HA5 1 postcode sector in the HA5 district

HA5 1 is a sector of the HA5 district: every postcode that starts HA5 1. It has 186 postcodes in use, 3 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 HA5 1 sector, by flood risk

Map of every postcode in the HA5 1 sector, by flood risk Of the 186 postcodes in the HA5 1 sector that ONS places, 7 have a home or business at high risk, 10 are at medium risk at worst, 12 are at low risk at worst, 4 are at very low risk only and 153 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 14 postcodes at high or medium risk. Places named: Pinner South, Eastcote. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. HA5 1AB: not on the flood risk listHA5 1AE: not on the flood risk listHA5 1AF: not on the flood risk listHA5 1AG: not on the flood risk listHA5 1AH: not on the flood risk listHA5 1AJ: not on the flood risk listHA5 1AL: not on the flood risk listHA5 1AN: not on the flood risk listHA5 1AP: not on the flood risk listHA5 1AQ: not on the flood risk listHA5 1AR: not on the flood risk listHA5 1AT: not on the flood risk listHA5 1AU: not on the flood risk listHA5 1AX: not on the flood risk listHA5 1AY: not on the flood risk listHA5 1AZ: not on the flood risk listHA5 1BA: not on the flood risk listHA5 1BH: not on the flood risk listHA5 1BL: not on the flood risk listHA5 1BN: not on the flood risk listHA5 1BP: not on the flood risk listHA5 1BS: not on the flood risk listHA5 1BW: not on the flood risk listHA5 1BZ: not on the flood risk listHA5 1DA: not on the flood risk listHA5 1DB: not on the flood risk listHA5 1DD: not on the flood risk listHA5 1DE: not on the flood risk listHA5 1DF: not on the flood risk listHA5 1DG: not on the flood risk listHA5 1DQ: not on the flood risk listHA5 1DX: not on the flood risk listHA5 1EB: not on the flood risk listHA5 1EF: not on the flood risk listHA5 1EP: not on the flood risk listHA5 1ER: not on the flood risk listHA5 1ES: not on the flood risk listHA5 1ET: not on the flood risk listHA5 1EU: not on the flood risk listHA5 1EX: not on the flood risk listHA5 1EY: not on the flood risk listHA5 1EZ: not on the flood risk listHA5 1FA: not on the flood risk listHA5 1FB: not on the flood risk listHA5 1HE: not on the flood risk listHA5 1HP: not on the flood risk listHA5 1HR: not on the flood risk listHA5 1HU: not on the flood risk listHA5 1HW: not on the flood risk listHA5 1HX: not on the flood risk listHA5 1HY: not on the flood risk listHA5 1HZ: not on the flood risk listHA5 1JA: not on the flood risk listHA5 1JB: not on the flood risk listHA5 1JD: not on the flood risk listHA5 1JE: not on the flood risk listHA5 1JF: not on the flood risk listHA5 1JG: not on the flood risk listHA5 1JJ: not on the flood risk listHA5 1JN: not on the flood risk listHA5 1JP: not on the flood risk listHA5 1JQ: not on the flood risk listHA5 1JR: not on the flood risk listHA5 1JS: not on the flood risk listHA5 1JT: not on the flood risk listHA5 1JY: not on the flood risk listHA5 1JZ: not on the flood risk listHA5 1LA: not on the flood risk listHA5 1LB: not on the flood risk listHA5 1LD: not on the flood risk listHA5 1LE: not on the flood risk listHA5 1LF: not on the flood risk listHA5 1LG: not on the flood risk listHA5 1LH: not on the flood risk listHA5 1LJ: not on the flood risk listHA5 1LL: not on the flood risk listHA5 1LN: not on the flood risk listHA5 1LQ: not on the flood risk listHA5 1LX: not on the flood risk listHA5 1LY: not on the flood risk listHA5 1LZ: not on the flood risk listHA5 1NA: not on the flood risk listHA5 1NB: not on the flood risk listHA5 1NE: not on the flood risk listHA5 1NF: not on the flood risk listHA5 1NG: not on the flood risk listHA5 1NH: not on the flood risk listHA5 1NJ: not on the flood risk listHA5 1NL: not on the flood risk listHA5 1NN: not on the flood risk listHA5 1NP: not on the flood risk listHA5 1NQ: not on the flood risk listHA5 1NR: not on the flood risk listHA5 1NS: not on the flood risk listHA5 1NT: not on the flood risk listHA5 1NU: not on the flood risk listHA5 1NW: not on the flood risk listHA5 1PD: not on the flood risk listHA5 1PE: not on the flood risk listHA5 1PF: not on the flood risk listHA5 1PG: not on the flood risk listHA5 1PH: not on the flood risk listHA5 1PJ: not on the flood risk listHA5 1PL: not on the flood risk listHA5 1PN: not on the flood risk listHA5 1PP: not on the flood risk listHA5 1PQ: not on the flood risk listHA5 1PR: not on the flood risk listHA5 1PS: not on the flood risk listHA5 1PT: not on the flood risk listHA5 1PU: not on the flood risk listHA5 1PW: not on the flood risk listHA5 1PX: not on the flood risk listHA5 1PY: not on the flood risk listHA5 1QG: not on the flood risk listHA5 1QH: not on the flood risk listHA5 1QL: not on the flood risk listHA5 1QR: not on the flood risk listHA5 1QZ: not on the flood risk listHA5 1RD: not on the flood risk listHA5 1RF: not on the flood risk listHA5 1RH: not on the flood risk listHA5 1RJ: not on the flood risk listHA5 1RL: not on the flood risk listHA5 1RP: not on the flood risk listHA5 1SH: not on the flood risk listHA5 1SJ: not on the flood risk listHA5 1SL: not on the flood risk listHA5 1SN: not on the flood risk listHA5 1SP: not on the flood risk listHA5 1SR: not on the flood risk listHA5 1SS: not on the flood risk listHA5 1ST: not on the flood risk listHA5 1SU: not on the flood risk listHA5 1SW: not on the flood risk listHA5 1SX: not on the flood risk listHA5 1SZ: not on the flood risk listHA5 1TA: not on the flood risk listHA5 1TB: not on the flood risk listHA5 1TG: not on the flood risk listHA5 1TJ: not on the flood risk listHA5 1TL: not on the flood risk listHA5 1TN: not on the flood risk listHA5 1TP: not on the flood risk listHA5 1TR: not on the flood risk listHA5 1TS: not on the flood risk listHA5 1TT: not on the flood risk listHA5 1TU: not on the flood risk listHA5 1TW: not on the flood risk listHA5 1TX: not on the flood risk listHA5 1TY: not on the flood risk listHA5 1TZ: not on the flood risk listHA5 1UA: not on the flood risk listHA5 1AS: very low flood risk onlyHA5 1BJ: very low flood risk onlyHA5 1BT: very low flood risk onlyHA5 1HB: very low flood risk onlyHA5 1BU: low flood risk at worstHA5 1BX: low flood risk at worstHA5 1DH: low flood risk at worstHA5 1DT: low flood risk at worstHA5 1DY: low flood risk at worstHA5 1DZ: low flood risk at worstHA5 1ED: low flood risk at worstHA5 1EG: low flood risk at worstHA5 1EQ: low flood risk at worstHA5 1EW: low flood risk at worstHA5 1JH: low flood risk at worstHA5 1JU: low flood risk at worstHA5 1BB: medium flood risk at worstHA5 1DS: medium flood risk at worstHA5 1EA: medium flood risk at worstHA5 1EE: medium flood risk at worstHA5 1EH: medium flood risk at worstHA5 1EJ: medium flood risk at worstHA5 1EN: medium flood risk at worstHA5 1HH: medium flood risk at worstHA5 1HL: medium flood risk at worstHA5 1JX: medium flood risk at worstHA5 1AA: high flood riskHA5 1BY: high flood riskHA5 1DU: high flood riskHA5 1EL: high flood riskHA5 1HF: high flood riskHA5 1HJ: high flood riskHA5 1HN: high flood risk Pinner SouthEastcote 14 postcodes at high or medium risk, outlined: this goes to HA5 1EL, the one with most homes and businesses at high risk14 postcodes at high or medium risk Map of every postcode in the HA5 1 sector, by flood risk Of the 186 postcodes in the HA5 1 sector that ONS places, 7 have a home or business at high risk, 10 are at medium risk at worst, 12 are at low risk at worst, 4 are at very low risk only and 153 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 14 postcodes at high or medium risk. Places named: Pinner South, Eastcote. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Pinner SouthEastcote
  • A home or business at high risk: 7
  • At medium risk at worst: 10
  • At low risk at worst: 12
  • At very low risk only: 4
  • Not on the at-risk list: 153
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 186 postcodes in the HA5 1 sector that ONS places, 7 have a home or business at high risk, 10 are at medium risk at worst, 12 are at low risk at worst, 4 are at very low risk only and 153 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. 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

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

HA5 1EL8 at high riskHA5 1HJ5 at high riskHA5 1AA4 at high riskHA5 1HN1 at high riskHA5 1DU1 at high riskHA5 1BY1 at high riskHA5 1HF1 at high risk

Where the postcodes at high or medium risk lie together

  • 14 postcodes at high or medium risk, outlined on the map. HA5 1EL, is the one with most homes and businesses at high risk.

What do homes sell for in HA5 1?

Homes in HA5 1 sold for a typical £747,500 in the 12 months to August 2026, across 60 sales, down 2.9% on the 12 months before, HM Land Registry's figures show.

£747,500 typical price, the 12 months to August 2026
£770,000 12 months to August 2025
▼ down 2.9% on the 12 months before
  • Detached £1,235,000 9 sales
  • Semi-detached £762,000 35 sales
  • Terraced £833,500 8 sales
  • Flat or maisonette £405,000 8 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 HA5 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 HA5 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.

HA5 1AAHA5 1ABHA5 1AEHA5 1AFHA5 1AGHA5 1AHHA5 1AJHA5 1ALHA5 1ANHA5 1APHA5 1AQHA5 1ARHA5 1ASHA5 1ATHA5 1AUHA5 1AXHA5 1AYHA5 1AZHA5 1BAHA5 1BBHA5 1BHHA5 1BJHA5 1BLHA5 1BNHA5 1BPHA5 1BSHA5 1BTHA5 1BUHA5 1BWHA5 1BXHA5 1BYHA5 1BZHA5 1DAHA5 1DBHA5 1DDHA5 1DEHA5 1DFHA5 1DGHA5 1DHHA5 1DQHA5 1DSHA5 1DTHA5 1DUHA5 1DXHA5 1DYHA5 1DZHA5 1EAHA5 1EBHA5 1EDHA5 1EEHA5 1EFHA5 1EGHA5 1EHHA5 1EJHA5 1ELHA5 1ENHA5 1EPHA5 1EQHA5 1ERHA5 1ESHA5 1ETHA5 1EUHA5 1EWHA5 1EXHA5 1EYHA5 1EZHA5 1FAHA5 1FBHA5 1HBHA5 1HEHA5 1HFHA5 1HHHA5 1HJHA5 1HLHA5 1HNHA5 1HPHA5 1HRHA5 1HUHA5 1HWHA5 1HXHA5 1HYHA5 1HZHA5 1JAHA5 1JBHA5 1JDHA5 1JEHA5 1JFHA5 1JGHA5 1JHHA5 1JJHA5 1JNHA5 1JPHA5 1JQHA5 1JRHA5 1JSHA5 1JTHA5 1JUHA5 1JXHA5 1JYHA5 1JZHA5 1LAHA5 1LBHA5 1LDHA5 1LEHA5 1LFHA5 1LGHA5 1LHHA5 1LJHA5 1LLHA5 1LNHA5 1LQHA5 1LXHA5 1LYHA5 1LZHA5 1NAHA5 1NBHA5 1NEHA5 1NFHA5 1NGHA5 1NHHA5 1NJHA5 1NLHA5 1NNHA5 1NPHA5 1NQHA5 1NRHA5 1NSHA5 1NTHA5 1NUHA5 1NWHA5 1PDHA5 1PEHA5 1PFHA5 1PGHA5 1PHHA5 1PJHA5 1PLHA5 1PNHA5 1PPHA5 1PQHA5 1PRHA5 1PSHA5 1PTHA5 1PUHA5 1PWHA5 1PXHA5 1PYHA5 1QGHA5 1QHHA5 1QLHA5 1QRHA5 1QZHA5 1RDHA5 1RFHA5 1RHHA5 1RJHA5 1RLHA5 1RPHA5 1SHHA5 1SJHA5 1SLHA5 1SNHA5 1SPHA5 1SRHA5 1SSHA5 1STHA5 1SUHA5 1SWHA5 1SXHA5 1SZHA5 1TAHA5 1TBHA5 1TGHA5 1TJHA5 1TLHA5 1TNHA5 1TPHA5 1TRHA5 1TSHA5 1TTHA5 1TUHA5 1TWHA5 1TXHA5 1TYHA5 1TZHA5 1UA

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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