| Postcode | TW8 9PP | 
|---|---|
| Post Town | Brentford | 
| Nearest station | Brentford (1 km) | 
| Bus stops | 
                       Challis Road (N) 
Great West Road Brentford (S) 
Windmill Road South Ealing (W) 
Darwin Road Brentford (N) 
Great West Road Brentford (N) 
Carlyle Road (N) 
                     | 
                  
| London travel zone | 4 | 
| Roads in this postcode | |
| Number of UPRNs | 17 View | 
| Known addresses | 
                       7 Challis Road, Brentford 
                            17 Challis Road, Brentford 
                            19 Challis Road, Brentford 
                            27 Challis Road, Brentford 
                            31 Challis Road, Brentford 
                       | 
                  
| Main property type | Semi-detached | 
| Businesses | 
| Latitude | 51.49227 | |
|---|---|---|
| Longitude | -0.306141 | |
| Easting | 517692 | |
| Northing | 178396 | |
| Grid reference | TQ176783 | |
| UTM reference | 30U 687004 5708010 | |
| what3words | worked.palm.rank | |
| FixPhrase | cringe magician sulfite twine | |
| Plus code | 9C3XFMRV+WG | |
| Altitude | 15 metres (49 feet) | |
| Sunrise (today) | 7:01 | |
| Sunset (today) | 16:30 | |
| Distance away | ||
| Distance to sea | 49.8 KMs (31 miles) | 
| Parish | Hounslow, unparished area | E43000208 | 
|---|---|---|
| Ward | Brentford West | E05013608 | 
| London Borough | Hounslow | E09000018 | 
| County | Greater London | E11000009 | 
| Constituency (2024) | Brentford and Isleworth | E14001124 | 
| MP | Ruth Cadbury | Labour | 
| Police force | Metropolitan Police | |
| Water company | Thames Water | |
| NUTS/ITL 3 | Hounslow and Richmond upon Thames | |
| NUTS/ITL 2 | Outer London - West and North 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) | 50 | |
|---|---|---|
| Households (2011) | 16 | |
| 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) | Hounslow | E63012107 | 
| Census output area (2021) | E00012750 | |
| Census output area (2011) | 4A3 | |
| Lower layer super output area (2021) | Hounslow 031E | E01002564 | 
| Lower layer super output area (2011) | Hounslow 003B | E01002564 | 
| Middle layer super output area (2021) | Brentford East | E02006973 | 
| Middle layer super output area (2011) | Brentford East | E02000528 | 
| Travel to work area | Slough and Heathrow | E30000266 | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 27 Challis Road, Brentford | Semi-detached (freehold) | Sep 2011 | £311,000 | 
| 7 Challis Road, Brentford | Semi-detached (freehold) | Feb 2008 | £335,000 | 
| Semi-detached (freehold) | Dec 2001 | £187,000 | |
| 19 Challis Road, Brentford | Semi-detached (freehold) | Oct 2007 | £365,000 | 
| Semi-detached (freehold) | Feb 1999 | £118,000 | |
| 31 Challis Road, Brentford | Semi-detached (freehold) | Apr 2000 | £170,000 | 
| 17 Challis Road, Brentford | Semi-detached (freehold) | Jun 1999 | £148,000 | 
| Semi-detached (freehold) | Feb 1999 | £116,500 |