TW1 3 postcode sector in the TW1 district

TW1 3 is a sector of the TW1 district: every postcode that starts TW1 3. It has 122 postcodes in use, 9 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 TW1 3 sector, and which are new since 2020

Map of every postcode in the TW1 3 sector, by new since 2020 Of the 122 postcodes in the TW1 3 sector that ONS places, 122 were in use before 2020. One postcode lies beyond the edge and is listed under the map. Places named: Richmond upon Thames. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A305A3004 TW1 3AA: before 2020TW1 3AB: before 2020TW1 3AD: before 2020TW1 3AE: before 2020TW1 3AF: before 2020TW1 3AG: before 2020TW1 3AH: before 2020TW1 3AJ: before 2020TW1 3AL: before 2020TW1 3AN: before 2020TW1 3AP: before 2020TW1 3AQ: before 2020TW1 3AR: before 2020TW1 3AS: before 2020TW1 3AT: before 2020TW1 3AU: before 2020TW1 3AW: before 2020TW1 3AX: before 2020TW1 3AY: before 2020TW1 3BA: before 2020TW1 3BB: before 2020TW1 3BE: before 2020TW1 3BF: before 2020TW1 3BH: before 2020TW1 3BJ: before 2020TW1 3BL: before 2020TW1 3BW: before 2020TW1 3BZ: before 2020TW1 3DA: before 2020TW1 3DB: before 2020TW1 3DD: before 2020TW1 3DE: before 2020TW1 3DF: before 2020TW1 3DG: before 2020TW1 3DH: before 2020TW1 3DJ: before 2020TW1 3DL: before 2020TW1 3DN: before 2020TW1 3DP: before 2020TW1 3DQ: before 2020TW1 3DR: before 2020TW1 3DS: before 2020TW1 3DT: before 2020TW1 3DU: before 2020TW1 3DW: before 2020TW1 3DX: before 2020TW1 3DY: before 2020TW1 3EA: before 2020TW1 3EE: before 2020TW1 3EG: before 2020TW1 3EH: before 2020TW1 3EJ: before 2020TW1 3EL: before 2020TW1 3EN: before 2020TW1 3EP: before 2020TW1 3EQ: before 2020TW1 3ER: before 2020TW1 3ES: before 2020TW1 3EU: before 2020TW1 3EW: before 2020TW1 3EX: before 2020TW1 3HB: before 2020TW1 3HD: before 2020TW1 3HE: before 2020TW1 3HG: before 2020TW1 3HH: before 2020TW1 3HJ: before 2020TW1 3HN: before 2020TW1 3HP: before 2020TW1 3HQ: before 2020TW1 3HR: before 2020TW1 3HS: before 2020TW1 3HT: before 2020TW1 3HU: before 2020TW1 3HW: before 2020TW1 3HX: before 2020TW1 3HY: before 2020TW1 3JA: before 2020TW1 3JB: before 2020TW1 3JD: before 2020TW1 3JF: before 2020TW1 3JS: before 2020TW1 3JT: before 2020TW1 3JU: before 2020TW1 3JZ: before 2020TW1 3LD: before 2020TW1 3LJ: before 2020TW1 3LP: before 2020TW1 3LS: before 2020TW1 3ND: before 2020TW1 3NE: before 2020TW1 3NF: before 2020TW1 3NG: before 2020TW1 3NH: before 2020TW1 3NJ: before 2020TW1 3NN: before 2020TW1 3NP: before 2020TW1 3NR: before 2020TW1 3NS: before 2020TW1 3NU: before 2020TW1 3NX: before 2020TW1 3NY: before 2020TW1 3NZ: before 2020TW1 3PA: before 2020TW1 3PB: before 2020TW1 3QS: before 2020TW1 3RJ: before 2020TW1 3RP: before 2020TW1 3RR: before 2020TW1 3RZ: before 2020TW1 3SD: before 2020TW1 3SE: before 2020TW1 3SG: before 2020TW1 3SH: before 2020TW1 3SN: before 2020TW1 3SP: before 2020TW1 3SX: before 2020TW1 3SY: before 2020TW1 3SZ: before 2020 Richmond upon Thames Map of every postcode in the TW1 3 sector, by new since 2020 Of the 122 postcodes in the TW1 3 sector that ONS places, 122 were in use before 2020. One postcode lies beyond the edge and is listed under the map. Places named: Richmond upon Thames. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A305 Richmond upon Thames
  • New since 2020: 0
  • In use before 2020: 122

Of the 122 postcodes in the TW1 3 sector that ONS places, 122 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.

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

Further out, not drawn

This postcode lies well apart from the rest, so the map is drawn without it to show the rest closer; it is in every count.

What do homes sell for in TW1 3?

Homes in TW1 3 sold for a typical £637,500 in the 12 months to August 2026, across 56 sales, up 4.5% on the 12 months before, HM Land Registry's figures show.

£637,500 typical price, the 12 months to August 2026
£610,000 12 months to August 2025
▲ up 4.5% on the 12 months before
  • Detached 3 sales, too few to price
  • Semi-detached £1,505,000 8 sales
  • Terraced £1,150,000 18 sales
  • Flat or maisonette £380,000 27 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 TW1 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

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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