CH48 1 postcode sector in the CH48 district

CH48 1 is a sector of the CH48 district: every postcode that starts CH48 1. It has 70 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 CH48 1 sector, by flood risk

Map of every postcode in the CH48 1 sector, by flood risk Of the 70 postcodes in the CH48 1 sector that ONS places, 1 are at medium risk at worst, 3 are at low risk at worst and 66 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Greasby, Caldy. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A540 CH48 1LA: not on the flood risk listCH48 1LB: not on the flood risk listCH48 1LD: not on the flood risk listCH48 1LE: not on the flood risk listCH48 1LF: not on the flood risk listCH48 1LG: not on the flood risk listCH48 1LH: not on the flood risk listCH48 1LJ: not on the flood risk listCH48 1LL: not on the flood risk listCH48 1LN: not on the flood risk listCH48 1LP: not on the flood risk listCH48 1LQ: not on the flood risk listCH48 1LR: not on the flood risk listCH48 1LS: not on the flood risk listCH48 1LT: not on the flood risk listCH48 1LU: not on the flood risk listCH48 1LW: not on the flood risk listCH48 1LX: not on the flood risk listCH48 1LY: not on the flood risk listCH48 1LZ: not on the flood risk listCH48 1NA: not on the flood risk listCH48 1NB: not on the flood risk listCH48 1ND: not on the flood risk listCH48 1NE: not on the flood risk listCH48 1NF: not on the flood risk listCH48 1NG: not on the flood risk listCH48 1NH: not on the flood risk listCH48 1NJ: not on the flood risk listCH48 1NL: not on the flood risk listCH48 1NN: not on the flood risk listCH48 1NP: not on the flood risk listCH48 1NR: not on the flood risk listCH48 1NT: not on the flood risk listCH48 1NU: not on the flood risk listCH48 1NX: not on the flood risk listCH48 1NY: not on the flood risk listCH48 1NZ: not on the flood risk listCH48 1PA: not on the flood risk listCH48 1PB: not on the flood risk listCH48 1PD: not on the flood risk listCH48 1PF: not on the flood risk listCH48 1PG: not on the flood risk listCH48 1PH: not on the flood risk listCH48 1PJ: not on the flood risk listCH48 1PN: not on the flood risk listCH48 1PP: not on the flood risk listCH48 1PQ: not on the flood risk listCH48 1PR: not on the flood risk listCH48 1PS: not on the flood risk listCH48 1PT: not on the flood risk listCH48 1PU: not on the flood risk listCH48 1PW: not on the flood risk listCH48 1PX: not on the flood risk listCH48 1PZ: not on the flood risk listCH48 1QA: not on the flood risk listCH48 1QB: not on the flood risk listCH48 1QE: not on the flood risk listCH48 1QF: not on the flood risk listCH48 1QH: not on the flood risk listCH48 1QJ: not on the flood risk listCH48 1QT: not on the flood risk listCH48 1QU: not on the flood risk listCH48 1QX: not on the flood risk listCH48 1QZ: not on the flood risk listCH48 1RB: not on the flood risk listCH48 1NW: low flood risk at worstCH48 1PE: low flood risk at worstCH48 1PL: low flood risk at worstCH48 1NS: medium flood risk at worst GreasbyCaldy Map of every postcode in the CH48 1 sector, by flood risk Of the 70 postcodes in the CH48 1 sector that ONS places, 1 are at medium risk at worst, 3 are at low risk at worst and 66 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Caldy. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Caldy
  • A home or business at high risk: 0
  • At medium risk at worst: 1
  • At low risk at worst: 3
  • At very low risk only: 0
  • Not on the at-risk list: 66

Of the 70 postcodes in the CH48 1 sector that ONS places, 1 are at medium risk at worst, 3 are at low risk at worst and 66 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.

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 medium risk at worst

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

CH48 1NS3 at medium risk

Further out, not drawn

This postcode lies well apart from the rest, so the map is drawn without it to show the rest closer; it is in every count.

CH48 1XX

What do homes sell for in CH48 1?

Homes in CH48 1 sold for a typical £840,000 in the 12 months to August 2026, across 9 sales, up 4.3% on the 12 months before, HM Land Registry's figures show.

£840,000 typical price, the 12 months to August 2026
£805,000 12 months to August 2025
▲ up 4.3% on the 12 months before
  • Detached £870,000 6 sales
  • Semi-detached 3 sales, too few to price

Standard sales of homes at market value at the postcodes that start CH48 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 CH48 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.

CH48 1LACH48 1LBCH48 1LDCH48 1LECH48 1LFCH48 1LGCH48 1LHCH48 1LJCH48 1LLCH48 1LNCH48 1LPCH48 1LQCH48 1LRCH48 1LSCH48 1LTCH48 1LUCH48 1LWCH48 1LXCH48 1LYCH48 1LZCH48 1NACH48 1NBCH48 1NDCH48 1NECH48 1NFCH48 1NGCH48 1NHCH48 1NJCH48 1NLCH48 1NNCH48 1NPCH48 1NRCH48 1NSCH48 1NTCH48 1NUCH48 1NWCH48 1NXCH48 1NYCH48 1NZCH48 1PACH48 1PBCH48 1PDCH48 1PECH48 1PFCH48 1PGCH48 1PHCH48 1PJCH48 1PLCH48 1PNCH48 1PPCH48 1PQCH48 1PRCH48 1PSCH48 1PTCH48 1PUCH48 1PWCH48 1PXCH48 1PZCH48 1QACH48 1QBCH48 1QECH48 1QFCH48 1QHCH48 1QJCH48 1QTCH48 1QUCH48 1QXCH48 1QZCH48 1RBCH48 1XX

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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