TW9 3 postcode sector in the TW9 district

TW9 3 is a sector of the TW9 district: every postcode that starts TW9 3. It has 126 postcodes in use, 7 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 3 sector, and which are new since 2020

Map of every postcode in the TW9 3 sector, by new since 2020 Of the 126 postcodes in the TW9 3 sector that ONS places, 1 are new since 2020 and 125 were in use before 2020. Places named: Kew. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A316 TW9 3AA: before 2020TW9 3AB: before 2020TW9 3AE: before 2020TW9 3AF: before 2020TW9 3AG: before 2020TW9 3AH: before 2020TW9 3AL: before 2020TW9 3AN: before 2020TW9 3AP: before 2020TW9 3AQ: before 2020TW9 3AS: before 2020TW9 3AT: before 2020TW9 3AU: before 2020TW9 3AW: before 2020TW9 3AX: before 2020TW9 3AY: before 2020TW9 3AZ: before 2020TW9 3BB: before 2020TW9 3BD: before 2020TW9 3BE: before 2020TW9 3BF: before 2020TW9 3BG: before 2020TW9 3BH: before 2020TW9 3BL: before 2020TW9 3BQ: before 2020TW9 3BS: before 2020TW9 3BT: before 2020TW9 3BU: before 2020TW9 3BW: before 2020TW9 3BX: before 2020TW9 3BY: before 2020TW9 3BZ: before 2020TW9 3DA: before 2020TW9 3DB: before 2020TW9 3DD: before 2020TW9 3DE: before 2020TW9 3DF: before 2020TW9 3DG: before 2020TW9 3DH: before 2020TW9 3DQ: before 2020TW9 3DS: before 2020TW9 3DT: before 2020TW9 3DU: before 2020TW9 3DW: before 2020TW9 3DX: before 2020TW9 3DY: before 2020TW9 3DZ: before 2020TW9 3EA: before 2020TW9 3EB: before 2020TW9 3ED: before 2020TW9 3EE: before 2020TW9 3EF: before 2020TW9 3EG: before 2020TW9 3EH: before 2020TW9 3EL: before 2020TW9 3GA: before 2020TW9 3HA: before 2020TW9 3HB: before 2020TW9 3HD: before 2020TW9 3HE: before 2020TW9 3HF: before 2020TW9 3HG: before 2020TW9 3HH: before 2020TW9 3HJ: before 2020TW9 3HL: before 2020TW9 3HP: before 2020TW9 3HQ: before 2020TW9 3HR: before 2020TW9 3HS: before 2020TW9 3HT: before 2020TW9 3HW: before 2020TW9 3JA: before 2020TW9 3JB: before 2020TW9 3JD: before 2020TW9 3JE: before 2020TW9 3JF: before 2020TW9 3JG: before 2020TW9 3JJ: before 2020TW9 3JQ: before 2020TW9 3JR: before 2020TW9 3JS: before 2020TW9 3JT: before 2020TW9 3JU: before 2020TW9 3JX: before 2020TW9 3JY: before 2020TW9 3JZ: before 2020TW9 3LA: before 2020TW9 3LB: before 2020TW9 3LD: before 2020TW9 3LE: before 2020TW9 3LG: before 2020TW9 3LH: before 2020TW9 3LJ: before 2020TW9 3LL: before 2020TW9 3LQ: before 2020TW9 3LU: before 2020TW9 3LZ: before 2020TW9 3NA: before 2020TW9 3NB: before 2020TW9 3NF: before 2020TW9 3NG: before 2020TW9 3NH: before 2020TW9 3NJ: before 2020TW9 3NL: before 2020TW9 3NN: before 2020TW9 3NP: before 2020TW9 3NR: before 2020TW9 3NS: before 2020TW9 3NW: before 2020TW9 3PE: before 2020TW9 3PF: before 2020TW9 3PG: before 2020TW9 3PN: before 2020TW9 3PP: before 2020TW9 3PQ: before 2020TW9 3PR: before 2020TW9 3PS: before 2020TW9 3PZ: before 2020TW9 3QA: before 2020TW9 3QB: before 2020TW9 3QD: before 2020TW9 3QF: before 2020TW9 3QR: new since 2020 Kew Map of every postcode in the TW9 3 sector, by new since 2020 Of the 126 postcodes in the TW9 3 sector that ONS places, 1 are new since 2020 and 125 were in use before 2020. Places named: Kew. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Kew
  • New since 2020: 1
  • In use before 2020: 125

Of the 126 postcodes in the TW9 3 sector that ONS places, 1 are new since 2020 and 125 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

The newest postcode

What do homes sell for in TW9 3?

Homes in TW9 3 sold for a typical £750,000 in the 12 months to August 2026, across 49 sales, up 4.2% on the 12 months before, HM Land Registry's figures show.

£750,000 typical price, the 12 months to August 2026
£720,000 12 months to August 2025
▲ up 4.2% on the 12 months before
  • Detached 2 sales, too few to price
  • Semi-detached £1,700,000 9 sales
  • Terraced £920,000 13 sales
  • Flat or maisonette £516,000 25 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 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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