TW4 5 postcode sector in the TW4 district

TW4 5 is a sector of the TW4 district: every postcode that starts TW4 5. It has 165 postcodes in use, 4 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 TW4 5 sector, and which are new since 2020

Map of every postcode in the TW4 5 sector, by new since 2020 Of the 165 postcodes in the TW4 5 sector that ONS places, 6 are new since 2020 and 159 were in use before 2020. 2 postcodes lie beyond the edge and are listed under the map. Places named: Hounslow Heath, Heathfield. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A315 TW4 5AA: before 2020TW4 5AB: before 2020TW4 5AD: before 2020TW4 5AE: before 2020TW4 5AF: before 2020TW4 5AH: before 2020TW4 5AJ: before 2020TW4 5AL: before 2020TW4 5AN: before 2020TW4 5AR: before 2020TW4 5AT: before 2020TW4 5AU: before 2020TW4 5AW: before 2020TW4 5AY: before 2020TW4 5AZ: before 2020TW4 5BA: before 2020TW4 5BB: before 2020TW4 5BD: before 2020TW4 5BF: before 2020TW4 5BG: before 2020TW4 5BH: before 2020TW4 5BJ: before 2020TW4 5BL: before 2020TW4 5BN: before 2020TW4 5BP: before 2020TW4 5BQ: before 2020TW4 5BS: before 2020TW4 5BT: before 2020TW4 5BU: before 2020TW4 5BW: before 2020TW4 5BX: before 2020TW4 5DB: before 2020TW4 5DD: before 2020TW4 5DE: before 2020TW4 5DF: before 2020TW4 5DG: before 2020TW4 5DJ: before 2020TW4 5DL: before 2020TW4 5DN: before 2020TW4 5DQ: before 2020TW4 5DR: before 2020TW4 5DZ: before 2020TW4 5EA: before 2020TW4 5EB: before 2020TW4 5ED: before 2020TW4 5EE: before 2020TW4 5EF: before 2020TW4 5EG: before 2020TW4 5EH: before 2020TW4 5EJ: before 2020TW4 5EL: before 2020TW4 5EN: before 2020TW4 5EP: before 2020TW4 5EQ: before 2020TW4 5ER: before 2020TW4 5EU: before 2020TW4 5EW: before 2020TW4 5EX: before 2020TW4 5EY: before 2020TW4 5EZ: before 2020TW4 5HA: before 2020TW4 5HF: before 2020TW4 5HG: before 2020TW4 5HH: before 2020TW4 5HJ: before 2020TW4 5HL: before 2020TW4 5HN: before 2020TW4 5HP: before 2020TW4 5HQ: before 2020TW4 5HS: before 2020TW4 5HT: before 2020TW4 5HU: before 2020TW4 5HW: before 2020TW4 5HX: before 2020TW4 5HY: before 2020TW4 5HZ: before 2020TW4 5JB: before 2020TW4 5JD: before 2020TW4 5JE: before 2020TW4 5JF: before 2020TW4 5JG: before 2020TW4 5JH: before 2020TW4 5JJ: before 2020TW4 5JL: before 2020TW4 5JP: before 2020TW4 5JQ: before 2020TW4 5JR: before 2020TW4 5JT: before 2020TW4 5JU: before 2020TW4 5JW: before 2020TW4 5JX: before 2020TW4 5JY: before 2020TW4 5JZ: before 2020TW4 5LA: before 2020TW4 5LB: before 2020TW4 5LD: before 2020TW4 5LE: before 2020TW4 5LF: before 2020TW4 5LG: before 2020TW4 5LH: before 2020TW4 5LJ: before 2020TW4 5LL: before 2020TW4 5LN: before 2020TW4 5LP: before 2020TW4 5LQ: before 2020TW4 5LR: before 2020TW4 5LS: before 2020TW4 5LU: before 2020TW4 5LW: before 2020TW4 5LX: before 2020TW4 5LY: before 2020TW4 5LZ: before 2020TW4 5NA: before 2020TW4 5NB: before 2020TW4 5NG: before 2020TW4 5NJ: before 2020TW4 5NL: before 2020TW4 5NN: before 2020TW4 5NP: before 2020TW4 5NQ: before 2020TW4 5NR: before 2020TW4 5NS: before 2020TW4 5NT: before 2020TW4 5NU: before 2020TW4 5NW: before 2020TW4 5NY: before 2020TW4 5PD: before 2020TW4 5PF: before 2020TW4 5PG: before 2020TW4 5PH: before 2020TW4 5PJ: before 2020TW4 5PL: before 2020TW4 5PN: before 2020TW4 5PP: before 2020TW4 5PQ: before 2020TW4 5PR: before 2020TW4 5PS: before 2020TW4 5PT: before 2020TW4 5PU: before 2020TW4 5PW: before 2020TW4 5PX: before 2020TW4 5PY: before 2020TW4 5QE: before 2020TW4 5QF: before 2020TW4 5QH: before 2020TW4 5QJ: before 2020TW4 5QL: before 2020TW4 5QN: before 2020TW4 5QP: before 2020TW4 5QW: before 2020TW4 5SY: before 2020TW4 5AQ: new since 2020TW4 5AS: new since 2020TW4 5ET: new since 2020TW4 5WW: new since 2020TW4 5ES: new since 2020 Hounslow HeathHeathfield Map of every postcode in the TW4 5 sector, by new since 2020 Of the 165 postcodes in the TW4 5 sector that ONS places, 6 are new since 2020 and 159 were in use before 2020. 2 postcodes lie beyond the edge and are listed under the map. Places named: Hounslow Heath, Heathfield. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Hounslow HeathHeathfield
  • New since 2020: 6
  • In use before 2020: 159

Of the 165 postcodes in the TW4 5 sector that ONS places, 6 are new since 2020 and 159 were in use before 2020.

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. New since 2020 means it came into use in January 2020 or later. 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; when each came into use: the same directory; 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

2 further out, not drawn

These postcodes lie well apart from the rest, so the map is drawn without them to show the rest closer; they are in every count.

What do homes sell for in TW4 5?

Homes in TW4 5 sold for a typical £448,000 in the 12 months to August 2026, across 48 sales, up 21.1% on the 12 months before, HM Land Registry's figures show.

£448,000 typical price, the 12 months to August 2026
£370,000 12 months to August 2025
▲ up 21.1% on the 12 months before
  • Detached 1 sale, too few to price
  • Semi-detached £590,000 18 sales
  • Terraced £430,000 14 sales
  • Flat or maisonette £305,000 15 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 TW4 5. 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 TW4 5

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.

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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