNTW3 3LQTW3 3LRTW3 3LSTW3 3LUTW3 3LXTW3 3LZTW3 3NETW3 3NNTW3 3NRTW3 3NTTW3 3NUTW3 3NXTW3 3PBTW3 3PETW3 3PJTW3 3PRTW3 3PTTW3 3PUTW3 3PWTW3 3PXTW3 3PYTW3 3PZTW3 3QBTW3 3QDTW3 3QETW3 3QFTW3 3QGTW3 3QHTW3 3QJTW3 3QLTW3 3QNTW3 3QPTW3 3QQTW3 3QRTW3 3QSTW3 3QTTW3 3QUTW3 3QWTW3 3QXTW3 3QYTW3 3QZTW3 3RATW3 3RBTW3 3RDTW3 3RETW3 3RFTW3 3RGTW3 3RHTW3 3RJTW3 3RLTW3 3RNTW3 3RPTW3 3RQTW3 3RRTW3 3RSTW3 3RTTW3 3RUTW3 3RWTW3 3RXTW3 3RYTW3 3RZTW3 3SATW3 3SBTW3 3SDTW3 3SETW3 3SFTW3 3SGTW3 3SHTW3 3SJTW3 3SLTW3 3SNTW3 3SQTW3 3STTW3 3SUTW3 3SWTW3 3SXTW3 3SYTW3 3TDTW3 3TETW3 3TFTW3 3TGTW3 3TJTW3 3TLTW3 3TNTW3 3TQTW3 3TRTW3 3TSTW3 3TTTW3 3TUTW3 3TXTW3 3TYTW3 3UATW3 3UDTW3 3UETW3 3UHTW3 3UJTW3 3ULTW3 3UNTW3 3UPTW3 3UQTW3 3UWTW3 3UZ

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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