What does an SE1P postcode tell you?

That the address lies in the SE1P district of the SE (South East London) postcode area, and the place OS Open Names most often lists first for its postcodes is Bermondsey. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 929 live postcodes.

SE1P postcode district

SE1P, in the SE (South East London) postcode area, has 929 live and 242 terminated postcodes in the ONS Postcode Directory of August 2026, and OS Open Names files 1 road under it.

postcode area	SE (South East London)
live postcodes	929
terminated postcodes	242
sectors	3
roads listed	1
companies registered	1
centroid	51.49277, -0.08013
directory release	2026-08

Postcodes and sectors

929 of the district's 1,171 postcodes are live in the ONS Postcode Directory of August 2026. A postcode directory says whether a code is in use, never who is there. The live postcodes centre on 51.49277, -0.08013, which locates the district, not a building.

sector	live	terminated
SE1P 4	344	56
SE1P 5	344	56
SE1P 6	241	130

Companies registered in SE1P

Companies House lists 1 company with a registered office in SE1P (1 October 2026 snapshot).

Places OS Open Names lists for SE1P

Bermondsey
Southwark
Greater London
London

Roads filed under SE1P

Named roads first, then numbered ones. A road is filed under one district even where it runs through several, so a street missing here may be listed under a neighbouring district — which is why the address lookup never calls a British street absent. Great Britain has no open register of buildings, so a listed road never means a building on it exists.

Shand Street

Check an address in SE1P

The same road list through the API, from the outward code alone:

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=SE1P" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about SE1P

What does an SE1P postcode tell you?: That the address lies in the SE1P district of the SE (South East London) postcode area, and the place OS Open Names most often lists first for its postcodes is Bermondsey. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 929 live postcodes.

Where the counts come from

ons-postcode-directory · version 2026-08 · Contains ONS, OS and Royal Mail data © Crown copyright and database right 2026, Open Government Licence v3.0. Northern Ireland postcodes are excluded: their reuse needs a Land & Property Services licence.
os-open-names · version 2026-11-01 · Contains OS data © Crown copyright and database right 2026, Open Government Licence v3.0.
uk-companies-house · version 2026-10-01 · Companies House free company data product, Open Government Licence v3.0

What each figure means, and what a district page never says, is set out in Reading a British postcode district page; the glossary defines a postcode district, a postcode area, a postcode directory and a street register.

Data synced on 2026-11-01: the newest version among the datasets listed above.

Districts nearest SE1P

SE171.0 km
SE11.1 km
SE161.9 km
EC3R2.0 km
EC3N2.1 km
EC3M2.1 km
EC4R2.1 km
SE112.2 km
SE52.2 km
EC3V2.3 km
EC4N2.4 km
E1W2.4 km
Every district
How a British address is written
Check any address

distance between the districts' centroids

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