CH45 3 postcode sector in the CH45 district

CH45 3 is a sector of the CH45 district: every postcode that starts CH45 3. It has 87 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 CH45 3 sector, by flood risk

Map of every postcode in the CH45 3 sector, by flood risk Of the 87 postcodes in the CH45 3 sector that ONS places, 1 have a home or business at high risk and 86 are not on the Environment Agency's at-risk list. Places named: Wallasey. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A554A551 CH45 3GH: not on the flood risk listCH45 3HA: not on the flood risk listCH45 3HB: not on the flood risk listCH45 3HD: not on the flood risk listCH45 3HE: not on the flood risk listCH45 3HF: not on the flood risk listCH45 3HG: not on the flood risk listCH45 3HH: not on the flood risk listCH45 3HJ: not on the flood risk listCH45 3HL: not on the flood risk listCH45 3HN: not on the flood risk listCH45 3HP: not on the flood risk listCH45 3HQ: not on the flood risk listCH45 3HR: not on the flood risk listCH45 3HS: not on the flood risk listCH45 3HT: not on the flood risk listCH45 3HU: not on the flood risk listCH45 3HW: not on the flood risk listCH45 3HX: not on the flood risk listCH45 3HY: not on the flood risk listCH45 3HZ: not on the flood risk listCH45 3JA: not on the flood risk listCH45 3JB: not on the flood risk listCH45 3JD: not on the flood risk listCH45 3JE: not on the flood risk listCH45 3JF: not on the flood risk listCH45 3JG: not on the flood risk listCH45 3JH: not on the flood risk listCH45 3JJ: not on the flood risk listCH45 3JL: not on the flood risk listCH45 3JN: not on the flood risk listCH45 3JP: not on the flood risk listCH45 3JQ: not on the flood risk listCH45 3JR: not on the flood risk listCH45 3JS: not on the flood risk listCH45 3JT: not on the flood risk listCH45 3JU: not on the flood risk listCH45 3JW: not on the flood risk listCH45 3JX: not on the flood risk listCH45 3JY: not on the flood risk listCH45 3JZ: not on the flood risk listCH45 3LA: not on the flood risk listCH45 3LD: not on the flood risk listCH45 3LE: not on the flood risk listCH45 3LF: not on the flood risk listCH45 3LG: not on the flood risk listCH45 3LH: not on the flood risk listCH45 3LJ: not on the flood risk listCH45 3LL: not on the flood risk listCH45 3LN: not on the flood risk listCH45 3LP: not on the flood risk listCH45 3LQ: not on the flood risk listCH45 3LR: not on the flood risk listCH45 3LS: not on the flood risk listCH45 3LT: not on the flood risk listCH45 3LU: not on the flood risk listCH45 3LX: not on the flood risk listCH45 3LY: not on the flood risk listCH45 3NA: not on the flood risk listCH45 3NB: not on the flood risk listCH45 3NE: not on the flood risk listCH45 3NF: not on the flood risk listCH45 3NG: not on the flood risk listCH45 3NH: not on the flood risk listCH45 3NN: not on the flood risk listCH45 3NP: not on the flood risk listCH45 3NQ: not on the flood risk listCH45 3NR: not on the flood risk listCH45 3NS: not on the flood risk listCH45 3NU: not on the flood risk listCH45 3NW: not on the flood risk listCH45 3NY: not on the flood risk listCH45 3NZ: not on the flood risk listCH45 3PA: not on the flood risk listCH45 3PB: not on the flood risk listCH45 3PD: not on the flood risk listCH45 3PS: not on the flood risk listCH45 3QH: not on the flood risk listCH45 3QJ: not on the flood risk listCH45 3QL: not on the flood risk listCH45 3QN: not on the flood risk listCH45 3QQ: not on the flood risk listCH45 3QS: not on the flood risk listCH45 3QW: not on the flood risk listCH45 3PZ: high flood risk Wallasey Map of every postcode in the CH45 3 sector, by flood risk Of the 87 postcodes in the CH45 3 sector that ONS places, 1 have a home or business at high risk and 86 are not on the Environment Agency's at-risk list. Places named: Wallasey. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Wallasey
  • A home or business at high risk: 1
  • At medium risk at worst: 0
  • At low risk at worst: 0
  • At very low risk only: 0
  • Not on the at-risk list: 86

Of the 87 postcodes in the CH45 3 sector that ONS places, 1 have a home or business at high risk and 86 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. 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

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

CH45 3PZ1 at high risk

What do homes sell for in CH45 3?

Homes in CH45 3 sold for a typical £230,000 in the 12 months to August 2026, across 35 sales, down 2.1% on the 12 months before, HM Land Registry's figures show.

£230,000 typical price, the 12 months to August 2026
£235,000 12 months to August 2025
▼ down 2.1% on the 12 months before
  • Detached 3 sales, too few to price
  • Semi-detached £287,500 16 sales
  • Terraced 3 sales, too few to price
  • Flat or maisonette £105,000 13 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 CH45 3. 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 CH45 3

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.

CH45 3GHCH45 3HACH45 3HBCH45 3HDCH45 3HECH45 3HFCH45 3HGCH45 3HHCH45 3HJCH45 3HLCH45 3HNCH45 3HPCH45 3HQCH45 3HRCH45 3HSCH45 3HTCH45 3HUCH45 3HWCH45 3HXCH45 3HYCH45 3HZCH45 3JACH45 3JBCH45 3JDCH45 3JECH45 3JFCH45 3JGCH45 3JHCH45 3JJCH45 3JLCH45 3JNCH45 3JPCH45 3JQCH45 3JRCH45 3JSCH45 3JTCH45 3JUCH45 3JWCH45 3JXCH45 3JYCH45 3JZCH45 3LACH45 3LDCH45 3LECH45 3LFCH45 3LGCH45 3LHCH45 3LJCH45 3LLCH45 3LNCH45 3LPCH45 3LQCH45 3LRCH45 3LSCH45 3LTCH45 3LUCH45 3LXCH45 3LYCH45 3NACH45 3NBCH45 3NECH45 3NFCH45 3NGCH45 3NHCH45 3NNCH45 3NPCH45 3NQCH45 3NRCH45 3NSCH45 3NTCH45 3NUCH45 3NWCH45 3NXCH45 3NYCH45 3NZCH45 3PACH45 3PBCH45 3PDCH45 3PSCH45 3PZCH45 3QHCH45 3QJCH45 3QLCH45 3QNCH45 3QQCH45 3QSCH45 3QW

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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