CH43 3 postcode sector in the CH43 district

CH43 3 is a sector of the CH43 district: every postcode that starts CH43 3. It has 71 postcodes in use, 2 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 CH43 3 sector, by flood risk

Map of every postcode in the CH43 3 sector, by flood risk Of the 71 postcodes in the CH43 3 sector that ONS places, 3 have a home or business at high risk, 1 are at medium risk at worst, 6 are at low risk at worst and 61 are not on the Environment Agency's at-risk list. Places named: Prenton. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A552 CH43 3AA: not on the flood risk listCH43 3AD: not on the flood risk listCH43 3AE: not on the flood risk listCH43 3AF: not on the flood risk listCH43 3AG: not on the flood risk listCH43 3AJ: not on the flood risk listCH43 3AL: not on the flood risk listCH43 3AN: not on the flood risk listCH43 3AQ: not on the flood risk listCH43 3AR: not on the flood risk listCH43 3AS: not on the flood risk listCH43 3AT: not on the flood risk listCH43 3AU: not on the flood risk listCH43 3AW: not on the flood risk listCH43 3AX: not on the flood risk listCH43 3AY: not on the flood risk listCH43 3AZ: not on the flood risk listCH43 3BD: not on the flood risk listCH43 3BE: not on the flood risk listCH43 3BH: not on the flood risk listCH43 3BJ: not on the flood risk listCH43 3BL: not on the flood risk listCH43 3BN: not on the flood risk listCH43 3BP: not on the flood risk listCH43 3BR: not on the flood risk listCH43 3BS: not on the flood risk listCH43 3BT: not on the flood risk listCH43 3BU: not on the flood risk listCH43 3BW: not on the flood risk listCH43 3BX: not on the flood risk listCH43 3BY: not on the flood risk listCH43 3BZ: not on the flood risk listCH43 3DA: not on the flood risk listCH43 3DB: not on the flood risk listCH43 3DD: not on the flood risk listCH43 3DE: not on the flood risk listCH43 3DF: not on the flood risk listCH43 3DG: not on the flood risk listCH43 3DH: not on the flood risk listCH43 3DJ: not on the flood risk listCH43 3DL: not on the flood risk listCH43 3DN: not on the flood risk listCH43 3DP: not on the flood risk listCH43 3DQ: not on the flood risk listCH43 3DR: not on the flood risk listCH43 3DW: not on the flood risk listCH43 3DX: not on the flood risk listCH43 3DY: not on the flood risk listCH43 3EA: not on the flood risk listCH43 3EB: not on the flood risk listCH43 3ER: not on the flood risk listCH43 3ES: not on the flood risk listCH43 3ET: not on the flood risk listCH43 3EW: not on the flood risk listCH43 3EX: not on the flood risk listCH43 3EY: not on the flood risk listCH43 3EZ: not on the flood risk listCH43 3HA: not on the flood risk listCH43 3HE: not on the flood risk listCH43 3HF: not on the flood risk listCH43 3HG: not on the flood risk listCH43 3AP: low flood risk at worstCH43 3BA: low flood risk at worstCH43 3BB: low flood risk at worstCH43 3BG: low flood risk at worstCH43 3DZ: low flood risk at worstCH43 3HQ: low flood risk at worstCH43 3BQ: medium flood risk at worstCH43 3DS: high flood riskCH43 3DT: high flood riskCH43 3DU: high flood risk Prenton Map of every postcode in the CH43 3 sector, by flood risk Of the 71 postcodes in the CH43 3 sector that ONS places, 3 have a home or business at high risk, 1 are at medium risk at worst, 6 are at low risk at worst and 61 are not on the Environment Agency's at-risk list. Places named: Prenton. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. M53 Prenton
  • A home or business at high risk: 3
  • At medium risk at worst: 1
  • At low risk at worst: 6
  • At very low risk only: 0
  • Not on the at-risk list: 61

Of the 71 postcodes in the CH43 3 sector that ONS places, 3 have a home or business at high risk, 1 are at medium risk at worst, 6 are at low risk at worst and 61 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.

CH43 3DU17 at high riskCH43 3DS3 at high riskCH43 3DT1 at high risk

What do homes sell for in CH43 3?

Homes in CH43 3 sold for a typical £225,000 in the 12 months to August 2026, across 37 sales, up 14.2% on the 12 months before, HM Land Registry's figures show.

£225,000 typical price, the 12 months to August 2026
£197,000 12 months to August 2025
▲ up 14.2% on the 12 months before
  • Detached 3 sales, too few to price
  • Semi-detached £227,000 28 sales
  • Terraced £170,000 5 sales
  • Flat or maisonette 1 sale, 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 CH43 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 CH43 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.

CH43 3AACH43 3ADCH43 3AECH43 3AFCH43 3AGCH43 3AJCH43 3ALCH43 3ANCH43 3APCH43 3AQCH43 3ARCH43 3ASCH43 3ATCH43 3AUCH43 3AWCH43 3AXCH43 3AYCH43 3AZCH43 3BACH43 3BBCH43 3BDCH43 3BECH43 3BGCH43 3BHCH43 3BJCH43 3BLCH43 3BNCH43 3BPCH43 3BQCH43 3BRCH43 3BSCH43 3BTCH43 3BUCH43 3BWCH43 3BXCH43 3BYCH43 3BZCH43 3DACH43 3DBCH43 3DDCH43 3DECH43 3DFCH43 3DGCH43 3DHCH43 3DJCH43 3DLCH43 3DNCH43 3DPCH43 3DQCH43 3DRCH43 3DSCH43 3DTCH43 3DUCH43 3DWCH43 3DXCH43 3DYCH43 3DZCH43 3EACH43 3EBCH43 3ERCH43 3ESCH43 3ETCH43 3EWCH43 3EXCH43 3EYCH43 3EZCH43 3HACH43 3HECH43 3HFCH43 3HGCH43 3HQ

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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