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, by flood risk

Map of every postcode in the WD3 4 sector, by flood risk Of the 162 postcodes in the WD3 4 sector that ONS places, 162 are not on the Environment Agency's at-risk list. Places named: Rickmansworth, Chorleywood. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. M25 WD3 4AA: not on the flood risk listWD3 4AB: not on the flood risk listWD3 4AD: not on the flood risk listWD3 4AE: not on the flood risk listWD3 4AF: not on the flood risk listWD3 4AG: not on the flood risk listWD3 4AH: not on the flood risk listWD3 4AJ: not on the flood risk listWD3 4AL: not on the flood risk listWD3 4AN: not on the flood risk listWD3 4AP: not on the flood risk listWD3 4AQ: not on the flood risk listWD3 4AR: not on the flood risk listWD3 4AS: not on the flood risk listWD3 4AT: not on the flood risk listWD3 4AW: not on the flood risk listWD3 4AX: not on the flood risk listWD3 4AY: not on the flood risk listWD3 4AZ: not on the flood risk listWD3 4BA: not on the flood risk listWD3 4BB: not on the flood risk listWD3 4BD: not on the flood risk listWD3 4BE: not on the flood risk listWD3 4BG: not on the flood risk listWD3 4BH: not on the flood risk listWD3 4BJ: not on the flood risk listWD3 4BL: not on the flood risk listWD3 4BN: not on the flood risk listWD3 4BP: not on the flood risk listWD3 4BQ: not on the flood risk listWD3 4BR: not on the flood risk listWD3 4BS: not on the flood risk listWD3 4BT: not on the flood risk listWD3 4BU: not on the flood risk listWD3 4BW: not on the flood risk listWD3 4BX: not on the flood risk listWD3 4BY: not on the flood risk listWD3 4BZ: not on the flood risk listWD3 4DA: not on the flood risk listWD3 4DB: not on the flood risk listWD3 4DD: not on the flood risk listWD3 4DE: not on the flood risk listWD3 4DF: not on the flood risk listWD3 4DH: not on the flood risk listWD3 4DJ: not on the flood risk listWD3 4DL: not on the flood risk listWD3 4DN: not on the flood risk listWD3 4DP: not on the flood risk listWD3 4DR: not on the flood risk listWD3 4DS: not on the flood risk listWD3 4DT: not on the flood risk listWD3 4DU: not on the flood risk listWD3 4DW: not on the flood risk listWD3 4DX: not on the flood risk listWD3 4DY: not on the flood risk listWD3 4DZ: not on the flood risk listWD3 4EA: not on the flood risk listWD3 4EB: not on the flood risk listWD3 4ED: not on the flood risk listWD3 4EE: not on the flood risk listWD3 4EG: not on the flood risk listWD3 4EH: not on the flood risk listWD3 4EJ: not on the flood risk listWD3 4EL: not on the flood risk listWD3 4EN: not on the flood risk listWD3 4EP: not on the flood risk listWD3 4EQ: not on the flood risk listWD3 4ER: not on the flood risk listWD3 4ES: not on the flood risk listWD3 4ET: not on the flood risk listWD3 4EU: not on the flood risk listWD3 4EW: not on the flood risk listWD3 4EX: not on the flood risk listWD3 4EY: not on the flood risk listWD3 4EZ: not on the flood risk listWD3 4FF: not on the flood risk listWD3 4FR: not on the flood risk listWD3 4FW: not on the flood risk listWD3 4GX: not on the flood risk listWD3 4GZ: not on the flood risk listWD3 4HA: not on the flood risk listWD3 4HB: not on the flood risk listWD3 4HD: not on the flood risk listWD3 4HE: not on the flood risk listWD3 4HF: not on the flood risk listWD3 4HG: not on the flood risk listWD3 4HH: not on the flood risk listWD3 4HJ: not on the flood risk listWD3 4HL: not on the flood risk listWD3 4HN: not on the flood risk listWD3 4HP: not on the flood risk listWD3 4HQ: not on the flood risk listWD3 4HR: not on the flood risk listWD3 4HS: not on the flood risk listWD3 4HT: not on the flood risk listWD3 4HU: not on the flood risk listWD3 4HW: not on the flood risk listWD3 4HX: not on the flood risk listWD3 4HY: not on the flood risk listWD3 4HZ: not on the flood risk listWD3 4JA: not on the flood risk listWD3 4JB: not on the flood risk listWD3 4JD: not on the flood risk listWD3 4JE: not on the flood risk listWD3 4JG: not on the flood risk listWD3 4JH: not on the flood risk listWD3 4JN: not on the flood risk listWD3 4JP: not on the flood risk listWD3 4JQ: not on the flood risk listWD3 4JR: not on the flood risk listWD3 4JS: not on the flood risk listWD3 4JT: not on the flood risk listWD3 4JU: not on the flood risk listWD3 4JW: not on the flood risk listWD3 4JX: not on the flood risk listWD3 4JY: not on the flood risk listWD3 4JZ: not on the flood risk listWD3 4LA: not on the flood risk listWD3 4LB: not on the flood risk listWD3 4LD: not on the flood risk listWD3 4LE: not on the flood risk listWD3 4LG: not on the flood risk listWD3 4LH: not on the flood risk listWD3 4LL: not on the flood risk listWD3 4LN: not on the flood risk listWD3 4LP: not on the flood risk listWD3 4LQ: not on the flood risk listWD3 4LR: not on the flood risk listWD3 4LS: not on the flood risk listWD3 4LT: not on the flood risk listWD3 4LU: not on the flood risk listWD3 4LW: not on the flood risk listWD3 4LX: not on the flood risk listWD3 4LY: not on the flood risk listWD3 4LZ: not on the flood risk listWD3 4NA: not on the flood risk listWD3 4NB: not on the flood risk listWD3 4ND: not on the flood risk listWD3 4NE: not on the flood risk listWD3 4NF: not on the flood risk listWD3 4NG: not on the flood risk listWD3 4NH: not on the flood risk listWD3 4NJ: not on the flood risk listWD3 4NL: not on the flood risk listWD3 4NN: not on the flood risk listWD3 4NP: not on the flood risk listWD3 4NQ: not on the flood risk listWD3 4NR: not on the flood risk listWD3 4NS: not on the flood risk listWD3 4NT: not on the flood risk listWD3 4NU: not on the flood risk listWD3 4NX: not on the flood risk listWD3 4NY: not on the flood risk listWD3 4PA: not on the flood risk listWD3 4PB: not on the flood risk listWD3 4PD: not on the flood risk listWD3 4PQ: not on the flood risk listWD3 4PT: not on the flood risk listWD3 4QP: not on the flood risk listWD3 4RD: not on the flood risk listWD3 4TG: not on the flood risk listWD3 4ZJ: not on the flood risk list RickmansworthChorleywood Map of every postcode in the WD3 4 sector, by flood risk Of the 162 postcodes in the WD3 4 sector that ONS places, 162 are not on the Environment Agency's at-risk list. Places named: Rickmansworth, Chorleywood. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A404A412M25 RickmansworthChorleywood
  • 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: 162

Of the 162 postcodes in the WD3 4 sector that ONS places, 162 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.

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 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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