| Postcode | SL3 8RQ | 
|---|---|
| Post Town | Slough | 
| Nearest station | Langley (1 km) | 
| Bus stops | Spencer Road South (E) Trelawney Ave (S) Trelawney Ave (N) Hampden Road (SW) Nash Road (N) Langley Road (S) | 
| Roads in this postcode | |
| Number of UPRNs | 25 View | 
| Known addresses | 129 Trelawney Avenue, Slough 131 Trelawney Avenue, Slough 137 Trelawney Avenue, Slough 139 Trelawney Avenue, Slough 141 Trelawney Avenue, Slough 149 Trelawney Avenue, Slough 153 Trelawney Avenue, Langley 155 Trelawney Avenue, Slough 157 Trelawney Avenue, Langley 159 Trelawney Avenue, Slough 163 Trelawney Avenue, Slough 165 Trelawney Avenue, Slough 169 Trelawney Avenue, Slough | 
| Main property type | Terraced | 
| Businesses | 
| Latitude | 51.50057 | |
|---|---|---|
| Longitude | -0.549599 | |
| Easting | 500772 | |
| Northing | 178956 | |
| Grid reference | TQ007789 | |
| UTM reference | 30U 670075 5708339 | |
| what3words | year.mixer.paths | |
| FixPhrase | cringing maggot santa unneeded | |
| Plus code | 9C3XGF22+65 | |
| Altitude | 27 metres (87 feet) | |
| Sunrise (today) | 6:55 | |
| Sunset (today) | 16:38 | |
| Distance away | ||
| Distance to sea | 66.7 KMs (41.4 miles) | 
| Parish | Slough, unparished area | E43000235 | 
|---|---|---|
| Ward | Langley Marish | E05015537 | 
| Unitary Authority | Slough | E06000039 | 
| County | Berkshire | E11000002 | 
| Constituency (2024) | Windsor | E14001588 | 
| MP | Jack Rankin | Conservative | 
| Police force | Thames Valley | |
| Water company | Thames Water | |
| NUTS/ITL 3 | Berkshire East | |
| NUTS/ITL 2 | Berkshire, Buckinghamshire and Oxfordshire | |
| NUTS/ITL 1 | South East | |
| 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) | 69 | |
|---|---|---|
| Households (2011) | 24 | |
| 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) | E00083330 | |
| Census output area (2011) | 4A1 | |
| Lower layer super output area (2021) | Slough 012D | E01016503 | 
| Lower layer super output area (2011) | Slough 012D | E01016503 | 
| Middle layer super output area (2021) | Langley Kederminster | E02003418 | 
| Middle layer super output area (2011) | Langley Kederminster | E02003418 | 
| Travel to work area | Slough and Heathrow | E30000266 | 
| Average property price in Slough | £515,972 | 
|---|---|
| Annual change | 0.1% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 153 Trelawney Avenue, Langley | Terraced (freehold) | Jun 2023 | £425,000 | 
| 157 Trelawney Avenue, Langley | Terraced (freehold) | Dec 2019 | £360,000 | 
| 137 Trelawney Avenue, Slough | Semi-detached (freehold) | Aug 2014 | £345,000 | 
| 159 Trelawney Avenue, Slough | Terraced (freehold) | Jul 2009 | £186,000 | 
| Terraced (freehold) | Jul 2001 | £120,000 | |
| Terraced (freehold) | Jul 1998 | £83,000 | |
| Terraced (freehold) | May 1995 | £62,250 | |
| 169 Trelawney Avenue, Slough | Terraced (freehold) | Jun 2007 | £206,000 | 
| Terraced (freehold) | Dec 1997 | £68,000 | |
| 149 Trelawney Avenue, Slough | Semi-detached (freehold) | Feb 2007 | £200,000 | 
| 141 Trelawney Avenue, Slough | Semi-detached (freehold) | Jan 2005 | £175,000 | 
| 131 Trelawney Avenue, Slough | Semi-detached (freehold) | Nov 2001 | £150,000 | 
| 129 Trelawney Avenue, Slough | Semi-detached (freehold) | Mar 2001 | £135,000 | 
| 155 Trelawney Avenue, Slough | Terraced (freehold) | Jul 1999 | £89,000 |