| Postcode | W1U 5AJ |
|---|---|
| Post Town | London |
| Nearest station | Baker Street (0 km) |
| Bus stops |
Baker Street Station (E)
Dorset Street (S)
York Street (N)
Baker Street Station (S)
Gloucester Place (W)
Dorset Street (N)
|
| London travel zone | 1 |
| Roads in this postcode | |
| Number of UPRNs | 21 View |
| Known addresses |
Flat 1A, Portman Mansions, Chiltern Street, London
Flat 1B, Portman Mansions, Chiltern Street, London
Flat 1C, Portman Mansions, Chiltern Street, London
Flat 1D, Portman Mansions, Chiltern Street, London
Flat 1F, Portman Mansions, Chiltern Street, London
Flat 1G, Portman Mansions, Chiltern Street, London
Flat 1K, Portman Mansions, Chiltern Street, London
Flat 1L, Portman Mansions, Chiltern Street, London
Flat 1M, Portman Mansions, Chiltern Street, London
Penthouse 1, Portman Mansions, Chiltern Street, London
|
| Main property type | Flat |
| Businesses |
| Latitude | 51.521983 | |
|---|---|---|
| Longitude | -0.156057 | |
| Easting | 528027 | |
| Northing | 181952 | |
| Grid reference | TQ280819 | |
| UTM reference | 30U 697292 5711708 | |
| what3words | glass.truth.quest | |
| Plus code | 9C3XGRCV+QH | |
| Altitude | 37 metres (120 feet) | |
| Sunrise (today) | 4:44 | |
| Sunset (today) | 21:23 | |
| Distance away | ||
| Distance to sea | 40 KMs (24.8 miles) |
| Parish | Westminster, unparished area | E43000236 |
|---|---|---|
| Ward | Marylebone | E05013801 |
| 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 | October 2000 |
|---|---|
| Last updated | June 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) | 21 | |
|---|---|---|
| Households (2011) | 11 | |
| Index of Multiple Deprivation (2019) |
Most deprivedLeast deprived
|
|
| Average household income (2020) |
Lowest (£22,200)
Highest (£108,100)
|
|
| Rural/urban | Urban major conurbation | |
| Built up area (2024) | City of Westminster | E63012036 |
| Census output area (2021) | E00023822 | |
| Census output area (2011) | E00023822 | |
| Lower layer super output area (2021) | Westminster 008C | E01004712 |
| Lower layer super output area (2011) | Westminster 008C | E01004712 |
| Middle layer super output area (2021) | Regent's Park | E02000967 |
| Middle layer super output area (2011) | Regent's Park | E02000967 |
| Travel to work area | London | E30000234 |
| Average property price in West London | £784,785 |
|---|---|
| Annual change | -9.8% |
| Address | Type | Date | Price |
|---|---|---|---|
| Flat 1A, Portman Mansions, Chiltern Street, London | Flat (leasehold) | Mar 2024 | £1,575,000 |
| Flat 1L, Portman Mansions, Chiltern Street, London | Flat (leasehold) | Dec 2023 | £1,425,000 |
| Flat 1B, Portman Mansions, Chiltern Street, London | Flat (leasehold) | Sep 2023 | £1,150,000 |
| Flat (leasehold) | Jun 2013 | £985,000 | |
| Flat (leasehold) | Mar 2006 | £575,000 | |
| Flat (leasehold) | Feb 2001 | £385,000 | |
| Flat (leasehold) | Dec 1998 | £230,000 | |
| Flat 1F, Portman Mansions, Chiltern Street, London | Flat (leasehold) | Oct 2011 | £1,575,000 |
| Flat (leasehold) | Apr 2011 | £1,075,000 | |
| Penthouse 1, Portman Mansions, Chiltern Street, London | Flat (leasehold) | Oct 2009 | £725,000 |
| Flat (leasehold) | Jun 2000 | £318,000 | |
| Flat 1D, Portman Mansions, Chiltern Street, London | Flat (leasehold) | Aug 2009 | £850,000 |
| Flat (leasehold) | Oct 2001 | £560,000 | |
| Flat (leasehold) | Aug 1997 | £287,000 | |
| Flat 1K, Portman Mansions, Chiltern Street, London | Flat (leasehold) | May 2006 | £940,000 |
| Flat (leasehold) | Mar 2000 | £490,000 | |
| Flat (leasehold) | Aug 1999 | £395,000 | |
| Flat 1M, Portman Mansions, Chiltern Street, London | Flat (leasehold) | Sep 2005 | £1,000,000 |
| Flat (leasehold) | May 2001 | £575,000 | |
| Flat (leasehold) | Mar 1996 | £328,000 | |
| Flat 1G, Portman Mansions, Chiltern Street, London | Flat (leasehold) | Jul 2002 | £775,000 |
| Flat 1C, Portman Mansions, Chiltern Street, London | Flat (leasehold) | Mar 2001 | £475,000 |
| Flat (leasehold) | May 2000 | £285,000 |