| Postcode | HA1 3JY | 
|---|---|
| Post Town | Harrow | 
| Nearest station | South Harrow (0 km) | 
| Bus stops | Grange Road (HA2) (S) Grange Road (HA2) (N) South Harrow Bus Station (W) South Harrow Bus Station (N) Roxeth Hill (W) Roxeth Hill (E) | 
| London travel zone | 5 | 
| Roads in this postcode | |
| Number of UPRNs | 7 View | 
| Known addresses | Fourways, Mount Park Road, Harrow Hill House, Mount Park Road, Harrow Merrick, Mount Park Road, Harrow The Site, Mount Park Road, Harrow Timbers, Mount Park Road, Harrow 3 Mount Park Road, Harrow | 
| Main property type | Detached | 
| Businesses | 
| Latitude | 51.56329 | |
|---|---|---|
| Longitude | -0.34696 | |
| Easting | 514679 | |
| Northing | 186229 | |
| Grid reference | TQ146862 | |
| UTM reference | 30U 683884 5715803 | |
| what3words | stray.film.slide | |
| FixPhrase | cringing magician squabble twelve | |
| Plus code | 9C3XHM73+86 | |
| Altitude | 82 metres (268 feet) | |
| Sunrise (today) | 6:54 | |
| Sunset (today) | 16:38 | |
| Distance away | ||
| Distance to sea | 53.8 KMs (33.4 miles) | 
| Parish | Harrow, unparished area | E43000205 | 
|---|---|---|
| Ward | Harrow on the Hill | E05013547 | 
| London Borough | Harrow | E09000015 | 
| County | Greater London | E11000009 | 
| Constituency (2024) | Harrow West | E14001271 | 
| MP | Gareth Thomas | Labour | 
| Police force | Metropolitan Police | |
| Water company | Affinity Water | |
| Sewage company | Thames Water | |
| NUTS/ITL 3 | Harrow and Hillingdon | |
| 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) | 19 | |
|---|---|---|
| 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) | Harrow | E63011900 | 
| Census output area (2021) | E00010716 | |
| Census output area (2011) | 4C3 | |
| Lower layer super output area (2021) | Harrow 029B | E01002134 | 
| Lower layer super output area (2011) | Harrow 029B | E01002134 | 
| Middle layer super output area (2021) | Harrow-on-the-Hill | E02000461 | 
| Middle layer super output area (2011) | Harrow-on-the-Hill | E02000461 | 
| Travel to work area | Slough and Heathrow | E30000266 | 
| Average property price in Harrow | £533,144 | 
|---|---|
| Annual change | 0.3% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| Fourways, Mount Park Road, Harrow | Detached (freehold) | Aug 2022 | £1,400,000 | 
| The Site, Mount Park Road, Harrow | Semi-detached (freehold) | Feb 2020 | £1,450,000 | 
| Semi-detached (freehold) | Jan 2008 | £1,120,000 | |
| Hill House, Mount Park Road, Harrow | Detached (freehold) | Mar 2016 | £1,570,000 | 
| Detached (freehold) | Aug 2007 | £1,350,000 | |
| Detached (freehold) | Jun 2004 | £1,000,000 | |
| 3 Mount Park Road, Harrow | Detached (freehold) | Sep 2014 | £1,312,500 | 
| Detached (freehold) | Dec 1999 | £480,000 | |
| Merrick, Mount Park Road, Harrow | Semi-detached (freehold) | Dec 2011 | £941,000 | 
| Detached (freehold) | Apr 2002 | £830,000 | |
| Timbers, Mount Park Road, Harrow | Detached (freehold) | Aug 2003 | £600,000 |