WD17 1 postcode sector in the WD17 district

WD17 1 is a sector of the WD17 district: every postcode that starts WD17 1. It has 106 postcodes in use, 22 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 WD17 1 sector, by flood risk

Map of every postcode in the WD17 1 sector, by flood risk Of the 106 postcodes in the WD17 1 sector that ONS places, 106 are not on the Environment Agency's at-risk list. Places named: Watford. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A4178 WD17 1AA: not on the flood risk listWD17 1AD: not on the flood risk listWD17 1AH: not on the flood risk listWD17 1AP: not on the flood risk listWD17 1AR: not on the flood risk listWD17 1AU: not on the flood risk listWD17 1AW: not on the flood risk listWD17 1AY: not on the flood risk listWD17 1AZ: not on the flood risk listWD17 1BA: not on the flood risk listWD17 1BH: not on the flood risk listWD17 1BJ: not on the flood risk listWD17 1BN: not on the flood risk listWD17 1BP: not on the flood risk listWD17 1BS: not on the flood risk listWD17 1BU: not on the flood risk listWD17 1BY: not on the flood risk listWD17 1BZ: not on the flood risk listWD17 1DA: not on the flood risk listWD17 1DB: not on the flood risk listWD17 1DD: not on the flood risk listWD17 1DF: not on the flood risk listWD17 1DG: not on the flood risk listWD17 1DH: not on the flood risk listWD17 1DJ: not on the flood risk listWD17 1DS: not on the flood risk listWD17 1DT: not on the flood risk listWD17 1DU: not on the flood risk listWD17 1DY: not on the flood risk listWD17 1EA: not on the flood risk listWD17 1EE: not on the flood risk listWD17 1EG: not on the flood risk listWD17 1ES: not on the flood risk listWD17 1ET: not on the flood risk listWD17 1HE: not on the flood risk listWD17 1HP: not on the flood risk listWD17 1JA: not on the flood risk listWD17 1JJ: not on the flood risk listWD17 1JR: not on the flood risk listWD17 1JU: not on the flood risk listWD17 1JW: not on the flood risk listWD17 1JY: not on the flood risk listWD17 1JZ: not on the flood risk listWD17 1LA: not on the flood risk listWD17 1LB: not on the flood risk listWD17 1LJ: not on the flood risk listWD17 1LN: not on the flood risk listWD17 1LQ: not on the flood risk listWD17 1LS: not on the flood risk listWD17 1LU: not on the flood risk listWD17 1NA: not on the flood risk listWD17 1NB: not on the flood risk listWD17 1ND: not on the flood risk listWD17 1NJ: not on the flood risk listWD17 1NN: not on the flood risk listWD17 1NP: not on the flood risk listWD17 1PA: not on the flood risk listWD17 1PB: not on the flood risk listWD17 1PD: not on the flood risk listWD17 1PE: not on the flood risk listWD17 1PG: not on the flood risk listWD17 1PT: not on the flood risk listWD17 1PU: not on the flood risk listWD17 1PW: not on the flood risk listWD17 1PY: not on the flood risk listWD17 1PZ: not on the flood risk listWD17 1QA: not on the flood risk listWD17 1QB: not on the flood risk listWD17 1QD: not on the flood risk listWD17 1QE: not on the flood risk listWD17 1QF: not on the flood risk listWD17 1QG: not on the flood risk listWD17 1QL: not on the flood risk listWD17 1QN: not on the flood risk listWD17 1QQ: not on the flood risk listWD17 1QR: not on the flood risk listWD17 1QS: not on the flood risk listWD17 1QT: not on the flood risk listWD17 1QU: not on the flood risk listWD17 1QW: not on the flood risk listWD17 1QX: not on the flood risk listWD17 1RA: not on the flood risk listWD17 1RB: not on the flood risk listWD17 1RD: not on the flood risk listWD17 1RL: not on the flood risk listWD17 1RN: not on the flood risk listWD17 1RP: not on the flood risk listWD17 1RT: not on the flood risk listWD17 1RY: not on the flood risk listWD17 1SJ: not on the flood risk listWD17 1SZ: not on the flood risk listWD17 1TB: not on the flood risk listWD17 1TX: not on the flood risk listWD17 1UE: not on the flood risk list Watford Map of every postcode in the WD17 1 sector, by flood risk Of the 106 postcodes in the WD17 1 sector that ONS places, 106 are not on the Environment Agency's at-risk list. Places named: Watford. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Watford
  • 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: 106

Of the 106 postcodes in the WD17 1 sector that ONS places, 106 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

What do homes sell for in WD17 1?

Homes in WD17 1 sold for a typical £287,200 in the 12 months to August 2026, across 19 sales, down 26.2% on the 12 months before, HM Land Registry's figures show.

£287,200 typical price, the 12 months to August 2026
£389,000 12 months to August 2025
▼ down 26.2% on the 12 months before
  • Semi-detached 2 sales, too few to price
  • Terraced 4 sales, too few to price
  • Flat or maisonette £265,000 13 sales

Standard sales of homes at market value at the postcodes that start WD17 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 WD17 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.

WD17 1AAWD17 1ADWD17 1AHWD17 1APWD17 1ARWD17 1AUWD17 1AWWD17 1AYWD17 1AZWD17 1BAWD17 1BDWD17 1BHWD17 1BJWD17 1BNWD17 1BPWD17 1BQWD17 1BSWD17 1BUWD17 1BWWD17 1BYWD17 1BZWD17 1DAWD17 1DBWD17 1DDWD17 1DEWD17 1DFWD17 1DGWD17 1DHWD17 1DJWD17 1DNWD17 1DQWD17 1DSWD17 1DTWD17 1DUWD17 1DYWD17 1EAWD17 1EEWD17 1EGWD17 1ESWD17 1ETWD17 1GAWD17 1HEWD17 1HPWD17 1HXWD17 1JAWD17 1JJWD17 1JRWD17 1JTWD17 1JUWD17 1JWWD17 1JYWD17 1JZWD17 1LAWD17 1LBWD17 1LDWD17 1LJWD17 1LNWD17 1LQWD17 1LSWD17 1LUWD17 1NAWD17 1NBWD17 1NDWD17 1NJWD17 1NNWD17 1NPWD17 1PAWD17 1PBWD17 1PDWD17 1PEWD17 1PGWD17 1PTWD17 1PUWD17 1PWWD17 1PYWD17 1PZWD17 1QAWD17 1QBWD17 1QDWD17 1QEWD17 1QFWD17 1QGWD17 1QLWD17 1QNWD17 1QQWD17 1QRWD17 1QSWD17 1QTWD17 1QUWD17 1QWWD17 1QXWD17 1RAWD17 1RBWD17 1RDWD17 1RLWD17 1RNWD17 1RPWD17 1RTWD17 1RYWD17 1SJWD17 1SZWD17 1TBWD17 1TXWD17 1UEWD17 1XLWD17 1ZG

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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