WD23 4 postcode sector in the WD23 district

WD23 4 is a sector of the WD23 district: every postcode that starts WD23 4. It has 158 postcodes in use, 5 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 WD23 4 sector, by flood risk

Map of every postcode in the WD23 4 sector, by flood risk Of the 158 postcodes in the WD23 4 sector that ONS places, 1 have a home or business at high risk, 1 are at medium risk at worst, 2 are at low risk at worst and 154 are not on the Environment Agency's at-risk list. Places named: Bushey. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. M1A41A411 WD23 4AA: not on the flood risk listWD23 4AB: not on the flood risk listWD23 4AD: not on the flood risk listWD23 4AE: not on the flood risk listWD23 4AF: not on the flood risk listWD23 4AG: not on the flood risk listWD23 4AH: not on the flood risk listWD23 4AJ: not on the flood risk listWD23 4DN: not on the flood risk listWD23 4DQ: not on the flood risk listWD23 4EB: not on the flood risk listWD23 4ED: not on the flood risk listWD23 4EE: not on the flood risk listWD23 4EF: not on the flood risk listWD23 4EG: not on the flood risk listWD23 4EH: not on the flood risk listWD23 4EJ: not on the flood risk listWD23 4EL: not on the flood risk listWD23 4FA: not on the flood risk listWD23 4FB: not on the flood risk listWD23 4FX: not on the flood risk listWD23 4FY: not on the flood risk listWD23 4FZ: not on the flood risk listWD23 4GA: not on the flood risk listWD23 4GB: not on the flood risk listWD23 4GD: not on the flood risk listWD23 4GE: not on the flood risk listWD23 4GF: not on the flood risk listWD23 4GG: not on the flood risk listWD23 4GH: not on the flood risk listWD23 4GJ: not on the flood risk listWD23 4GL: not on the flood risk listWD23 4GN: not on the flood risk listWD23 4GQ: not on the flood risk listWD23 4GR: not on the flood risk listWD23 4GS: not on the flood risk listWD23 4GT: not on the flood risk listWD23 4HG: not on the flood risk listWD23 4HH: not on the flood risk listWD23 4HJ: not on the flood risk listWD23 4HL: not on the flood risk listWD23 4HN: not on the flood risk listWD23 4HP: not on the flood risk listWD23 4HQ: not on the flood risk listWD23 4HR: not on the flood risk listWD23 4HS: not on the flood risk listWD23 4HT: not on the flood risk listWD23 4HU: not on the flood risk listWD23 4HW: not on the flood risk listWD23 4HX: not on the flood risk listWD23 4HY: not on the flood risk listWD23 4HZ: not on the flood risk listWD23 4JA: not on the flood risk listWD23 4JB: not on the flood risk listWD23 4JD: not on the flood risk listWD23 4JH: not on the flood risk listWD23 4JP: not on the flood risk listWD23 4JR: not on the flood risk listWD23 4JS: not on the flood risk listWD23 4JT: not on the flood risk listWD23 4JU: not on the flood risk listWD23 4JW: not on the flood risk listWD23 4JX: not on the flood risk listWD23 4JY: not on the flood risk listWD23 4JZ: not on the flood risk listWD23 4LA: not on the flood risk listWD23 4LB: not on the flood risk listWD23 4LD: not on the flood risk listWD23 4LE: not on the flood risk listWD23 4LF: not on the flood risk listWD23 4LG: not on the flood risk listWD23 4LH: not on the flood risk listWD23 4LJ: not on the flood risk listWD23 4LN: not on the flood risk listWD23 4LP: not on the flood risk listWD23 4LQ: not on the flood risk listWD23 4NN: not on the flood risk listWD23 4NP: not on the flood risk listWD23 4NQ: not on the flood risk listWD23 4NR: not on the flood risk listWD23 4NS: not on the flood risk listWD23 4NT: not on the flood risk listWD23 4NU: not on the flood risk listWD23 4NW: not on the flood risk listWD23 4NX: not on the flood risk listWD23 4NY: not on the flood risk listWD23 4PA: not on the flood risk listWD23 4PU: not on the flood risk listWD23 4PX: not on the flood risk listWD23 4PY: not on the flood risk listWD23 4PZ: not on the flood risk listWD23 4QA: not on the flood risk listWD23 4QB: not on the flood risk listWD23 4QD: not on the flood risk listWD23 4QE: not on the flood risk listWD23 4QF: not on the flood risk listWD23 4QG: not on the flood risk listWD23 4QH: not on the flood risk listWD23 4QJ: not on the flood risk listWD23 4QL: not on the flood risk listWD23 4QN: not on the flood risk listWD23 4QP: not on the flood risk listWD23 4QQ: not on the flood risk listWD23 4QS: not on the flood risk listWD23 4QT: not on the flood risk listWD23 4QW: not on the flood risk listWD23 4RA: not on the flood risk listWD23 4RD: not on the flood risk listWD23 4RE: not on the flood risk listWD23 4RF: not on the flood risk listWD23 4RG: not on the flood risk listWD23 4RH: not on the flood risk listWD23 4RN: not on the flood risk listWD23 4RP: not on the flood risk listWD23 4RQ: not on the flood risk listWD23 4RR: not on the flood risk listWD23 4RT: not on the flood risk listWD23 4RX: not on the flood risk listWD23 4SA: not on the flood risk listWD23 4SB: not on the flood risk listWD23 4SD: not on the flood risk listWD23 4SE: not on the flood risk listWD23 4SG: not on the flood risk listWD23 4SH: not on the flood risk listWD23 4SJ: not on the flood risk listWD23 4SL: not on the flood risk listWD23 4SN: not on the flood risk listWD23 4SP: not on the flood risk listWD23 4SQ: not on the flood risk listWD23 4SR: not on the flood risk listWD23 4SW: not on the flood risk listWD23 4TB: not on the flood risk listWD23 4TD: not on the flood risk listWD23 4TE: not on the flood risk listWD23 4TF: not on the flood risk listWD23 4TG: not on the flood risk listWD23 4TH: not on the flood risk listWD23 4TJ: not on the flood risk listWD23 4TU: not on the flood risk listWD23 4TW: not on the flood risk listWD23 4UA: not on the flood risk listWD23 4UB: not on the flood risk listWD23 4UD: not on the flood risk listWD23 4UF: not on the flood risk listWD23 4UG: not on the flood risk listWD23 4UH: not on the flood risk listWD23 4UJ: not on the flood risk listWD23 4UL: not on the flood risk listWD23 4UQ: not on the flood risk listWD23 4XA: not on the flood risk listWD23 4XF: not on the flood risk listWD23 4YF: not on the flood risk listWD23 4ZL: not on the flood risk listWD23 4FE: low flood risk at worstWD23 4NZ: low flood risk at worstWD23 4GP: medium flood risk at worstWD23 4QR: high flood risk Bushey Map of every postcode in the WD23 4 sector, by flood risk Of the 158 postcodes in the WD23 4 sector that ONS places, 1 have a home or business at high risk, 1 are at medium risk at worst, 2 are at low risk at worst and 154 are not on the Environment Agency's at-risk list. Places named: Bushey. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. M1A41 Bushey
  • A home or business at high risk: 1
  • At medium risk at worst: 1
  • At low risk at worst: 2
  • At very low risk only: 0
  • Not on the at-risk list: 154

Of the 158 postcodes in the WD23 4 sector that ONS places, 1 have a home or business at high risk, 1 are at medium risk at worst, 2 are at low risk at worst and 154 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.

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

The postcodes at high risk

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

WD23 4QR1 at high risk

What do homes sell for in WD23 4?

Homes in WD23 4 sold for a typical £560,000 in the 12 months to August 2026, across 59 sales, down 13.2% on the 12 months before, HM Land Registry's figures show.

£560,000 typical price, the 12 months to August 2026
£645,000 12 months to August 2025
▼ down 13.2% on the 12 months before
  • Detached £810,000 9 sales
  • Semi-detached £687,500 23 sales
  • Terraced £455,000 12 sales
  • Flat or maisonette £320,000 15 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 WD23 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 WD23 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.

WD23 4AAWD23 4ABWD23 4ADWD23 4AEWD23 4AFWD23 4AGWD23 4AHWD23 4AJWD23 4DNWD23 4DQWD23 4EBWD23 4EDWD23 4EEWD23 4EFWD23 4EGWD23 4EHWD23 4EJWD23 4ELWD23 4FAWD23 4FBWD23 4FEWD23 4FXWD23 4FYWD23 4FZWD23 4GAWD23 4GBWD23 4GDWD23 4GEWD23 4GFWD23 4GGWD23 4GHWD23 4GJWD23 4GLWD23 4GNWD23 4GPWD23 4GQWD23 4GRWD23 4GSWD23 4GTWD23 4HGWD23 4HHWD23 4HJWD23 4HLWD23 4HNWD23 4HPWD23 4HQWD23 4HRWD23 4HSWD23 4HTWD23 4HUWD23 4HWWD23 4HXWD23 4HYWD23 4HZWD23 4JAWD23 4JBWD23 4JDWD23 4JHWD23 4JPWD23 4JRWD23 4JSWD23 4JTWD23 4JUWD23 4JWWD23 4JXWD23 4JYWD23 4JZWD23 4LAWD23 4LBWD23 4LDWD23 4LEWD23 4LFWD23 4LGWD23 4LHWD23 4LJWD23 4LNWD23 4LPWD23 4LQWD23 4NNWD23 4NPWD23 4NQWD23 4NRWD23 4NSWD23 4NTWD23 4NUWD23 4NWWD23 4NXWD23 4NYWD23 4NZWD23 4PAWD23 4PUWD23 4PXWD23 4PYWD23 4PZWD23 4QAWD23 4QBWD23 4QDWD23 4QEWD23 4QFWD23 4QGWD23 4QHWD23 4QJWD23 4QLWD23 4QNWD23 4QPWD23 4QQWD23 4QRWD23 4QSWD23 4QTWD23 4QWWD23 4RAWD23 4RDWD23 4REWD23 4RFWD23 4RGWD23 4RHWD23 4RNWD23 4RPWD23 4RQWD23 4RRWD23 4RTWD23 4RXWD23 4SAWD23 4SBWD23 4SDWD23 4SEWD23 4SGWD23 4SHWD23 4SJWD23 4SLWD23 4SNWD23 4SPWD23 4SQWD23 4SRWD23 4SWWD23 4TBWD23 4TDWD23 4TEWD23 4TFWD23 4TGWD23 4THWD23 4TJWD23 4TUWD23 4TWWD23 4UAWD23 4UBWD23 4UDWD23 4UEWD23 4UFWD23 4UGWD23 4UHWD23 4UJWD23 4ULWD23 4UQWD23 4XAWD23 4XFWD23 4YFWD23 4ZL

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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