| Postcode | SW1X 9HH |
|---|---|
| Post Town | London |
| Nearest station | Knightsbridge (0 km) |
| Bus stops |
Knightsbridge Station Harrods (W)
Pont Street (S)
Knightsbridge Station (N)
Knightsbridge Station Harrods (SW)
Hyde Park Corner (E)
Hyde Park Corner (W)
|
| London travel zone | 1 |
| Roads in this postcode | |
| Number of UPRNs | 10 View |
| Known addresses |
Flat 1, William Street House, William Street, London
Flat 5, William Street House, William Street, London
1 William Street House, 1 - 9 William Street, London
|
| Main property type | Flat |
| Businesses |
| Latitude | 51.501714 | |
|---|---|---|
| Longitude | -0.158248 | |
| Easting | 527932 | |
| Northing | 179694 | |
| Grid reference | TQ279796 | |
| UTM reference | 30U 697228 5709449 | |
| what3words | cherry.nets.trend | |
| FixPhrase | cringing magnesium sassy untimely | |
| Plus code | 9C3XGR2R+MP | |
| Altitude | 21 metres (69 feet) | |
| Sunrise (today) | 7:16 | |
| Sunset (today) | 16:16 | |
| Distance away | ||
| Distance to sea | 39.8 KMs (24.7 miles) |
| Parish | Westminster, unparished area | E43000236 |
|---|---|---|
| Ward | Knightsbridge & Belgravia | E05013797 |
| London Borough | Westminster | E09000033 |
| County | Greater London | E11000009 |
| Constituency (2024) | Cities of London and Westminster | E14001172 |
| MP | Rachel Blake | Labour |
| Police force | Metropolitan Police | |
| Water company | Thames Water | |
| NUTS/ITL 3 | Westminster and City of London | |
| NUTS/ITL 2 | Inner London - West | |
| NUTS/ITL 1 | London | |
| Country | England | E92000001 |
| Date introduced | January 1980 |
|---|---|
| Last updated | September 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 |
| Population (2011) | 13 | |
|---|---|---|
| Households (2011) | 7 | |
| Index of Multiple Deprivation (2019) |
Most deprivedLeast deprived
|
|
| Average household income (2020) |
Lowest (£22,200)
Highest (£108,100)
|
|
| Rural/urban (2021) | Urban: Nearer to a major town or city | |
| Rural/urban (2011) | Urban major conurbation | |
| Built up area (2024) | City of Westminster | E63012036 |
| Census output area (2021) | E00023668 | |
| Census output area (2011) | 2D3 | |
| Lower layer super output area (2021) | Westminster 019E | E01004691 |
| Lower layer super output area (2011) | Westminster 019E | E01004691 |
| Middle layer super output area (2021) | Knightsbridge, Belgravia & Hyde Park | E02000978 |
| Middle layer super output area (2011) | Knightsbridge, Belgravia & Hyde Park | E02000978 |
| Travel to work area | London | E30000234 |
| Average property price in South West London | £704,473 |
|---|---|
| Annual change | -8.0% |
| Address | Type | Date | Price |
|---|---|---|---|
| 1 William Street House, 1 - 9 William Street, London | Flat (leasehold) | Apr 2009 | £270,000 |
| Flat 5, William Street House, William Street, London | Flat (leasehold) | Aug 2004 | £1,850,000 |
| Flat (leasehold) | Jul 2002 | £1,250,000 | |
| Flat (leasehold) | Aug 1999 | £763,250 | |
| Flat 1, William Street House, William Street, London | Flat (leasehold) | Jan 1996 | £400,000 |