WD3 4 postcode sector in the WD3 district

WD3 4 is a sector of the WD3 district: every postcode that starts WD3 4. It has 162 postcodes in use, 2 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 WD3 4 sector, and which are new since 2020

Map of every postcode in the WD3 4 sector, by new since 2020 Of the 162 postcodes in the WD3 4 sector that ONS places, 1 are new since 2020 and 161 were in use before 2020. Places named: Rickmansworth, Chorleywood. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. M25 WD3 4AA: before 2020WD3 4AB: before 2020WD3 4AD: before 2020WD3 4AE: before 2020WD3 4AF: before 2020WD3 4AG: before 2020WD3 4AH: before 2020WD3 4AJ: before 2020WD3 4AL: before 2020WD3 4AN: before 2020WD3 4AP: before 2020WD3 4AQ: before 2020WD3 4AR: before 2020WD3 4AS: before 2020WD3 4AT: before 2020WD3 4AW: before 2020WD3 4AX: before 2020WD3 4AY: before 2020WD3 4AZ: before 2020WD3 4BA: before 2020WD3 4BB: before 2020WD3 4BD: before 2020WD3 4BE: before 2020WD3 4BG: before 2020WD3 4BH: before 2020WD3 4BJ: before 2020WD3 4BL: before 2020WD3 4BN: before 2020WD3 4BP: before 2020WD3 4BQ: before 2020WD3 4BR: before 2020WD3 4BS: before 2020WD3 4BT: before 2020WD3 4BU: before 2020WD3 4BW: before 2020WD3 4BX: before 2020WD3 4BY: before 2020WD3 4BZ: before 2020WD3 4DA: before 2020WD3 4DB: before 2020WD3 4DD: before 2020WD3 4DE: before 2020WD3 4DF: before 2020WD3 4DH: before 2020WD3 4DJ: before 2020WD3 4DL: before 2020WD3 4DN: before 2020WD3 4DP: before 2020WD3 4DR: before 2020WD3 4DS: before 2020WD3 4DT: before 2020WD3 4DU: before 2020WD3 4DW: before 2020WD3 4DX: before 2020WD3 4DY: before 2020WD3 4DZ: before 2020WD3 4EA: before 2020WD3 4EB: before 2020WD3 4ED: before 2020WD3 4EE: before 2020WD3 4EG: before 2020WD3 4EH: before 2020WD3 4EJ: before 2020WD3 4EL: before 2020WD3 4EN: before 2020WD3 4EP: before 2020WD3 4EQ: before 2020WD3 4ER: before 2020WD3 4ES: before 2020WD3 4ET: before 2020WD3 4EU: before 2020WD3 4EW: before 2020WD3 4EX: before 2020WD3 4EY: before 2020WD3 4EZ: before 2020WD3 4FR: before 2020WD3 4FW: before 2020WD3 4GX: before 2020WD3 4GZ: before 2020WD3 4HA: before 2020WD3 4HB: before 2020WD3 4HD: before 2020WD3 4HE: before 2020WD3 4HF: before 2020WD3 4HG: before 2020WD3 4HH: before 2020WD3 4HJ: before 2020WD3 4HL: before 2020WD3 4HN: before 2020WD3 4HP: before 2020WD3 4HQ: before 2020WD3 4HR: before 2020WD3 4HS: before 2020WD3 4HT: before 2020WD3 4HU: before 2020WD3 4HW: before 2020WD3 4HX: before 2020WD3 4HY: before 2020WD3 4HZ: before 2020WD3 4JA: before 2020WD3 4JB: before 2020WD3 4JD: before 2020WD3 4JE: before 2020WD3 4JG: before 2020WD3 4JH: before 2020WD3 4JN: before 2020WD3 4JP: before 2020WD3 4JQ: before 2020WD3 4JR: before 2020WD3 4JS: before 2020WD3 4JT: before 2020WD3 4JU: before 2020WD3 4JW: before 2020WD3 4JX: before 2020WD3 4JY: before 2020WD3 4JZ: before 2020WD3 4LA: before 2020WD3 4LB: before 2020WD3 4LD: before 2020WD3 4LE: before 2020WD3 4LG: before 2020WD3 4LH: before 2020WD3 4LL: before 2020WD3 4LN: before 2020WD3 4LP: before 2020WD3 4LQ: before 2020WD3 4LR: before 2020WD3 4LS: before 2020WD3 4LT: before 2020WD3 4LU: before 2020WD3 4LW: before 2020WD3 4LX: before 2020WD3 4LY: before 2020WD3 4LZ: before 2020WD3 4NA: before 2020WD3 4NB: before 2020WD3 4ND: before 2020WD3 4NE: before 2020WD3 4NF: before 2020WD3 4NG: before 2020WD3 4NH: before 2020WD3 4NJ: before 2020WD3 4NL: before 2020WD3 4NN: before 2020WD3 4NP: before 2020WD3 4NQ: before 2020WD3 4NR: before 2020WD3 4NS: before 2020WD3 4NT: before 2020WD3 4NU: before 2020WD3 4NX: before 2020WD3 4NY: before 2020WD3 4PA: before 2020WD3 4PB: before 2020WD3 4PD: before 2020WD3 4PQ: before 2020WD3 4PT: before 2020WD3 4QP: before 2020WD3 4RD: before 2020WD3 4TG: before 2020WD3 4ZJ: before 2020WD3 4FF: new since 2020 RickmansworthChorleywood Map of every postcode in the WD3 4 sector, by new since 2020 Of the 162 postcodes in the WD3 4 sector that ONS places, 1 are new since 2020 and 161 were in use before 2020. Places named: Rickmansworth, Chorleywood. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A404A412M25 RickmansworthChorleywood
  • New since 2020: 1
  • In use before 2020: 161

Of the 162 postcodes in the WD3 4 sector that ONS places, 1 are new since 2020 and 161 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.

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

WD3 4FFJuly 2020

What do homes sell for in WD3 4?

Homes in WD3 4 sold for a typical £1,370,000 in the 12 months to August 2026, across 33 sales, up 3.8% on the 12 months before, HM Land Registry's figures show.

£1,370,000 typical price, the 12 months to August 2026
£1,320,000 12 months to August 2025
▲ up 3.8% on the 12 months before
  • Detached £1,391,500 30 sales
  • Semi-detached 1 sale, too few to price
  • Flat or maisonette 2 sales, too few to price

Standard sales of homes at market value at the postcodes that start WD3 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 WD3 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.

WD3 4AAWD3 4ABWD3 4ADWD3 4AEWD3 4AFWD3 4AGWD3 4AHWD3 4AJWD3 4ALWD3 4ANWD3 4APWD3 4AQWD3 4ARWD3 4ASWD3 4ATWD3 4AWWD3 4AXWD3 4AYWD3 4AZWD3 4BAWD3 4BBWD3 4BDWD3 4BEWD3 4BGWD3 4BHWD3 4BJWD3 4BLWD3 4BNWD3 4BPWD3 4BQWD3 4BRWD3 4BSWD3 4BTWD3 4BUWD3 4BWWD3 4BXWD3 4BYWD3 4BZWD3 4DAWD3 4DBWD3 4DDWD3 4DEWD3 4DFWD3 4DHWD3 4DJWD3 4DLWD3 4DNWD3 4DPWD3 4DRWD3 4DSWD3 4DTWD3 4DUWD3 4DWWD3 4DXWD3 4DYWD3 4DZWD3 4EAWD3 4EBWD3 4EDWD3 4EEWD3 4EGWD3 4EHWD3 4EJWD3 4ELWD3 4ENWD3 4EPWD3 4EQWD3 4ERWD3 4ESWD3 4ETWD3 4EUWD3 4EWWD3 4EXWD3 4EYWD3 4EZWD3 4FFWD3 4FRWD3 4FWWD3 4GXWD3 4GZWD3 4HAWD3 4HBWD3 4HDWD3 4HEWD3 4HFWD3 4HGWD3 4HHWD3 4HJWD3 4HLWD3 4HNWD3 4HPWD3 4HQWD3 4HRWD3 4HSWD3 4HTWD3 4HUWD3 4HWWD3 4HXWD3 4HYWD3 4HZWD3 4JAWD3 4JBWD3 4JDWD3 4JEWD3 4JGWD3 4JHWD3 4JNWD3 4JPWD3 4JQWD3 4JRWD3 4JSWD3 4JTWD3 4JUWD3 4JWWD3 4JXWD3 4JYWD3 4JZWD3 4LAWD3 4LBWD3 4LDWD3 4LEWD3 4LGWD3 4LHWD3 4LLWD3 4LNWD3 4LPWD3 4LQWD3 4LRWD3 4LSWD3 4LTWD3 4LUWD3 4LWWD3 4LXWD3 4LYWD3 4LZWD3 4NAWD3 4NBWD3 4NDWD3 4NEWD3 4NFWD3 4NGWD3 4NHWD3 4NJWD3 4NLWD3 4NNWD3 4NPWD3 4NQWD3 4NRWD3 4NSWD3 4NTWD3 4NUWD3 4NXWD3 4NYWD3 4PAWD3 4PBWD3 4PDWD3 4PQWD3 4PTWD3 4QPWD3 4RDWD3 4TGWD3 4ZJ

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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