L31 3 postcode sector in the L31 district

L31 3 is a sector of the L31 district: every postcode that starts L31 3. It has 57 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 L31 3 sector, by flood risk

Map of every postcode in the L31 3 sector, by flood risk Of the 57 postcodes in the L31 3 sector that ONS places, 6 have a home or business at high risk, 2 are at medium risk at worst, 8 are at low risk at worst, 1 are at very low risk only and 40 are not on the Environment Agency's at-risk list. Places named: Maghull. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. L31 3AB: not on the flood risk listL31 3DA: not on the flood risk listL31 3DD: not on the flood risk listL31 3DE: not on the flood risk listL31 3DF: not on the flood risk listL31 3DH: not on the flood risk listL31 3DN: not on the flood risk listL31 3DP: not on the flood risk listL31 3DQ: not on the flood risk listL31 3DR: not on the flood risk listL31 3DS: not on the flood risk listL31 3DU: not on the flood risk listL31 3DW: not on the flood risk listL31 3DX: not on the flood risk listL31 3EA: not on the flood risk listL31 3EB: not on the flood risk listL31 3ED: not on the flood risk listL31 3EE: not on the flood risk listL31 3EF: not on the flood risk listL31 3EH: not on the flood risk listL31 3EQ: not on the flood risk listL31 3ER: not on the flood risk listL31 3ES: not on the flood risk listL31 3ET: not on the flood risk listL31 3EW: not on the flood risk listL31 3EX: not on the flood risk listL31 3EZ: not on the flood risk listL31 3FA: not on the flood risk listL31 3FB: not on the flood risk listL31 3HA: not on the flood risk listL31 3HB: not on the flood risk listL31 3HD: not on the flood risk listL31 3HE: not on the flood risk listL31 3HF: not on the flood risk listL31 3HH: not on the flood risk listL31 3HN: not on the flood risk listL31 3HR: not on the flood risk listL31 3HS: not on the flood risk listL31 3HT: not on the flood risk listL31 3JD: not on the flood risk listL31 3DZ: very low flood risk onlyL31 3DB: low flood risk at worstL31 3DG: low flood risk at worstL31 3DL: low flood risk at worstL31 3EJ: low flood risk at worstL31 3EP: low flood risk at worstL31 3EU: low flood risk at worstL31 3HP: low flood risk at worstL31 3HU: low flood risk at worstL31 3AD: medium flood risk at worstL31 3EG: medium flood risk at worstL31 3DT: high flood riskL31 3DY: high flood riskL31 3EL: high flood riskL31 3EN: high flood riskL31 3EY: high flood riskL31 3HG: high flood risk Maghull Map of every postcode in the L31 3 sector, by flood risk Of the 57 postcodes in the L31 3 sector that ONS places, 6 have a home or business at high risk, 2 are at medium risk at worst, 8 are at low risk at worst, 1 are at very low risk only and 40 are not on the Environment Agency's at-risk list. Places named: Maghull. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Maghull
  • A home or business at high risk: 6
  • At medium risk at worst: 2
  • At low risk at worst: 8
  • At very low risk only: 1
  • Not on the at-risk list: 40

Of the 57 postcodes in the L31 3 sector that ONS places, 6 have a home or business at high risk, 2 are at medium risk at worst, 8 are at low risk at worst, 1 are at very low risk only and 40 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.

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 L31 3?

Homes in L31 3 sold for a typical £340,000 in the 12 months to August 2026, across 15 sales, up 7.9% on the 12 months before, HM Land Registry's figures show.

£340,000 typical price, the 12 months to August 2026
£315,000 12 months to August 2025
▲ up 7.9% on the 12 months before
  • Detached £425,000 5 sales
  • Semi-detached £340,000 9 sales
  • Terraced 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 L31 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 L31 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.

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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