United Kingdom Complete Address Format Guide
UK postcodes contain an outward code, a space, and a three-character inward code. Length varies, letters and digits are mixed, and the final format must preserve the space. Domestic numbers normally start with 0; when +44 is used, that trunk zero is removed. Geographic lengths and grouping vary by area, while mobile numbers commonly begin 07 domestically. Given name plus surname is the usual display order. Multiple given names, double-barrelled surnames, and titles such as Mr, Ms, Dr, or Prof should be stored separately.
Standard format
Emily Taylor / Oliver Wilson โ street โ A(A)N(A) NAA
Example
SW1A 1AA ยท +44 20 7946 0958
Implementation and validation notes
UK postcodes contain an outward code, a space, and a three-character inward code. Length varies, letters and digits are mixed, and the final format must preserve the space. Domestic numbers normally start with 0; when +44 is used, that trunk zero is removed. Geographic lengths and grouping vary by area, while mobile numbers commonly begin 07 domestically. Given name plus surname is the usual display order. Multiple given names, double-barrelled surnames, and titles such as Mr, Ms, Dr, or Prof should be stored separately.
Validate required state, character set, length, and syntax on the client, then repeat validation on the server. Preserve the original input and normalize into a separate field; never truncate local scripts, compound names, or leading zeroes to fit a single Western assumption.
This guide describes common formats rather than an official registry and cannot enumerate every exception. Generated output is for testing only, not delivery, calling, identity verification, or real account activity.
Postal code
A(A)N(A) NAA
UK postcodes contain an outward code, a space, and a three-character inward code. Length varies, letters and digits are mixed, and the final format must preserve the space.
Phone
+44 area/subscriber
Domestic numbers normally start with 0; when +44 is used, that trunk zero is removed. Geographic lengths and grouping vary by area, while mobile numbers commonly begin 07 domestically.
Names
Emily Taylor / Oliver Wilson
Given name plus surname is the usual display order. Multiple given names, double-barrelled surnames, and titles such as Mr, Ms, Dr, or Prof should be stored separately.
Related resources
Frequently asked questions
What is the standard United Kingdom address format?
A common representation is Emily Taylor / Oliver Wilson โ street โ A(A)N(A) NAA, for example SW1A 1AA ยท +44 20 7946 0958. UK postcodes contain an outward code, a space, and a three-character inward code. Length varies, letters and digits are mixed, and the final format must preserve the space. Domestic numbers normally start with 0; when +44 is used, that trunk zero is removed. Geographic lengths and grouping vary by area, while mobile numbers commonly begin 07 domestically. Given name plus surname is the usual display order. Multiple given names, double-barrelled surnames, and titles such as Mr, Ms, Dr, or Prof should be stored separately.
How should United Kingdom address test data be stored?
Store the original value as a string so leading zeroes, spaces, hyphens, accents, and local scripts are preserved. Use a separate normalized field for search.
Does correct formatting prove the data is real?
No. Syntax validation cannot prove an address is deliverable, a number is assigned, or a name belongs to a real person.