W4 1 postcode sector in the W4 district

W4 1 is a sector of the W4 district: every postcode that starts W4 1. It has 198 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 W4 1 sector, and which are new since 2020

Map of every postcode in the W4 1 sector, by new since 2020 Of the 198 postcodes in the W4 1 sector that ONS places, 198 were in use before 2020. Places named: Southfield, Chiswick Homefields. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. W4 1AA: before 2020W4 1AB: before 2020W4 1AD: before 2020W4 1AE: before 2020W4 1AF: before 2020W4 1AG: before 2020W4 1AH: before 2020W4 1AJ: before 2020W4 1AL: before 2020W4 1AN: before 2020W4 1AP: before 2020W4 1AQ: before 2020W4 1AR: before 2020W4 1AS: before 2020W4 1AT: before 2020W4 1AU: before 2020W4 1AW: before 2020W4 1AX: before 2020W4 1AY: before 2020W4 1AZ: before 2020W4 1BA: before 2020W4 1BB: before 2020W4 1BD: before 2020W4 1BH: before 2020W4 1BJ: before 2020W4 1BL: before 2020W4 1BN: before 2020W4 1BP: before 2020W4 1BS: before 2020W4 1BU: before 2020W4 1BW: before 2020W4 1BX: before 2020W4 1BY: before 2020W4 1BZ: before 2020W4 1DA: before 2020W4 1DB: before 2020W4 1DD: before 2020W4 1DE: before 2020W4 1DF: before 2020W4 1DG: before 2020W4 1DH: before 2020W4 1DJ: before 2020W4 1DL: before 2020W4 1DP: before 2020W4 1DQ: before 2020W4 1DR: before 2020W4 1DS: before 2020W4 1DT: before 2020W4 1DU: before 2020W4 1DX: before 2020W4 1DY: before 2020W4 1DZ: before 2020W4 1EA: before 2020W4 1EB: before 2020W4 1ED: before 2020W4 1EE: before 2020W4 1EF: before 2020W4 1EG: before 2020W4 1EL: before 2020W4 1EN: before 2020W4 1EP: before 2020W4 1EQ: before 2020W4 1ER: before 2020W4 1ET: before 2020W4 1EU: before 2020W4 1EW: before 2020W4 1EX: before 2020W4 1EY: before 2020W4 1GX: before 2020W4 1HA: before 2020W4 1HB: before 2020W4 1HD: before 2020W4 1HE: before 2020W4 1HF: before 2020W4 1HG: before 2020W4 1HJ: before 2020W4 1HL: before 2020W4 1HN: before 2020W4 1HP: before 2020W4 1HQ: before 2020W4 1HR: before 2020W4 1HS: before 2020W4 1HT: before 2020W4 1HU: before 2020W4 1HW: before 2020W4 1HX: before 2020W4 1JA: before 2020W4 1JB: before 2020W4 1JD: before 2020W4 1JE: before 2020W4 1JF: before 2020W4 1JG: before 2020W4 1JH: before 2020W4 1JJ: before 2020W4 1JN: before 2020W4 1JQ: before 2020W4 1JR: before 2020W4 1JS: before 2020W4 1JT: before 2020W4 1JU: before 2020W4 1JW: before 2020W4 1JX: before 2020W4 1JY: before 2020W4 1JZ: before 2020W4 1LA: before 2020W4 1LB: before 2020W4 1LD: before 2020W4 1LH: before 2020W4 1LJ: before 2020W4 1LL: before 2020W4 1LR: before 2020W4 1LS: before 2020W4 1LU: before 2020W4 1LW: before 2020W4 1LY: before 2020W4 1LZ: before 2020W4 1NA: before 2020W4 1NB: before 2020W4 1ND: before 2020W4 1NE: before 2020W4 1NF: before 2020W4 1NG: before 2020W4 1NH: before 2020W4 1NJ: before 2020W4 1NL: before 2020W4 1NN: before 2020W4 1NP: before 2020W4 1NQ: before 2020W4 1NU: before 2020W4 1NX: before 2020W4 1NY: before 2020W4 1PA: before 2020W4 1PD: before 2020W4 1PE: before 2020W4 1PF: before 2020W4 1PG: before 2020W4 1PJ: before 2020W4 1PL: before 2020W4 1PN: before 2020W4 1PP: before 2020W4 1PQ: before 2020W4 1PR: before 2020W4 1PU: before 2020W4 1PW: before 2020W4 1QE: before 2020W4 1QF: before 2020W4 1QG: before 2020W4 1QH: before 2020W4 1QN: before 2020W4 1QP: before 2020W4 1QQ: before 2020W4 1QU: before 2020W4 1QZ: before 2020W4 1RG: before 2020W4 1RJ: before 2020W4 1RN: before 2020W4 1RP: before 2020W4 1RR: before 2020W4 1RS: before 2020W4 1RT: before 2020W4 1RW: before 2020W4 1RX: before 2020W4 1RZ: before 2020W4 1SA: before 2020W4 1SD: before 2020W4 1SE: before 2020W4 1SF: before 2020W4 1SH: before 2020W4 1SN: before 2020W4 1SP: before 2020W4 1SY: before 2020W4 1SZ: before 2020W4 1TA: before 2020W4 1TD: before 2020W4 1TE: before 2020W4 1TF: before 2020W4 1TG: before 2020W4 1TH: before 2020W4 1TN: before 2020W4 1TP: before 2020W4 1TQ: before 2020W4 1TR: before 2020W4 1TS: before 2020W4 1TT: before 2020W4 1TU: before 2020W4 1TW: before 2020W4 1TX: before 2020W4 1TY: before 2020W4 1TZ: before 2020W4 1UA: before 2020W4 1UB: before 2020W4 1UD: before 2020W4 1UE: before 2020W4 1UF: before 2020W4 1UH: before 2020W4 1YA: before 2020 SouthfieldChiswick Homefields Map of every postcode in the W4 1 sector, by new since 2020 Of the 198 postcodes in the W4 1 sector that ONS places, 198 were in use before 2020. Places named: Southfield, Chiswick Homefields. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. SouthfieldChiswick Homefields
  • New since 2020: 0
  • In use before 2020: 198

Of the 198 postcodes in the W4 1 sector that ONS places, 198 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

What do homes sell for in W4 1?

Homes in W4 1 sold for a typical £1,160,000 in the 12 months to August 2026, across 82 sales, up 8.2% on the 12 months before, HM Land Registry's figures show.

£1,160,000 typical price, the 12 months to August 2026
£1,072,500 12 months to August 2025
▲ up 8.2% on the 12 months before
  • Detached 2 sales, too few to price
  • Semi-detached £1,877,500 18 sales
  • Terraced £1,305,000 32 sales
  • Flat or maisonette £563,500 30 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 W4 1. 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 W4 1

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.

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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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