CH42 4 postcode sector in the CH42 district

CH42 4 is a sector of the CH42 district: every postcode that starts CH42 4. It has 83 postcodes in use.

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

Every postcode in the CH42 4 sector, by flood risk

Map of every postcode in the CH42 4 sector, by flood risk Of the 83 postcodes in the CH42 4 sector that ONS places, 83 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 4AA: not on the flood risk listCH42 4AB: not on the flood risk listCH42 4AD: not on the flood risk listCH42 4AE: not on the flood risk listCH42 4AF: not on the flood risk listCH42 4AH: not on the flood risk listCH42 4LY: not on the flood risk listCH42 4LZ: not on the flood risk listCH42 4NA: not on the flood risk listCH42 4NB: not on the flood risk listCH42 4ND: not on the flood risk listCH42 4NE: not on the flood risk listCH42 4NF: not on the flood risk listCH42 4NG: not on the flood risk listCH42 4NH: not on the flood risk listCH42 4NJ: not on the flood risk listCH42 4NL: not on the flood risk listCH42 4NN: not on the flood risk listCH42 4NP: not on the flood risk listCH42 4NQ: not on the flood risk listCH42 4NR: not on the flood risk listCH42 4NS: not on the flood risk listCH42 4NT: not on the flood risk listCH42 4NU: not on the flood risk listCH42 4NW: not on the flood risk listCH42 4NX: not on the flood risk listCH42 4NY: not on the flood risk listCH42 4NZ: not on the flood risk listCH42 4PA: not on the flood risk listCH42 4PB: not on the flood risk listCH42 4PD: not on the flood risk listCH42 4PE: not on the flood risk listCH42 4PF: not on the flood risk listCH42 4PG: not on the flood risk listCH42 4PH: not on the flood risk listCH42 4PJ: not on the flood risk listCH42 4PL: not on the flood risk listCH42 4PN: not on the flood risk listCH42 4PP: not on the flood risk listCH42 4PQ: not on the flood risk listCH42 4PR: not on the flood risk listCH42 4PS: not on the flood risk listCH42 4PT: not on the flood risk listCH42 4PU: not on the flood risk listCH42 4PW: not on the flood risk listCH42 4PX: not on the flood risk listCH42 4PY: not on the flood risk listCH42 4PZ: not on the flood risk listCH42 4QA: not on the flood risk listCH42 4QB: not on the flood risk listCH42 4QD: not on the flood risk listCH42 4QE: not on the flood risk listCH42 4QF: not on the flood risk listCH42 4QG: not on the flood risk listCH42 4QH: not on the flood risk listCH42 4QJ: not on the flood risk listCH42 4QL: not on the flood risk listCH42 4QN: not on the flood risk listCH42 4QP: not on the flood risk listCH42 4QQ: not on the flood risk listCH42 4QR: not on the flood risk listCH42 4QS: not on the flood risk listCH42 4QT: not on the flood risk listCH42 4QU: not on the flood risk listCH42 4QW: not on the flood risk listCH42 4QX: not on the flood risk listCH42 4QY: not on the flood risk listCH42 4QZ: not on the flood risk listCH42 4RA: not on the flood risk listCH42 4RB: not on the flood risk listCH42 4RD: not on the flood risk listCH42 4RE: not on the flood risk listCH42 4RF: not on the flood risk listCH42 4RG: not on the flood risk listCH42 4RH: not on the flood risk listCH42 4RJ: not on the flood risk listCH42 4RL: not on the flood risk listCH42 4RN: not on the flood risk listCH42 4RP: not on the flood risk listCH42 4RQ: not on the flood risk listCH42 4RT: not on the flood risk listCH42 4SB: not on the flood risk list Rock Ferry Map of every postcode in the CH42 4 sector, by flood risk Of the 83 postcodes in the CH42 4 sector that ONS places, 83 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: 0
  • At medium risk at worst: 0
  • At low risk at worst: 0
  • At very low risk only: 0
  • Not on the at-risk list: 83

Of the 83 postcodes in the CH42 4 sector that ONS places, 83 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

What do homes sell for in CH42 4?

Homes in CH42 4 sold for a typical £163,000 in the 12 months to August 2026, across 38 sales, up 5.2% on the 12 months before, HM Land Registry's figures show.

£163,000 typical price, the 12 months to August 2026
£155,000 12 months to August 2025
▲ up 5.2% on the 12 months before
  • Detached 2 sales, too few to price
  • Semi-detached £183,000 19 sales
  • Terraced £149,250 10 sales
  • Flat or maisonette £75,000 7 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 CH42 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

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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