HA4 7 postcode sector in the HA4 district

HA4 7 is a sector of the HA4 district: every postcode that starts HA4 7. It has 256 postcodes in use, 9 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 HA4 7 sector, by flood risk

Map of every postcode in the HA4 7 sector, by flood risk Of the 256 postcodes in the HA4 7 sector that ONS places, 22 have a home or business at high risk, 9 are at medium risk at worst, 20 are at low risk at worst and 205 are not on the Environment Agency's at-risk list. 3 groups of postcodes at high or medium risk are outlined: 12 postcodes at high or medium risk; 6 postcodes at high or medium risk; 5 postcodes at high or medium risk. Places named: Ruislip. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A4180 HA4 7AA: not on the flood risk listHA4 7AB: not on the flood risk listHA4 7AE: not on the flood risk listHA4 7AH: not on the flood risk listHA4 7AJ: not on the flood risk listHA4 7AN: not on the flood risk listHA4 7AQ: not on the flood risk listHA4 7AR: not on the flood risk listHA4 7AU: not on the flood risk listHA4 7AY: not on the flood risk listHA4 7AZ: not on the flood risk listHA4 7BA: not on the flood risk listHA4 7BD: not on the flood risk listHA4 7BH: not on the flood risk listHA4 7BJ: not on the flood risk listHA4 7BP: not on the flood risk listHA4 7BS: not on the flood risk listHA4 7BT: not on the flood risk listHA4 7BU: not on the flood risk listHA4 7BX: not on the flood risk listHA4 7BY: not on the flood risk listHA4 7BZ: not on the flood risk listHA4 7DA: not on the flood risk listHA4 7DB: not on the flood risk listHA4 7DD: not on the flood risk listHA4 7DF: not on the flood risk listHA4 7DG: not on the flood risk listHA4 7DH: not on the flood risk listHA4 7DJ: not on the flood risk listHA4 7DL: not on the flood risk listHA4 7DN: not on the flood risk listHA4 7DP: not on the flood risk listHA4 7DQ: not on the flood risk listHA4 7DR: not on the flood risk listHA4 7DS: not on the flood risk listHA4 7DT: not on the flood risk listHA4 7DU: not on the flood risk listHA4 7DX: not on the flood risk listHA4 7DY: not on the flood risk listHA4 7EA: not on the flood risk listHA4 7EB: not on the flood risk listHA4 7ED: not on the flood risk listHA4 7EE: not on the flood risk listHA4 7EF: not on the flood risk listHA4 7EH: not on the flood risk listHA4 7EJ: not on the flood risk listHA4 7EL: not on the flood risk listHA4 7EN: not on the flood risk listHA4 7EP: not on the flood risk listHA4 7EQ: not on the flood risk listHA4 7ER: not on the flood risk listHA4 7ES: not on the flood risk listHA4 7ET: not on the flood risk listHA4 7EU: not on the flood risk listHA4 7EW: not on the flood risk listHA4 7EX: not on the flood risk listHA4 7EY: not on the flood risk listHA4 7EZ: not on the flood risk listHA4 7GD: not on the flood risk listHA4 7GE: not on the flood risk listHA4 7GF: not on the flood risk listHA4 7GH: not on the flood risk listHA4 7GL: not on the flood risk listHA4 7GN: not on the flood risk listHA4 7HA: not on the flood risk listHA4 7HB: not on the flood risk listHA4 7HD: not on the flood risk listHA4 7HE: not on the flood risk listHA4 7HF: not on the flood risk listHA4 7HG: not on the flood risk listHA4 7HH: not on the flood risk listHA4 7HJ: not on the flood risk listHA4 7HN: not on the flood risk listHA4 7HQ: not on the flood risk listHA4 7HT: not on the flood risk listHA4 7HU: not on the flood risk listHA4 7HX: not on the flood risk listHA4 7HY: not on the flood risk listHA4 7HZ: not on the flood risk listHA4 7JA: not on the flood risk listHA4 7JB: not on the flood risk listHA4 7JD: not on the flood risk listHA4 7JE: not on the flood risk listHA4 7JF: not on the flood risk listHA4 7JG: not on the flood risk listHA4 7JH: not on the flood risk listHA4 7JJ: not on the flood risk listHA4 7JL: not on the flood risk listHA4 7JN: not on the flood risk listHA4 7JP: not on the flood risk listHA4 7JQ: not on the flood risk listHA4 7JR: not on the flood risk listHA4 7JW: not on the flood risk listHA4 7JY: not on the flood risk listHA4 7LA: not on the flood risk listHA4 7LB: not on the flood risk listHA4 7LD: not on the flood risk listHA4 7LE: not on the flood risk listHA4 7LF: not on the flood risk listHA4 7LH: not on the flood risk listHA4 7LJ: not on the flood risk listHA4 7LN: not on the flood risk listHA4 7LR: not on the flood risk listHA4 7LS: not on the flood risk listHA4 7LT: not on the flood risk listHA4 7LU: not on the flood risk listHA4 7LX: not on the flood risk listHA4 7LY: not on the flood risk listHA4 7LZ: not on the flood risk listHA4 7NA: not on the flood risk listHA4 7NE: not on the flood risk listHA4 7NF: not on the flood risk listHA4 7NP: not on the flood risk listHA4 7NR: not on the flood risk listHA4 7NS: not on the flood risk listHA4 7NT: not on the flood risk listHA4 7NU: not on the flood risk listHA4 7NX: not on the flood risk listHA4 7NY: not on the flood risk listHA4 7PB: not on the flood risk listHA4 7PE: not on the flood risk listHA4 7PF: not on the flood risk listHA4 7PH: not on the flood risk listHA4 7PN: not on the flood risk listHA4 7PP: not on the flood risk listHA4 7PR: not on the flood risk listHA4 7PS: not on the flood risk listHA4 7PW: not on the flood risk listHA4 7QD: not on the flood risk listHA4 7QL: not on the flood risk listHA4 7QN: not on the flood risk listHA4 7QP: not on the flood risk listHA4 7QR: not on the flood risk listHA4 7QS: not on the flood risk listHA4 7QT: not on the flood risk listHA4 7QU: not on the flood risk listHA4 7QW: not on the flood risk listHA4 7QX: not on the flood risk listHA4 7QZ: not on the flood risk listHA4 7RH: not on the flood risk listHA4 7RJ: not on the flood risk listHA4 7RL: not on the flood risk listHA4 7RN: not on the flood risk listHA4 7RP: not on the flood risk listHA4 7RQ: not on the flood risk listHA4 7RR: not on the flood risk listHA4 7RS: not on the flood risk listHA4 7RT: not on the flood risk listHA4 7RU: not on the flood risk listHA4 7RW: not on the flood risk listHA4 7RX: not on the flood risk listHA4 7RY: not on the flood risk listHA4 7SD: not on the flood risk listHA4 7SJ: not on the flood risk listHA4 7SN: not on the flood risk listHA4 7SP: not on the flood risk listHA4 7SQ: not on the flood risk listHA4 7SR: not on the flood risk listHA4 7SU: not on the flood risk listHA4 7SW: not on the flood risk listHA4 7TB: not on the flood risk listHA4 7TD: not on the flood risk listHA4 7TE: not on the flood risk listHA4 7TF: not on the flood risk listHA4 7TG: not on the flood risk listHA4 7TH: not on the flood risk listHA4 7TN: not on the flood risk listHA4 7TP: not on the flood risk listHA4 7TQ: not on the flood risk listHA4 7TR: not on the flood risk listHA4 7TS: not on the flood risk listHA4 7TT: not on the flood risk listHA4 7TU: not on the flood risk listHA4 7TX: not on the flood risk listHA4 7TZ: not on the flood risk listHA4 7UA: not on the flood risk listHA4 7UB: not on the flood risk listHA4 7UD: not on the flood risk listHA4 7UE: not on the flood risk listHA4 7UG: not on the flood risk listHA4 7UH: not on the flood risk listHA4 7UP: not on the flood risk listHA4 7UQ: not on the flood risk listHA4 7UR: not on the flood risk listHA4 7UU: not on the flood risk listHA4 7UW: not on the flood risk listHA4 7UX: not on the flood risk listHA4 7UY: not on the flood risk listHA4 7XF: not on the flood risk listHA4 7XL: not on the flood risk listHA4 7XN: not on the flood risk listHA4 7XP: not on the flood risk listHA4 7XT: not on the flood risk listHA4 7XU: not on the flood risk listHA4 7XW: not on the flood risk listHA4 7YE: not on the flood risk listHA4 7YF: not on the flood risk listHA4 7YG: not on the flood risk listHA4 7YH: not on the flood risk listHA4 7YL: not on the flood risk listHA4 7YN: not on the flood risk listHA4 7YP: not on the flood risk listHA4 7YU: not on the flood risk listHA4 7YX: not on the flood risk listHA4 7BE: low flood risk at worstHA4 7JS: low flood risk at worstHA4 7LW: low flood risk at worstHA4 7NB: low flood risk at worstHA4 7NZ: low flood risk at worstHA4 7PA: low flood risk at worstHA4 7PD: low flood risk at worstHA4 7PG: low flood risk at worstHA4 7QE: low flood risk at worstHA4 7SB: low flood risk at worstHA4 7SE: low flood risk at worstHA4 7ST: low flood risk at worstHA4 7SX: low flood risk at worstHA4 7TJ: low flood risk at worstHA4 7TL: low flood risk at worstHA4 7TW: low flood risk at worstHA4 7UZ: low flood risk at worstHA4 7XA: low flood risk at worstHA4 7XB: low flood risk at worstHA4 7XD: low flood risk at worstHA4 7PL: medium flood risk at worstHA4 7QB: medium flood risk at worstHA4 7QH: medium flood risk at worstHA4 7QY: medium flood risk at worstHA4 7RA: medium flood risk at worstHA4 7RE: medium flood risk at worstHA4 7RF: medium flood risk at worstHA4 7SS: medium flood risk at worstHA4 7UT: medium flood risk at worstHA4 7JT: high flood riskHA4 7JZ: high flood riskHA4 7LP: high flood riskHA4 7ND: high flood riskHA4 7PJ: high flood riskHA4 7PQ: high flood riskHA4 7QF: high flood riskHA4 7QG: high flood riskHA4 7QJ: high flood riskHA4 7QQ: high flood riskHA4 7RD: high flood riskHA4 7RG: high flood riskHA4 7RZ: high flood riskHA4 7SA: high flood riskHA4 7TY: high flood riskHA4 7UJ: high flood riskHA4 7UL: high flood riskHA4 7UN: high flood riskHA4 7XR: high flood riskHA4 7XS: high flood riskHA4 7YJ: high flood riskHA4 7YW: high flood risk Ruislip 12 postcodes at high or medium risk, outlined: this goes to HA4 7YJ, the one with most homes and businesses at high risk12 postcodes at high or medium risk6 postcodes at high or medium risk, outlined: this goes to HA4 7XS, the one with most homes and businesses at high risk6 postcodes at high or medium risk5 postcodes at high or medium risk, outlined: this goes to HA4 7ND, the one with most homes and businesses at high risk5 postcodes at high or medium risk Map of every postcode in the HA4 7 sector, by flood risk Of the 256 postcodes in the HA4 7 sector that ONS places, 22 have a home or business at high risk, 9 are at medium risk at worst, 20 are at low risk at worst and 205 are not on the Environment Agency's at-risk list. 3 groups of postcodes at high or medium risk are outlined: 12 postcodes at high or medium risk; 6 postcodes at high or medium risk; 5 postcodes at high or medium risk. Places named: Ruislip. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Ruislip
  • A home or business at high risk: 22
  • At medium risk at worst: 9
  • At low risk at worst: 20
  • At very low risk only: 0
  • Not on the at-risk list: 205
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 256 postcodes in the HA4 7 sector that ONS places, 22 have a home or business at high risk, 9 are at medium risk at worst, 20 are at low risk at worst and 205 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 150 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode. 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

The postcodes at high risk

22 postcodes here have a home or business at high risk. These are the 12 with the most homes and businesses at that risk.

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

HA4 7XS12 at high riskHA4 7UL11 at high riskHA4 7ND11 at high riskHA4 7XR10 at high riskHA4 7UJ10 at high riskHA4 7QF8 at high riskHA4 7QG8 at high riskHA4 7JZ7 at high riskHA4 7PQ6 at high riskHA4 7QJ5 at high riskHA4 7YJ4 at high riskHA4 7RG3 at high risk

Where the postcodes at high or medium risk lie together

  • 12 postcodes at high or medium risk, outlined on the map. HA4 7YJ, is the one with most homes and businesses at high risk.
  • 6 postcodes at high or medium risk, outlined on the map. HA4 7XS, is the one with most homes and businesses at high risk.
  • 5 postcodes at high or medium risk, outlined on the map. HA4 7ND, is the one with most homes and businesses at high risk.

What do homes sell for in HA4 7?

Homes in HA4 7 sold for a typical £575,000 in the 12 months to August 2026, across 97 sales, down 15.4% on the 12 months before, HM Land Registry's figures show.

£575,000 typical price, the 12 months to August 2026
£680,000 12 months to August 2025
▼ down 15.4% on the 12 months before
  • Detached £842,500 34 sales
  • Semi-detached £660,000 23 sales
  • Terraced £455,000 13 sales
  • Flat or maisonette £340,000 27 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 HA4 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

Postcodes in HA4 7

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.

HA4 7AAHA4 7ABHA4 7AEHA4 7AHHA4 7AJHA4 7ANHA4 7AQHA4 7ARHA4 7AUHA4 7AYHA4 7AZHA4 7BAHA4 7BDHA4 7BEHA4 7BHHA4 7BJHA4 7BPHA4 7BSHA4 7BTHA4 7BUHA4 7BXHA4 7BYHA4 7BZHA4 7DAHA4 7DBHA4 7DDHA4 7DFHA4 7DGHA4 7DHHA4 7DJHA4 7DLHA4 7DNHA4 7DPHA4 7DQHA4 7DRHA4 7DSHA4 7DTHA4 7DUHA4 7DWHA4 7DXHA4 7DYHA4 7EAHA4 7EBHA4 7EDHA4 7EEHA4 7EFHA4 7EHHA4 7EJHA4 7ELHA4 7ENHA4 7EPHA4 7EQHA4 7ERHA4 7ESHA4 7ETHA4 7EUHA4 7EWHA4 7EXHA4 7EYHA4 7EZHA4 7GDHA4 7GEHA4 7GFHA4 7GHHA4 7GLHA4 7GNHA4 7HAHA4 7HBHA4 7HDHA4 7HEHA4 7HFHA4 7HGHA4 7HHHA4 7HJHA4 7HNHA4 7HQHA4 7HTHA4 7HUHA4 7HXHA4 7HYHA4 7HZHA4 7JAHA4 7JBHA4 7JDHA4 7JEHA4 7JFHA4 7JGHA4 7JHHA4 7JJHA4 7JLHA4 7JNHA4 7JPHA4 7JQHA4 7JRHA4 7JSHA4 7JTHA4 7JWHA4 7JYHA4 7JZHA4 7LAHA4 7LBHA4 7LDHA4 7LEHA4 7LFHA4 7LHHA4 7LJHA4 7LNHA4 7LPHA4 7LRHA4 7LSHA4 7LTHA4 7LUHA4 7LWHA4 7LXHA4 7LYHA4 7LZHA4 7NAHA4 7NBHA4 7NDHA4 7NEHA4 7NFHA4 7NPHA4 7NRHA4 7NSHA4 7NTHA4 7NUHA4 7NXHA4 7NYHA4 7NZHA4 7PAHA4 7PBHA4 7PDHA4 7PEHA4 7PFHA4 7PGHA4 7PHHA4 7PJHA4 7PLHA4 7PNHA4 7PPHA4 7PQHA4 7PRHA4 7PSHA4 7PWHA4 7QBHA4 7QDHA4 7QEHA4 7QFHA4 7QGHA4 7QHHA4 7QJHA4 7QLHA4 7QNHA4 7QPHA4 7QQHA4 7QRHA4 7QSHA4 7QTHA4 7QUHA4 7QWHA4 7QXHA4 7QYHA4 7QZHA4 7RAHA4 7RDHA4 7REHA4 7RFHA4 7RGHA4 7RHHA4 7RJHA4 7RLHA4 7RNHA4 7RPHA4 7RQHA4 7RRHA4 7RSHA4 7RTHA4 7RUHA4 7RWHA4 7RXHA4 7RYHA4 7RZHA4 7SAHA4 7SBHA4 7SDHA4 7SEHA4 7SJHA4 7SNHA4 7SPHA4 7SQHA4 7SRHA4 7SSHA4 7STHA4 7SUHA4 7SWHA4 7SXHA4 7TBHA4 7TDHA4 7TEHA4 7TFHA4 7TGHA4 7THHA4 7TJHA4 7TLHA4 7TNHA4 7TPHA4 7TQHA4 7TRHA4 7TSHA4 7TTHA4 7TUHA4 7TWHA4 7TXHA4 7TYHA4 7TZHA4 7UAHA4 7UBHA4 7UDHA4 7UEHA4 7UGHA4 7UHHA4 7UJHA4 7ULHA4 7UNHA4 7UPHA4 7UQHA4 7URHA4 7UTHA4 7UUHA4 7UWHA4 7UXHA4 7UYHA4 7UZHA4 7XAHA4 7XBHA4 7XDHA4 7XFHA4 7XLHA4 7XNHA4 7XPHA4 7XRHA4 7XSHA4 7XTHA4 7XUHA4 7XWHA4 7YEHA4 7YFHA4 7YGHA4 7YHHA4 7YJHA4 7YLHA4 7YNHA4 7YPHA4 7YUHA4 7YWHA4 7YX

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.

Check a postcode

Something wrong on this page? Report an error and we will check it against the source.