L21 1 postcode sector in the L21 district

L21 1 is a sector of the L21 district: every postcode that starts L21 1. It has 87 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 L21 1 sector, by flood risk

Map of every postcode in the L21 1 sector, by flood risk Of the 87 postcodes in the L21 1 sector that ONS places, 1 have a home or business at high risk and 86 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Bootle West, Waterloo. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A565A5036 L21 1AD: not on the flood risk listL21 1AE: not on the flood risk listL21 1AF: not on the flood risk listL21 1AG: not on the flood risk listL21 1AH: not on the flood risk listL21 1AJ: not on the flood risk listL21 1AL: not on the flood risk listL21 1AN: not on the flood risk listL21 1AP: not on the flood risk listL21 1AQ: not on the flood risk listL21 1AR: not on the flood risk listL21 1AS: not on the flood risk listL21 1AT: not on the flood risk listL21 1AW: not on the flood risk listL21 1AX: not on the flood risk listL21 1BB: not on the flood risk listL21 1BD: not on the flood risk listL21 1BE: not on the flood risk listL21 1BH: not on the flood risk listL21 1BJ: not on the flood risk listL21 1BL: not on the flood risk listL21 1BN: not on the flood risk listL21 1BP: not on the flood risk listL21 1BR: not on the flood risk listL21 1BS: not on the flood risk listL21 1BT: not on the flood risk listL21 1BU: not on the flood risk listL21 1BX: not on the flood risk listL21 1BY: not on the flood risk listL21 1BZ: not on the flood risk listL21 1DA: not on the flood risk listL21 1DB: not on the flood risk listL21 1DD: not on the flood risk listL21 1DE: not on the flood risk listL21 1DF: not on the flood risk listL21 1DG: not on the flood risk listL21 1DH: not on the flood risk listL21 1DJ: not on the flood risk listL21 1DN: not on the flood risk listL21 1DP: not on the flood risk listL21 1DQ: not on the flood risk listL21 1DR: not on the flood risk listL21 1DS: not on the flood risk listL21 1DT: not on the flood risk listL21 1DU: not on the flood risk listL21 1DW: not on the flood risk listL21 1DX: not on the flood risk listL21 1DY: not on the flood risk listL21 1DZ: not on the flood risk listL21 1EB: not on the flood risk listL21 1EE: not on the flood risk listL21 1EF: not on the flood risk listL21 1EG: not on the flood risk listL21 1EH: not on the flood risk listL21 1EJ: not on the flood risk listL21 1EL: not on the flood risk listL21 1EN: not on the flood risk listL21 1EP: not on the flood risk listL21 1EQ: not on the flood risk listL21 1ER: not on the flood risk listL21 1ES: not on the flood risk listL21 1ET: not on the flood risk listL21 1EW: not on the flood risk listL21 1EX: not on the flood risk listL21 1EY: not on the flood risk listL21 1EZ: not on the flood risk listL21 1HA: not on the flood risk listL21 1HD: not on the flood risk listL21 1HG: not on the flood risk listL21 1HJ: not on the flood risk listL21 1HL: not on the flood risk listL21 1HN: not on the flood risk listL21 1HP: not on the flood risk listL21 1HQ: not on the flood risk listL21 1HR: not on the flood risk listL21 1HS: not on the flood risk listL21 1HT: not on the flood risk listL21 1HU: not on the flood risk listL21 1HX: not on the flood risk listL21 1JF: not on the flood risk listL21 1JG: not on the flood risk listL21 1JQ: not on the flood risk listL21 1JR: not on the flood risk listL21 1JW: not on the flood risk listL21 1JD: high flood risk Bootle WestWaterloo Map of every postcode in the L21 1 sector, by flood risk Of the 87 postcodes in the L21 1 sector that ONS places, 1 have a home or business at high risk and 86 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Bootle West, Waterloo. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Bootle WestWaterloo
  • A home or business at high risk: 1
  • At medium risk at worst: 0
  • At low risk at worst: 0
  • At very low risk only: 0
  • Not on the at-risk list: 86

Of the 87 postcodes in the L21 1 sector that ONS places, 1 have a home or business at high risk and 86 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.

Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; Environment Agency flood risk, published 6 July 2026; roads, rivers and built-up areas: Ordnance Survey open maps. 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.

The postcodes at high risk

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

L21 1JD1 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.

L21 1WY

What do homes sell for in L21 1?

Homes in L21 1 sold for a typical £145,000 in the 12 months to September 2026, across 20 sales, HM Land Registry's figures show. The 12 months before gave £139,950 from 23 sales. With fewer than 30 sales a year, a change can come from which homes happened to sell, so we do not give one.

£145,000 typical price, the 12 months to September 2026
£139,950 12 months to September 2025
  • Semi-detached £165,000 7 sales
  • Terraced £138,500 12 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 L21 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 October 2026.

Postcodes in L21 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.

L21 1ADL21 1AEL21 1AFL21 1AGL21 1AHL21 1AJL21 1ALL21 1ANL21 1APL21 1AQL21 1ARL21 1ASL21 1ATL21 1AWL21 1AXL21 1BBL21 1BDL21 1BEL21 1BHL21 1BJL21 1BLL21 1BNL21 1BPL21 1BRL21 1BSL21 1BTL21 1BUL21 1BXL21 1BYL21 1BZL21 1DAL21 1DBL21 1DDL21 1DEL21 1DFL21 1DGL21 1DHL21 1DJL21 1DNL21 1DPL21 1DQL21 1DRL21 1DSL21 1DTL21 1DUL21 1DWL21 1DXL21 1DYL21 1DZL21 1EBL21 1EEL21 1EFL21 1EGL21 1EHL21 1EJL21 1ELL21 1ENL21 1EPL21 1EQL21 1ERL21 1ESL21 1ETL21 1EWL21 1EXL21 1EYL21 1EZL21 1HAL21 1HDL21 1HGL21 1HJL21 1HLL21 1HNL21 1HPL21 1HQL21 1HRL21 1HSL21 1HTL21 1HUL21 1HXL21 1JDL21 1JFL21 1JGL21 1JQL21 1JRL21 1JWL21 1LAL21 1WY

Source: ONS Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed.

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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Where the facts on this page come from

Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.

Licence: Open Government Licence v3.0.

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