| Postcode | SL1 1GZ | 
|---|---|
| Post Town | Slough | 
| Nearest station | Slough (0 km) | 
| Bus stops | Landmark Place (S) Wellington Street (E) Queensmere Centre (E) Library (E) Landmark Place (N) Queensmere (W) | 
| Roads in this postcode | |
| Number of UPRNs | 69 View | 
| Known addresses | Flat 1, 1 William Street, Slough Flat 10, 1 William Street, Slough Flat 11, 1 William Street, Slough Flat 12, 1 William Street, Slough Flat 13, 1 William Street, Slough Flat 14, 1 William Street, Slough Flat 15, 1 William Street, Slough Flat 16, 1 William Street, Slough Flat 17, 1 William Street, Slough Flat 18, 1 William Street, Slough Flat 2, 1 William Street, Slough Flat 20, 1 William Street, Slough Flat 21, 1 William Street, Slough Flat 22, 1 William Street, Slough Flat 23, 1 William Street, Slough Flat 24, 1 William Street, Slough Flat 25, 1 William Street, Slough Flat 26, 1 William Street, Slough Flat 27, 1 William Street, Slough Flat 28, 1 William Street, Slough Flat 29, 1 William Street, Slough Flat 3, 1 William Street, Slough Flat 30, 1 William Street, Slough Flat 31, 1 William Street, Slough Flat 32, 1 William Street, Slough Flat 33, 1 William Street, Slough Flat 34, 1 William Street, Slough Flat 35, 1 William Street, Slough Flat 36, 1 William Street, Slough Flat 37, 1 William Street, Slough Flat 38, 1 William Street, Slough Flat 39, 1 William Street, Slough Flat 4, 1 William Street, Slough Flat 40, 1 William Street, Slough Flat 41, 1 William Street, Slough Flat 42, 1 William Street, Slough Flat 43, 1 William Street, Slough Flat 44, 1 William Street, Slough Flat 45, 1 William Street, Slough Flat 46, 1 William Street, Slough Flat 47, 1 William Street, Slough Flat 48, 1 William Street, Slough Flat 49, 1 William Street, Slough Flat 5, 1 William Street, Slough Flat 50, 1 William Street, Slough Flat 51, 1 William Street, Slough Flat 52, 1 William Street, Slough Flat 53, 1 William Street, Slough Flat 54, 1 William Street, Slough Flat 55, 1 William Street, Slough Flat 56, 1 William Street, Slough Flat 57, 1 William Street, Slough Flat 58, 1 William Street, Slough Flat 59, 1 William Street, Slough Flat 6, 1 William Street, Slough Flat 60, 1 William Street, Slough Flat 61, 1 William Street, Slough Flat 62, 1 William Street, Slough Flat 63, 1 William Street, Slough Flat 64, 1 William Street, Slough Flat 7, 1 William Street, Slough Flat 8, 1 William Street, Slough Flat 9, 1 William Street, Slough | 
| Main property type | Flat | 
| Businesses | 
| Latitude | 51.509862 | |
|---|---|---|
| Longitude | -0.595691 | |
| Easting | 497553 | |
| Northing | 179927 | |
| Grid reference | SU975799 | |
| UTM reference | 30U 666842 5709266 | |
| what3words | lately.spit.gent | |
| FixPhrase | cringing maggot scouts vocalist | |
| Plus code | 9C3XGC53+WP | |
| Altitude | 31 metres (100 feet) | |
| Sunrise (today) | 6:55 | |
| Sunset (today) | 16:39 | |
| Distance away | ||
| Distance to sea | 70 KMs (43.5 miles) | 
| Parish | Slough, unparished area | E43000235 | 
|---|---|---|
| Ward | Slough Central | E05015542 | 
| Unitary Authority | Slough | E06000039 | 
| County | Berkshire | E11000002 | 
| Constituency (2024) | Slough | E14001477 | 
| MP | Mr Tanmanjeet Singh Dhesi | Labour | 
| Police force | Thames Valley | |
| NUTS/ITL 3 | Berkshire East | |
| NUTS/ITL 2 | Berkshire, Buckinghamshire and Oxfordshire | |
| NUTS/ITL 1 | South East | |
| Country | England | E92000001 | 
| Date introduced | October 2020 | 
|---|---|
| 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 | 
| 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 city and town | |
| Built up area (2024) | Slough | E63012046 | 
| Census output area (2021) | E00166690 | |
| Census output area (2011) | 3D1 | |
| Lower layer super output area (2021) | Slough 009G | E01032730 | 
| Lower layer super output area (2011) | Slough 009G | E01032730 | 
| Middle layer super output area (2021) | Chalvey | E02003415 | 
| Middle layer super output area (2011) | Chalvey | E02003415 | 
| Travel to work area | Slough and Heathrow | E30000266 | 
| Average property price in Slough | £515,972 | 
|---|---|
| Annual change | 0.1% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| Flat 11, 1 William Street, Slough | Flat (leasehold) | Mar 2024 | £187,500 | 
| New build flat (leasehold) | Aug 2021 | £240,000 | |
| Flat 28, 1 William Street, Slough | New build flat (leasehold) | Oct 2023 | £202,500 | 
| Flat 16, 1 William Street, Slough | New build flat (leasehold) | Oct 2023 | £199,950 | 
| Flat 54, 1 William Street, Slough | New build flat (leasehold) | Jun 2023 | £232,750 | 
| Flat 44, 1 William Street, Slough | New build flat (leasehold) | Jun 2023 | £224,000 | 
| Flat 18, 1 William Street, Slough | New build flat (leasehold) | Mar 2023 | £211,750 | 
| Flat 46, 1 William Street, Slough | New build flat (leasehold) | Mar 2023 | £222,250 | 
| Flat 57, 1 William Street, Slough | New build flat (leasehold) | Mar 2023 | £225,750 | 
| Flat 25, 1 William Street, Slough | New build flat (leasehold) | Mar 2023 | £203,000 | 
| Flat 15, 1 William Street, Slough | New build flat (leasehold) | Mar 2023 | £199,950 |