CH1 4 postcode sector in the CH1 district

CH1 4 is a sector of the CH1 district: every postcode that starts CH1 4. It has 172 postcodes in use, 7 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 CH1 4 sector, by flood risk

Map of every postcode in the CH1 4 sector, by flood risk Of the 171 postcodes in the CH1 4 sector in England that ONS places, 44 have a home or business at high risk, 29 are at medium risk at worst, 10 are at low risk at worst, 3 are at very low risk only and 85 are not on the Environment Agency's at-risk list. The other 1 are in Wales or Scotland, which the Environment Agency's list does not cover. 3 groups of postcodes at high or medium risk are outlined: 36 postcodes at high or medium risk; 7 postcodes at high or medium risk; 7 postcodes at high or medium risk. Places named: Chester City & the Garden Quarter, Blacon. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A5480A540 CH1 4QL: not covered by the flood listCH1 4AA: not on the flood risk listCH1 4AD: not on the flood risk listCH1 4AE: not on the flood risk listCH1 4AF: not on the flood risk listCH1 4AG: not on the flood risk listCH1 4AH: not on the flood risk listCH1 4AL: not on the flood risk listCH1 4AN: not on the flood risk listCH1 4AP: not on the flood risk listCH1 4AR: not on the flood risk listCH1 4AS: not on the flood risk listCH1 4AT: not on the flood risk listCH1 4AU: not on the flood risk listCH1 4AW: not on the flood risk listCH1 4BA: not on the flood risk listCH1 4BB: not on the flood risk listCH1 4BD: not on the flood risk listCH1 4BF: not on the flood risk listCH1 4BJ: not on the flood risk listCH1 4BL: not on the flood risk listCH1 4BN: not on the flood risk listCH1 4BR: not on the flood risk listCH1 4BS: not on the flood risk listCH1 4BU: not on the flood risk listCH1 4BW: not on the flood risk listCH1 4BX: not on the flood risk listCH1 4BY: not on the flood risk listCH1 4BZ: not on the flood risk listCH1 4DA: not on the flood risk listCH1 4DB: not on the flood risk listCH1 4DD: not on the flood risk listCH1 4DE: not on the flood risk listCH1 4DF: not on the flood risk listCH1 4DH: not on the flood risk listCH1 4DJ: not on the flood risk listCH1 4DR: not on the flood risk listCH1 4DS: not on the flood risk listCH1 4DT: not on the flood risk listCH1 4EB: not on the flood risk listCH1 4ED: not on the flood risk listCH1 4EE: not on the flood risk listCH1 4EF: not on the flood risk listCH1 4EG: not on the flood risk listCH1 4EH: not on the flood risk listCH1 4EJ: not on the flood risk listCH1 4EL: not on the flood risk listCH1 4EN: not on the flood risk listCH1 4EU: not on the flood risk listCH1 4EW: not on the flood risk listCH1 4EY: not on the flood risk listCH1 4EZ: not on the flood risk listCH1 4FA: not on the flood risk listCH1 4FB: not on the flood risk listCH1 4FD: not on the flood risk listCH1 4FE: not on the flood risk listCH1 4FF: not on the flood risk listCH1 4FG: not on the flood risk listCH1 4GA: not on the flood risk listCH1 4GD: not on the flood risk listCH1 4GH: not on the flood risk listCH1 4GR: not on the flood risk listCH1 4GW: not on the flood risk listCH1 4GX: not on the flood risk listCH1 4HA: not on the flood risk listCH1 4HB: not on the flood risk listCH1 4HD: not on the flood risk listCH1 4HE: not on the flood risk listCH1 4HF: not on the flood risk listCH1 4HG: not on the flood risk listCH1 4HH: not on the flood risk listCH1 4HL: not on the flood risk listCH1 4HN: not on the flood risk listCH1 4HP: not on the flood risk listCH1 4HQ: not on the flood risk listCH1 4HR: not on the flood risk listCH1 4HT: not on the flood risk listCH1 4HU: not on the flood risk listCH1 4HW: not on the flood risk listCH1 4HX: not on the flood risk listCH1 4JZ: not on the flood risk listCH1 4NL: not on the flood risk listCH1 4NX: not on the flood risk listCH1 4NZ: not on the flood risk listCH1 4PX: not on the flood risk listCH1 4DZ: very low flood risk onlyCH1 4PL: very low flood risk onlyCH1 4QD: very low flood risk onlyCH1 4AJ: low flood risk at worstCH1 4AQ: low flood risk at worstCH1 4BP: low flood risk at worstCH1 4DG: low flood risk at worstCH1 4DW: low flood risk at worstCH1 4JN: low flood risk at worstCH1 4LY: low flood risk at worstCH1 4NP: low flood risk at worstCH1 4PS: low flood risk at worstCH1 4QB: low flood risk at worstCH1 4BE: medium flood risk at worstCH1 4BT: medium flood risk at worstCH1 4DP: medium flood risk at worstCH1 4DY: medium flood risk at worstCH1 4EA: medium flood risk at worstCH1 4EQ: medium flood risk at worstCH1 4EX: medium flood risk at worstCH1 4JG: medium flood risk at worstCH1 4JJ: medium flood risk at worstCH1 4JP: medium flood risk at worstCH1 4JQ: medium flood risk at worstCH1 4LF: medium flood risk at worstCH1 4LH: medium flood risk at worstCH1 4LS: medium flood risk at worstCH1 4LT: medium flood risk at worstCH1 4LU: medium flood risk at worstCH1 4LX: medium flood risk at worstCH1 4NE: medium flood risk at worstCH1 4NS: medium flood risk at worstCH1 4NW: medium flood risk at worstCH1 4PA: medium flood risk at worstCH1 4PU: medium flood risk at worstCH1 4PY: medium flood risk at worstCH1 4QS: medium flood risk at worstCH1 4QX: medium flood risk at worstCH1 4RJ: medium flood risk at worstCH1 4RL: medium flood risk at worstCH1 4RN: medium flood risk at worstCH1 4RW: medium flood risk at worstCH1 4AY: high flood riskCH1 4AZ: high flood riskCH1 4BG: high flood riskCH1 4BH: high flood riskCH1 4BQ: high flood riskCH1 4DN: high flood riskCH1 4HZ: high flood riskCH1 4JA: high flood riskCH1 4JB: high flood riskCH1 4JD: high flood riskCH1 4JE: high flood riskCH1 4JF: high flood riskCH1 4JH: high flood riskCH1 4JL: high flood riskCH1 4JR: high flood riskCH1 4JS: high flood riskCH1 4JT: high flood riskCH1 4JU: high flood riskCH1 4JX: high flood riskCH1 4JY: high flood riskCH1 4LA: high flood riskCH1 4LB: high flood riskCH1 4LD: high flood riskCH1 4LE: high flood riskCH1 4LG: high flood riskCH1 4LJ: high flood riskCH1 4LL: high flood riskCH1 4LN: high flood riskCH1 4LQ: high flood riskCH1 4LW: high flood riskCH1 4LZ: high flood riskCH1 4NN: high flood riskCH1 4NT: high flood riskCH1 4PH: high flood riskCH1 4PR: high flood riskCH1 4PT: high flood riskCH1 4PZ: high flood riskCH1 4QG: high flood riskCH1 4QJ: high flood riskCH1 4QN: high flood riskCH1 4QP: high flood riskCH1 4QR: high flood riskCH1 4QT: high flood riskCH1 4RY: high flood risk Chester City & the Garden QuarterBlacon 36 postcodes at high or medium risk, outlined: this goes to CH1 4LZ, the one with most homes and businesses at high risk36 postcodes at high or medium risk7 postcodes at high or medium risk, outlined: this goes to CH1 4LH, the one with most homes and businesses at high risk7 postcodes at high or medium risk7 postcodes at high or medium risk, outlined: this goes to CH1 4QR, the one with most homes and businesses at high risk7 postcodes at high or medium risk Map of every postcode in the CH1 4 sector, by flood risk Of the 171 postcodes in the CH1 4 sector in England that ONS places, 44 have a home or business at high risk, 29 are at medium risk at worst, 10 are at low risk at worst, 3 are at very low risk only and 85 are not on the Environment Agency's at-risk list. The other 1 are in Wales or Scotland, which the Environment Agency's list does not cover. 3 groups of postcodes at high or medium risk are outlined: 36 postcodes at high or medium risk; 7 postcodes at high or medium risk; 7 postcodes at high or medium risk. Places named: Chester City & the Garden Quarter, Blacon. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Chester City & the Garden QuarterBlacon
  • A home or business at high risk: 44
  • At medium risk at worst: 29
  • At low risk at worst: 10
  • At very low risk only: 3
  • Not on the at-risk list: 85
  • In Wales or Scotland: not covered by the Environment Agency: 1
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 171 postcodes in the CH1 4 sector in England that ONS places, 44 have a home or business at high risk, 29 are at medium risk at worst, 10 are at low risk at worst, 3 are at very low risk only and 85 are not on the Environment Agency's at-risk list. The other 1 are in Wales or Scotland, which the Environment Agency's list does not cover.

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

44 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.

CH1 4LZ89 at high riskCH1 4LW86 at high riskCH1 4HZ62 at high riskCH1 4LN43 at high riskCH1 4JR32 at high riskCH1 4LG29 at high riskCH1 4QG29 at high riskCH1 4JB27 at high riskCH1 4JL26 at high riskCH1 4JE25 at high riskCH1 4LD24 at high riskCH1 4QR19 at high risk

Where the postcodes at high or medium risk lie together

  • 36 postcodes at high or medium risk, outlined on the map. CH1 4LZ, is the one with most homes and businesses at high risk.
  • 7 postcodes at high or medium risk, outlined on the map. CH1 4LH, is the one with most homes and businesses at high risk.
  • 7 postcodes at high or medium risk, outlined on the map. CH1 4QR, is the one with most homes and businesses at high risk.

What do homes sell for in CH1 4?

Homes in CH1 4 sold for a typical £205,000 in the 12 months to August 2026, across 97 sales, up 2.5% on the 12 months before, HM Land Registry's figures show.

£205,000 typical price, the 12 months to August 2026
£200,000 12 months to August 2025
▲ up 2.5% on the 12 months before
  • Detached 1 sale, too few to price
  • Semi-detached £220,130 19 sales
  • Terraced £255,000 37 sales
  • Flat or maisonette £150,000 40 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 CH1 4. 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 CH1 4

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.

CH1 4AACH1 4ADCH1 4AECH1 4AFCH1 4AGCH1 4AHCH1 4AJCH1 4ALCH1 4ANCH1 4APCH1 4AQCH1 4ARCH1 4ASCH1 4ATCH1 4AUCH1 4AWCH1 4AYCH1 4AZCH1 4BACH1 4BBCH1 4BDCH1 4BECH1 4BFCH1 4BGCH1 4BHCH1 4BJCH1 4BLCH1 4BNCH1 4BPCH1 4BQCH1 4BRCH1 4BSCH1 4BTCH1 4BUCH1 4BWCH1 4BXCH1 4BYCH1 4BZCH1 4DACH1 4DBCH1 4DDCH1 4DECH1 4DFCH1 4DGCH1 4DHCH1 4DJCH1 4DNCH1 4DPCH1 4DRCH1 4DSCH1 4DTCH1 4DWCH1 4DYCH1 4DZCH1 4EACH1 4EBCH1 4EDCH1 4EECH1 4EFCH1 4EGCH1 4EHCH1 4EJCH1 4ELCH1 4ENCH1 4EQCH1 4EUCH1 4EWCH1 4EXCH1 4EYCH1 4EZCH1 4FACH1 4FBCH1 4FDCH1 4FECH1 4FFCH1 4FGCH1 4GACH1 4GDCH1 4GHCH1 4GRCH1 4GWCH1 4GXCH1 4HACH1 4HBCH1 4HDCH1 4HECH1 4HFCH1 4HGCH1 4HHCH1 4HLCH1 4HNCH1 4HPCH1 4HQCH1 4HRCH1 4HTCH1 4HUCH1 4HWCH1 4HXCH1 4HZCH1 4JACH1 4JBCH1 4JDCH1 4JECH1 4JFCH1 4JGCH1 4JHCH1 4JJCH1 4JLCH1 4JNCH1 4JPCH1 4JQCH1 4JRCH1 4JSCH1 4JTCH1 4JUCH1 4JXCH1 4JYCH1 4JZCH1 4LACH1 4LBCH1 4LDCH1 4LECH1 4LFCH1 4LGCH1 4LHCH1 4LJCH1 4LLCH1 4LNCH1 4LQCH1 4LSCH1 4LTCH1 4LUCH1 4LWCH1 4LXCH1 4LYCH1 4LZCH1 4NECH1 4NLCH1 4NNCH1 4NPCH1 4NSCH1 4NTCH1 4NWCH1 4NXCH1 4NZCH1 4PACH1 4PHCH1 4PLCH1 4PRCH1 4PSCH1 4PTCH1 4PUCH1 4PXCH1 4PYCH1 4PZCH1 4QBCH1 4QDCH1 4QGCH1 4QJCH1 4QLCH1 4QNCH1 4QPCH1 4QRCH1 4QSCH1 4QTCH1 4QXCH1 4RJCH1 4RLCH1 4RNCH1 4RWCH1 4RYCH1 4YQ

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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