L3 4 postcode sector in the L3 district

L3 4 is a sector of the L3 district: every postcode that starts L3 4. It has 75 postcodes in use, 7 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 L3 4 sector, by flood risk

Map of every postcode in the L3 4 sector, by flood risk Of the 75 postcodes in the L3 4 sector that ONS places, 36 have a home or business at high risk, 1 are at medium risk at worst, 5 are at low risk at worst and 33 are not on the Environment Agency's at-risk list. 2 groups of postcodes at high or medium risk are outlined: 9 postcodes at high or medium risk; 5 postcodes at high or medium risk. One postcode lies beyond the edge and is listed under the map. Places named: Waterfront South, Festival Gardens. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A5038 L3 4BF: not on the flood risk listL3 4BJ: not on the flood risk listL3 4BN: not on the flood risk listL3 4BQ: not on the flood risk listL3 4BT: not on the flood risk listL3 4DE: not on the flood risk listL3 4DG: not on the flood risk listL3 4DH: not on the flood risk listL3 4DN: not on the flood risk listL3 4DP: not on the flood risk listL3 4DR: not on the flood risk listL3 4DT: not on the flood risk listL3 4DU: not on the flood risk listL3 4DX: not on the flood risk listL3 4DY: not on the flood risk listL3 4DZ: not on the flood risk listL3 4ED: not on the flood risk listL3 4EN: not on the flood risk listL3 4EQ: not on the flood risk listL3 4ET: not on the flood risk listL3 4EU: not on the flood risk listL3 4EY: not on the flood risk listL3 4FB: not on the flood risk listL3 4FD: not on the flood risk listL3 4FE: not on the flood risk listL3 4FF: not on the flood risk listL3 4FG: not on the flood risk listL3 4FH: not on the flood risk listL3 4FN: not on the flood risk listL3 4FQ: not on the flood risk listL3 4FT: not on the flood risk listL3 4FX: not on the flood risk listL3 4AQ: low flood risk at worstL3 4AX: low flood risk at worstL3 4BU: low flood risk at worstL3 4BW: low flood risk at worstL3 4EX: low flood risk at worstL3 4BG: medium flood risk at worstL3 4AA: high flood riskL3 4AB: high flood riskL3 4AD: high flood riskL3 4AE: high flood riskL3 4AF: high flood riskL3 4AN: high flood riskL3 4AS: high flood riskL3 4AY: high flood riskL3 4BB: high flood riskL3 4BE: high flood riskL3 4BH: high flood riskL3 4BL: high flood riskL3 4BP: high flood riskL3 4BX: high flood riskL3 4DA: high flood riskL3 4DB: high flood riskL3 4EB: high flood riskL3 4EE: high flood riskL3 4EF: high flood riskL3 4EG: high flood riskL3 4EH: high flood riskL3 4EJ: high flood riskL3 4EL: high flood riskL3 4EP: high flood riskL3 4ER: high flood riskL3 4ES: high flood riskL3 4EW: high flood riskL3 4FA: high flood riskL3 4FP: high flood riskL3 4GB: high flood riskL3 4GE: high flood risk Waterfront SouthFestival Gardens 9 postcodes at high or medium risk, outlined: this goes to L3 4ER, the one with most homes and businesses at high risk9 postcodes at high or medium risk5 postcodes at high or medium risk, outlined: this goes to L3 4AE, the one with most homes and businesses at high risk5 postcodes at high or medium risk Map of every postcode in the L3 4 sector, by flood risk Of the 75 postcodes in the L3 4 sector that ONS places, 36 have a home or business at high risk, 1 are at medium risk at worst, 5 are at low risk at worst and 33 are not on the Environment Agency's at-risk list. 2 groups of postcodes at high or medium risk are outlined: 9 postcodes at high or medium risk; 5 postcodes at high or medium risk. One postcode lies beyond the edge and is listed under the map. Places named: Waterfront South, Festival Gardens. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Waterfront SouthFestival Gardens
  • A home or business at high risk: 36
  • At medium risk at worst: 1
  • At low risk at worst: 5
  • At very low risk only: 0
  • Not on the at-risk list: 33
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 75 postcodes in the L3 4 sector that ONS places, 36 have a home or business at high risk, 1 are at medium risk at worst, 5 are at low risk at worst and 33 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. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and 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

The postcodes at high risk

36 postcodes here have a home or business at high risk. These are the 12 with the most homes and businesses at that risk.

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

L3 4AB93 at high riskL3 4GG81 at high riskL3 4GF80 at high riskL3 4GE79 at high riskL3 4ER73 at high riskL3 4EW64 at high riskL3 4EG55 at high riskL3 4EL51 at high riskL3 4EP46 at high riskL3 4EJ38 at high riskL3 4AA34 at high riskL3 4EF33 at high 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.

L3 4AZ

Where the postcodes at high or medium risk lie together

  • 9 postcodes at high or medium risk, outlined on the map. L3 4ER, is the one with most homes and businesses at high risk.
  • 5 postcodes at high or medium risk, outlined on the map. L3 4AE, is the one with most homes and businesses at high risk.

What do homes sell for in L3 4?

Homes in L3 4 sold for a typical £220,000 in the 12 months to August 2026, across 53 sales, up 24.3% on the 12 months before, HM Land Registry's figures show.

£220,000 typical price, the 12 months to August 2026
£177,000 12 months to August 2025
▲ up 24.3% on the 12 months before
  • Semi-detached £250,000 5 sales
  • Terraced 3 sales, too few to price
  • Flat or maisonette £200,000 45 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 L3 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

Postcodes in L3 4

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.

L3 4AAL3 4ABL3 4ADL3 4AEL3 4AFL3 4AGL3 4ANL3 4AQL3 4ASL3 4AXL3 4AYL3 4AZL3 4BBL3 4BEL3 4BFL3 4BGL3 4BHL3 4BJL3 4BLL3 4BNL3 4BPL3 4BQL3 4BTL3 4BUL3 4BWL3 4BXL3 4DAL3 4DBL3 4DEL3 4DGL3 4DHL3 4DJL3 4DNL3 4DPL3 4DRL3 4DTL3 4DUL3 4DXL3 4DYL3 4DZL3 4EBL3 4EDL3 4EEL3 4EFL3 4EGL3 4EHL3 4EJL3 4ELL3 4ENL3 4EPL3 4EQL3 4ERL3 4ESL3 4ETL3 4EUL3 4EWL3 4EXL3 4EYL3 4FAL3 4FBL3 4FDL3 4FEL3 4FFL3 4FGL3 4FHL3 4FNL3 4FPL3 4FQL3 4FTL3 4FXL3 4GBL3 4GEL3 4GFL3 4GGL3 4XX

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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