WD3 9 postcode sector in the WD3 district

WD3 9 is a sector of the WD3 district: every postcode that starts WD3 9. It has 74 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 9 sector, by flood risk

Map of every postcode in the WD3 9 sector, by flood risk Of the 74 postcodes in the WD3 9 sector that ONS places, 6 have a home or business at high risk, 4 are at medium risk at worst, 4 are at low risk at worst, 2 are at very low risk only and 58 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 5 postcodes at high or medium risk. Places named: Maple Cross. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. M25A412 WD3 9AA: not on the flood risk listWD3 9AE: not on the flood risk listWD3 9AF: not on the flood risk listWD3 9AG: not on the flood risk listWD3 9GA: not on the flood risk listWD3 9RE: not on the flood risk listWD3 9RF: not on the flood risk listWD3 9RN: not on the flood risk listWD3 9RP: not on the flood risk listWD3 9RQ: not on the flood risk listWD3 9SD: not on the flood risk listWD3 9SE: not on the flood risk listWD3 9SF: not on the flood risk listWD3 9SL: not on the flood risk listWD3 9SP: not on the flood risk listWD3 9SR: not on the flood risk listWD3 9SS: not on the flood risk listWD3 9ST: not on the flood risk listWD3 9SU: not on the flood risk listWD3 9SY: not on the flood risk listWD3 9TA: not on the flood risk listWD3 9TB: not on the flood risk listWD3 9TD: not on the flood risk listWD3 9TE: not on the flood risk listWD3 9TF: not on the flood risk listWD3 9TG: not on the flood risk listWD3 9TH: not on the flood risk listWD3 9TJ: not on the flood risk listWD3 9TL: not on the flood risk listWD3 9TN: not on the flood risk listWD3 9TP: not on the flood risk listWD3 9TQ: not on the flood risk listWD3 9TR: not on the flood risk listWD3 9TS: not on the flood risk listWD3 9TT: not on the flood risk listWD3 9TU: not on the flood risk listWD3 9TW: not on the flood risk listWD3 9TX: not on the flood risk listWD3 9TY: not on the flood risk listWD3 9TZ: not on the flood risk listWD3 9UA: not on the flood risk listWD3 9UB: not on the flood risk listWD3 9UD: not on the flood risk listWD3 9UE: not on the flood risk listWD3 9UF: not on the flood risk listWD3 9UH: not on the flood risk listWD3 9UJ: not on the flood risk listWD3 9UL: not on the flood risk listWD3 9UQ: not on the flood risk listWD3 9XD: not on the flood risk listWD3 9XG: not on the flood risk listWD3 9XH: not on the flood risk listWD3 9XL: not on the flood risk listWD3 9XN: not on the flood risk listWD3 9XP: not on the flood risk listWD3 9XQ: not on the flood risk listWD3 9XW: not on the flood risk listWD3 9YZ: not on the flood risk listWD3 9SN: very low flood risk onlyWD3 9YS: very low flood risk onlyWD3 9AD: low flood risk at worstWD3 9XR: low flood risk at worstWD3 9XZ: low flood risk at worstWD3 9YA: low flood risk at worstWD3 9WZ: medium flood risk at worstWD3 9XT: medium flood risk at worstWD3 9XU: medium flood risk at worstWD3 9XX: medium flood risk at worstWD3 9SQ: high flood riskWD3 9XJ: high flood riskWD3 9XS: high flood riskWD3 9XY: high flood riskWD3 9YB: high flood riskWD3 9YD: high flood risk Maple Cross 5 postcodes at high or medium risk, outlined: this goes to WD3 9XY, the one with most homes and businesses at high risk5 postcodes at high or medium risk Map of every postcode in the WD3 9 sector, by flood risk Of the 74 postcodes in the WD3 9 sector that ONS places, 6 have a home or business at high risk, 4 are at medium risk at worst, 4 are at low risk at worst, 2 are at very low risk only and 58 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 5 postcodes at high or medium risk. Places named: Maple Cross. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. M25 Maple Cross
  • A home or business at high risk: 6
  • At medium risk at worst: 4
  • At low risk at worst: 4
  • At very low risk only: 2
  • Not on the at-risk list: 58
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 74 postcodes in the WD3 9 sector that ONS places, 6 have a home or business at high risk, 4 are at medium risk at worst, 4 are at low risk at worst, 2 are at very low risk only and 58 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. A dashed outline shows where 5 or more lie within 160 metres of each other. It is not a boundary, and 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

The postcodes at high risk

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

WD3 9SQ10 at high riskWD3 9XY3 at high riskWD3 9YB2 at high riskWD3 9XJ2 at high riskWD3 9XS1 at high riskWD3 9YD1 at high risk

Where the postcodes at high or medium risk lie together

  • 5 postcodes at high or medium risk, outlined on the map. WD3 9XY, is the one with most homes and businesses at high risk.

What do homes sell for in WD3 9?

Homes in WD3 9 sold for a typical £465,000 in the 12 months to August 2026, across 29 sales, up 1.6% on the 12 months before, HM Land Registry's figures show.

£465,000 typical price, the 12 months to August 2026
£457,500 12 months to August 2025
▲ up 1.6% on the 12 months before
  • Detached 4 sales, too few to price
  • Semi-detached £533,750 12 sales
  • Terraced £381,250 12 sales
  • Flat or maisonette 1 sale, 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 9. 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 9

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 9AAWD3 9ADWD3 9AEWD3 9AFWD3 9AGWD3 9GAWD3 9REWD3 9RFWD3 9RNWD3 9RPWD3 9RQWD3 9SDWD3 9SEWD3 9SFWD3 9SLWD3 9SNWD3 9SPWD3 9SQWD3 9SRWD3 9SSWD3 9STWD3 9SUWD3 9SYWD3 9TAWD3 9TBWD3 9TDWD3 9TEWD3 9TFWD3 9TGWD3 9THWD3 9TJWD3 9TLWD3 9TNWD3 9TPWD3 9TQWD3 9TRWD3 9TSWD3 9TTWD3 9TUWD3 9TWWD3 9TXWD3 9TYWD3 9TZWD3 9UAWD3 9UBWD3 9UDWD3 9UEWD3 9UFWD3 9UHWD3 9UJWD3 9ULWD3 9UQWD3 9WZWD3 9XDWD3 9XGWD3 9XHWD3 9XJWD3 9XLWD3 9XNWD3 9XPWD3 9XQWD3 9XRWD3 9XSWD3 9XTWD3 9XUWD3 9XWWD3 9XXWD3 9XYWD3 9XZWD3 9YAWD3 9YBWD3 9YDWD3 9YSWD3 9YZ

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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