Map of SW1A 1HA postcode

Geography
Latitude 51.506891
Longitude -0.138812
Easting 529266
Northing 180304
Grid reference TQ292803
UTM reference 30U 698554 5710077
what3words amused.merit.faster
Plus code 9C3XGV46+QF
Altitude 27 metres (87 feet)
Sunrise (today) 5:35
Sunset (today) 20:22
Distance away
Distance to sea 38.5 KMs (23.9 miles)
Administrative areas
ParishWestminster, unparished areaE43000236
Ward St James's E05013806
London Borough Westminster E09000033
County Greater London E11000009
Constituency (2024) Cities of London and Westminster E14001172
MPRachel BlakeLabour
Police forceMetropolitan Police
Water companyThames Water
NUTS/ITL 3 Westminster and City of London
NUTS/ITL 2 Inner London - West
NUTS/ITL 1 London
Country England E92000001
Data
Date introduced January 1980
Last updated February 2025
User type Small (addresses receive less than 25 items of mail per day)
Quality Within the building of the matched address closest to the postcode mean
Demographics
Population (2011) 5
Households (2011) 4
Index of Multiple Deprivation (2019)
24,862 / 32,844
Most deprivedLeast deprived
Average household income (2020)
£68,500
Lowest (£22,200) Highest (£108,100)
Rural/urbanUrban major conurbation
Built up area (2024)City of WestminsterE63012036
Census output area (2021)E00023937
Census output area (2011)E00023937
Lower layer super output area (2021)Westminster 018CE01004736
Lower layer super output area (2011)Westminster 018CE01004736
Middle layer super output area (2021)Strand, St James & MayfairE02000977
Middle layer super output area (2011)Strand, St James & MayfairE02000977
Travel to work areaLondonE30000234
Property sales
Average property price in South West London £737,855
Annual change -5.2%
View all properties sold in the SW postcode area
Properties recently sold in this postcode
AddressTypeDatePrice
27 St James's Street, LondonOther (leasehold)Dec 2017£1,050,000
Third Floor Premises, 25 St James's Street, LondonFlat (leasehold)Apr 2008£250,000


View all properties sold in the SW1A 1 sector

Contains HM Land Registry data © Crown copyright and database right 2025. This data is licensed under the Open Government Licence v3.0.
Contains OS data © Crown copyright and database right 2025
Contains Royal Mail data © Royal Mail copyright and database right 2025
Contains National Statistics data © Crown copyright and database rights 2025
Source: Office for National Statistics licensed under the Open Government Licence v.3.0
Contains data from Wikipedia covered by the Creative Commons license