Coverage
Postcode lookup in London
Look up and verify London addresses with the Locatebase API. London is unusual in using compass-based postcode areas (such as SW and EC) rather than a single city code, reflecting its size and history.
Address lookup for London
London sits in Greater London, England. Whether you are powering checkout, onboarding, or delivery, Locatebase returns clean, structured London addresses from a single API request.
London is unusual in using compass-based postcode areas (such as SW and EC) rather than a single city code, reflecting its size and history.
How to look up a postcode
- Send the postcode — Make a request with the postcode and your API key.
- Receive addresses — Get every matching London address as structured JSON.
- Use the data — Autocomplete forms, validate input, or enrich records.
Frequently asked questions
Which postcode areas cover London?
London is primarily served by the E, EC, N, NW, SE, SW, W, WC postcode areas. Locatebase covers these and the wider UK.
Which addresses does Locatebase cover?
Locatebase provides comprehensive UK address and postcode coverage, kept current so your lookups stay accurate.
How much does Locatebase cost?
Locatebase uses simple monthly plans from £19/month, each with an included lookup allowance. Need more? Extra lookups are billed automatically from 2p each, depending on your plan. See the pricing page for current plans.