W4 4 postcode sector in the W4 district

W4 4 is a sector of the W4 district: every postcode that starts W4 4. It has 137 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 W4 4 sector, by flood risk

Map of every postcode in the W4 4 sector, by flood risk Of the 137 postcodes in the W4 4 sector that ONS places, 137 are not on the Environment Agency's at-risk list. Places named: Chiswick Gunnersbury. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A4 W4 4AA: not on the flood risk listW4 4AB: not on the flood risk listW4 4AD: not on the flood risk listW4 4AG: not on the flood risk listW4 4AH: not on the flood risk listW4 4AJ: not on the flood risk listW4 4AN: not on the flood risk listW4 4AR: not on the flood risk listW4 4AU: not on the flood risk listW4 4AW: not on the flood risk listW4 4AZ: not on the flood risk listW4 4BA: not on the flood risk listW4 4BD: not on the flood risk listW4 4BE: not on the flood risk listW4 4BF: not on the flood risk listW4 4BG: not on the flood risk listW4 4BJ: not on the flood risk listW4 4BL: not on the flood risk listW4 4BN: not on the flood risk listW4 4BQ: not on the flood risk listW4 4BS: not on the flood risk listW4 4BT: not on the flood risk listW4 4BU: not on the flood risk listW4 4BX: not on the flood risk listW4 4BZ: not on the flood risk listW4 4DA: not on the flood risk listW4 4DB: not on the flood risk listW4 4DD: not on the flood risk listW4 4DE: not on the flood risk listW4 4DF: not on the flood risk listW4 4DG: not on the flood risk listW4 4DH: not on the flood risk listW4 4DJ: not on the flood risk listW4 4DL: not on the flood risk listW4 4DN: not on the flood risk listW4 4DP: not on the flood risk listW4 4DQ: not on the flood risk listW4 4DR: not on the flood risk listW4 4DS: not on the flood risk listW4 4DT: not on the flood risk listW4 4DU: not on the flood risk listW4 4DW: not on the flood risk listW4 4DX: not on the flood risk listW4 4EA: not on the flood risk listW4 4EB: not on the flood risk listW4 4ED: not on the flood risk listW4 4EE: not on the flood risk listW4 4EF: not on the flood risk listW4 4EG: not on the flood risk listW4 4EH: not on the flood risk listW4 4EJ: not on the flood risk listW4 4EL: not on the flood risk listW4 4EN: not on the flood risk listW4 4EQ: not on the flood risk listW4 4ET: not on the flood risk listW4 4EU: not on the flood risk listW4 4EW: not on the flood risk listW4 4EY: not on the flood risk listW4 4EZ: not on the flood risk listW4 4HA: not on the flood risk listW4 4HB: not on the flood risk listW4 4HD: not on the flood risk listW4 4HE: not on the flood risk listW4 4HF: not on the flood risk listW4 4HG: not on the flood risk listW4 4HH: not on the flood risk listW4 4HJ: not on the flood risk listW4 4HS: not on the flood risk listW4 4HT: not on the flood risk listW4 4JA: not on the flood risk listW4 4JB: not on the flood risk listW4 4JD: not on the flood risk listW4 4JE: not on the flood risk listW4 4JN: not on the flood risk listW4 4JP: not on the flood risk listW4 4JQ: not on the flood risk listW4 4JR: not on the flood risk listW4 4JS: not on the flood risk listW4 4JT: not on the flood risk listW4 4JU: not on the flood risk listW4 4JW: not on the flood risk listW4 4JX: not on the flood risk listW4 4JY: not on the flood risk listW4 4LA: not on the flood risk listW4 4LB: not on the flood risk listW4 4LD: not on the flood risk listW4 4LE: not on the flood risk listW4 4LG: not on the flood risk listW4 4LP: not on the flood risk listW4 4LQ: not on the flood risk listW4 4LR: not on the flood risk listW4 4LS: not on the flood risk listW4 4LT: not on the flood risk listW4 4LZ: not on the flood risk listW4 4NA: not on the flood risk listW4 4NB: not on the flood risk listW4 4ND: not on the flood risk listW4 4NE: not on the flood risk listW4 4NF: not on the flood risk listW4 4NG: not on the flood risk listW4 4NH: not on the flood risk listW4 4NJ: not on the flood risk listW4 4NL: not on the flood risk listW4 4NN: not on the flood risk listW4 4NP: not on the flood risk listW4 4NR: not on the flood risk listW4 4NS: not on the flood risk listW4 4NT: not on the flood risk listW4 4NU: not on the flood risk listW4 4NX: not on the flood risk listW4 4NY: not on the flood risk listW4 4PA: not on the flood risk listW4 4PB: not on the flood risk listW4 4PD: not on the flood risk listW4 4PH: not on the flood risk listW4 4PU: not on the flood risk listW4 4QE: not on the flood risk listW4 4QF: not on the flood risk listW4 4QG: not on the flood risk listW4 4QH: not on the flood risk listW4 4QJ: not on the flood risk listW4 4QL: not on the flood risk listW4 4QN: not on the flood risk listW4 4QP: not on the flood risk listW4 4QQ: not on the flood risk listW4 4QR: not on the flood risk listW4 4QS: not on the flood risk listW4 4QT: not on the flood risk listW4 4QU: not on the flood risk listW4 4QX: not on the flood risk listW4 4QY: not on the flood risk list Chiswick Gunnersbury Map of every postcode in the W4 4 sector, by flood risk Of the 137 postcodes in the W4 4 sector that ONS places, 137 are not on the Environment Agency's at-risk list. Places named: Chiswick Gunnersbury. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Chiswick Gunnersbury
  • 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: 137

Of the 137 postcodes in the W4 4 sector that ONS places, 137 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 W4 4?

Homes in W4 4 sold for a typical £629,000 in the 12 months to August 2026, across 51 sales, up 16.5% on the 12 months before, HM Land Registry's figures show.

£629,000 typical price, the 12 months to August 2026
£540,000 12 months to August 2025
▲ up 16.5% on the 12 months before
  • Detached 2 sales, too few to price
  • Semi-detached £2,325,000 7 sales
  • Terraced 4 sales, too few to price
  • Flat or maisonette £494,000 38 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 4. 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 4

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.

W4 4AAW4 4ABW4 4ADW4 4AGW4 4AHW4 4AJW4 4ALW4 4ANW4 4ARW4 4AUW4 4AWW4 4AZW4 4BAW4 4BDW4 4BEW4 4BFW4 4BGW4 4BJW4 4BLW4 4BNW4 4BQW4 4BSW4 4BTW4 4BUW4 4BXW4 4BZW4 4DAW4 4DBW4 4DDW4 4DEW4 4DFW4 4DGW4 4DHW4 4DJW4 4DLW4 4DNW4 4DPW4 4DQW4 4DRW4 4DSW4 4DTW4 4DUW4 4DWW4 4DXW4 4EAW4 4EBW4 4EDW4 4EEW4 4EFW4 4EGW4 4EHW4 4EJW4 4ELW4 4ENW4 4EQW4 4ETW4 4EUW4 4EWW4 4EYW4 4EZW4 4HAW4 4HBW4 4HDW4 4HEW4 4HFW4 4HGW4 4HHW4 4HJW4 4HSW4 4HTW4 4JAW4 4JBW4 4JDW4 4JEW4 4JFW4 4JGW4 4JNW4 4JPW4 4JQW4 4JRW4 4JSW4 4JTW4 4JUW4 4JWW4 4JXW4 4JYW4 4LAW4 4LBW4 4LDW4 4LEW4 4LGW4 4LPW4 4LQW4 4LRW4 4LSW4 4LTW4 4LZW4 4NAW4 4NBW4 4NDW4 4NEW4 4NFW4 4NGW4 4NHW4 4NJW4 4NLW4 4NNW4 4NPW4 4NRW4 4NSW4 4NTW4 4NUW4 4NXW4 4NYW4 4PAW4 4PBW4 4PDW4 4PHW4 4PNW4 4PUW4 4QEW4 4QFW4 4QGW4 4QHW4 4QJW4 4QLW4 4QNW4 4QPW4 4QQW4 4QRW4 4QSW4 4QTW4 4QUW4 4QXW4 4QYW4 4WRW4 4XG

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.

Check a postcode

Something wrong on this page? Report an error and we will check it against the source.