CH42 1 postcode sector in the CH42 district

CH42 1 is a sector of the CH42 district: every postcode that starts CH42 1. It has 88 postcodes in use.

Not sure what a sector is? UK postcode format explained.

Every postcode in the CH42 1 sector, by flood risk

Map of every postcode in the CH42 1 sector, by flood risk Of the 88 postcodes in the CH42 1 sector that ONS places, 3 have a home or business at high risk, 1 are at low risk at worst and 84 are not on the Environment Agency's at-risk list. Places named: Rock Ferry. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A41 CH42 1AB: not on the flood risk listCH42 1AD: not on the flood risk listCH42 1AE: not on the flood risk listCH42 1AF: not on the flood risk listCH42 1AG: not on the flood risk listCH42 1AH: not on the flood risk listCH42 1LB: not on the flood risk listCH42 1LE: not on the flood risk listCH42 1LG: not on the flood risk listCH42 1LH: not on the flood risk listCH42 1LJ: not on the flood risk listCH42 1LL: not on the flood risk listCH42 1LR: not on the flood risk listCH42 1LT: not on the flood risk listCH42 1LU: not on the flood risk listCH42 1LW: not on the flood risk listCH42 1LY: not on the flood risk listCH42 1NB: not on the flood risk listCH42 1NF: not on the flood risk listCH42 1NG: not on the flood risk listCH42 1NH: not on the flood risk listCH42 1NS: not on the flood risk listCH42 1NT: not on the flood risk listCH42 1NW: not on the flood risk listCH42 1NX: not on the flood risk listCH42 1NY: not on the flood risk listCH42 1NZ: not on the flood risk listCH42 1PA: not on the flood risk listCH42 1PB: not on the flood risk listCH42 1PD: not on the flood risk listCH42 1PE: not on the flood risk listCH42 1PF: not on the flood risk listCH42 1PG: not on the flood risk listCH42 1PH: not on the flood risk listCH42 1PL: not on the flood risk listCH42 1PN: not on the flood risk listCH42 1PP: not on the flood risk listCH42 1PQ: not on the flood risk listCH42 1PR: not on the flood risk listCH42 1PS: not on the flood risk listCH42 1PT: not on the flood risk listCH42 1PW: not on the flood risk listCH42 1PX: not on the flood risk listCH42 1PY: not on the flood risk listCH42 1PZ: not on the flood risk listCH42 1QA: not on the flood risk listCH42 1QB: not on the flood risk listCH42 1QD: not on the flood risk listCH42 1QE: not on the flood risk listCH42 1QF: not on the flood risk listCH42 1QG: not on the flood risk listCH42 1QH: not on the flood risk listCH42 1QJ: not on the flood risk listCH42 1QL: not on the flood risk listCH42 1QN: not on the flood risk listCH42 1QP: not on the flood risk listCH42 1QQ: not on the flood risk listCH42 1QR: not on the flood risk listCH42 1QS: not on the flood risk listCH42 1QT: not on the flood risk listCH42 1QU: not on the flood risk listCH42 1QX: not on the flood risk listCH42 1QY: not on the flood risk listCH42 1QZ: not on the flood risk listCH42 1RA: not on the flood risk listCH42 1RB: not on the flood risk listCH42 1RD: not on the flood risk listCH42 1RE: not on the flood risk listCH42 1RF: not on the flood risk listCH42 1RG: not on the flood risk listCH42 1RH: not on the flood risk listCH42 1RJ: not on the flood risk listCH42 1RL: not on the flood risk listCH42 1RN: not on the flood risk listCH42 1RP: not on the flood risk listCH42 1RQ: not on the flood risk listCH42 1RR: not on the flood risk listCH42 1RS: not on the flood risk listCH42 1RT: not on the flood risk listCH42 1RU: not on the flood risk listCH42 1RW: not on the flood risk listCH42 1RY: not on the flood risk listCH42 1RZ: not on the flood risk listCH42 1SD: not on the flood risk listCH42 1PJ: low flood risk at worstCH42 1LQ: high flood riskCH42 1LS: high flood riskCH42 1PU: high flood risk Rock Ferry Map of every postcode in the CH42 1 sector, by flood risk Of the 88 postcodes in the CH42 1 sector that ONS places, 3 have a home or business at high risk, 1 are at low risk at worst and 84 are not on the Environment Agency's at-risk list. Places named: Rock Ferry. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Rock Ferry
  • A home or business at high risk: 3
  • At medium risk at worst: 0
  • At low risk at worst: 1
  • At very low risk only: 0
  • Not on the at-risk list: 84

Of the 88 postcodes in the CH42 1 sector that ONS places, 3 have a home or business at high risk, 1 are at low risk at worst and 84 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. 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.

What do homes sell for in CH42 1?

Homes in CH42 1 sold for a typical £140,000 in the 12 months to August 2026, across 19 sales, up 12% on the 12 months before, HM Land Registry's figures show.

£140,000 typical price, the 12 months to August 2026
£125,000 12 months to August 2025
▲ up 12% on the 12 months before
  • Detached 1 sale, too few to price
  • Semi-detached £159,000 7 sales
  • Terraced £133,500 9 sales
  • Flat or maisonette 2 sales, 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 CH42 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

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.