WD3 7 postcode sector in the WD3 district

WD3 7 is a sector of the WD3 district: every postcode that starts WD3 7. It has 95 postcodes in use, one of them a large-user postcode. 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 7 sector, by flood risk

Map of every postcode in the WD3 7 sector, by flood risk Of the 95 postcodes in the WD3 7 sector that ONS places, 1 are at low risk at worst and 94 are not on the Environment Agency's at-risk list. Places named: Rickmansworth Town, Penn & Mill End. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A412A404 WD3 7AL: not on the flood risk listWD3 7AN: not on the flood risk listWD3 7AP: not on the flood risk listWD3 7AR: not on the flood risk listWD3 7AT: not on the flood risk listWD3 7AU: not on the flood risk listWD3 7AW: not on the flood risk listWD3 7AX: not on the flood risk listWD3 7AY: not on the flood risk listWD3 7AZ: not on the flood risk listWD3 7BA: not on the flood risk listWD3 7BB: not on the flood risk listWD3 7BD: not on the flood risk listWD3 7BE: not on the flood risk listWD3 7BF: not on the flood risk listWD3 7BG: not on the flood risk listWD3 7BQ: not on the flood risk listWD3 7BT: not on the flood risk listWD3 7BU: not on the flood risk listWD3 7BX: not on the flood risk listWD3 7BY: not on the flood risk listWD3 7BZ: not on the flood risk listWD3 7DA: not on the flood risk listWD3 7DB: not on the flood risk listWD3 7DD: not on the flood risk listWD3 7DE: not on the flood risk listWD3 7DF: not on the flood risk listWD3 7DG: not on the flood risk listWD3 7DJ: not on the flood risk listWD3 7DL: not on the flood risk listWD3 7DN: not on the flood risk listWD3 7DQ: not on the flood risk listWD3 7DW: not on the flood risk listWD3 7DY: not on the flood risk listWD3 7DZ: not on the flood risk listWD3 7EE: not on the flood risk listWD3 7EG: not on the flood risk listWD3 7EH: not on the flood risk listWD3 7EJ: not on the flood risk listWD3 7EL: not on the flood risk listWD3 7EN: not on the flood risk listWD3 7EP: not on the flood risk listWD3 7EQ: not on the flood risk listWD3 7ER: not on the flood risk listWD3 7ES: not on the flood risk listWD3 7ET: not on the flood risk listWD3 7EU: not on the flood risk listWD3 7EW: not on the flood risk listWD3 7EX: not on the flood risk listWD3 7EY: not on the flood risk listWD3 7EZ: not on the flood risk listWD3 7FN: not on the flood risk listWD3 7GF: not on the flood risk listWD3 7HA: not on the flood risk listWD3 7HB: not on the flood risk listWD3 7HG: not on the flood risk listWD3 7HH: not on the flood risk listWD3 7HJ: not on the flood risk listWD3 7HL: not on the flood risk listWD3 7HN: not on the flood risk listWD3 7HP: not on the flood risk listWD3 7HQ: not on the flood risk listWD3 7HU: not on the flood risk listWD3 7HW: not on the flood risk listWD3 7NG: not on the flood risk listWD3 7NH: not on the flood risk listWD3 7NJ: not on the flood risk listWD3 7NL: not on the flood risk listWD3 7NN: not on the flood risk listWD3 7NP: not on the flood risk listWD3 7NQ: not on the flood risk listWD3 7NR: not on the flood risk listWD3 7NS: not on the flood risk listWD3 7NT: not on the flood risk listWD3 7NU: not on the flood risk listWD3 7NW: not on the flood risk listWD3 7NX: not on the flood risk listWD3 7NY: not on the flood risk listWD3 7NZ: not on the flood risk listWD3 7PA: not on the flood risk listWD3 7PB: not on the flood risk listWD3 7PD: not on the flood risk listWD3 7PE: not on the flood risk listWD3 7PF: not on the flood risk listWD3 7PG: not on the flood risk listWD3 7PH: not on the flood risk listWD3 7PJ: not on the flood risk listWD3 7PL: not on the flood risk listWD3 7PN: not on the flood risk listWD3 7PP: not on the flood risk listWD3 7PQ: not on the flood risk listWD3 7PR: not on the flood risk listWD3 7SX: not on the flood risk listWD3 7WX: not on the flood risk listWD3 7DH: low flood risk at worst Rickmansworth TownPenn & Mill End Map of every postcode in the WD3 7 sector, by flood risk Of the 95 postcodes in the WD3 7 sector that ONS places, 1 are at low risk at worst and 94 are not on the Environment Agency's at-risk list. Places named: Rickmansworth Town, Penn & Mill End. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Rickmansworth TownPenn & Mill End
  • A home or business at high risk: 0
  • At medium risk at worst: 0
  • At low risk at worst: 1
  • At very low risk only: 0
  • Not on the at-risk list: 94

Of the 95 postcodes in the WD3 7 sector that ONS places, 1 are at low risk at worst and 94 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. 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 WD3 7?

Homes in WD3 7 sold for a typical £935,000 in the 12 months to August 2026, across 31 sales, up 5.5% on the 12 months before, HM Land Registry's figures show.

£935,000 typical price, the 12 months to August 2026
£886,000 12 months to August 2025
▲ up 5.5% on the 12 months before
  • Detached £1,150,000 15 sales
  • Semi-detached £975,000 8 sales
  • Terraced 4 sales, too few to price
  • Flat or maisonette 4 sales, too few to price

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 WD3 7. 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

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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