| Postcode | SO14 6HA | 
|---|---|
| Post Town | Southampton | 
| Nearest station | St Denys (1 km) | 
| Bus stops | Denzil Avenue (SW) Aldi Store (SW) Aldi Store (N) Cedar Road (W) Cedar Road (E) Archers Road (S) | 
| Roads in this postcode | |
| Number of UPRNs | 10 View | 
| Known addresses | 2B Castle Street, Southampton 4 Castle Street, Southampton 6 Castle Street, Southampton 8 Castle Street, Southampton 10 Castle Street, Southampton 12 Castle Street, Southampton 14 Castle Street, Southampton 16 Castle Street, Southampton 18 Castle Street, Southampton | 
| Main property type | Terraced | 
| Businesses | 
| Latitude | 50.916065 | |
|---|---|---|
| Longitude | -1.398371 | |
| Easting | 442390 | |
| Northing | 113128 | |
| Grid reference | SU423131 | |
| UTM reference | 30U 612585 5641712 | |
| what3words | units.drama.drain | |
| FixPhrase | cricket macarena sensitive thimble | |
| Plus code | 9C2WWJ82+CM | |
| Altitude | 16 metres (54 feet) | |
| Sunrise (today) | 6:56 | |
| Sunset (today) | 16:43 | |
| Distance away | ||
| Distance to sea | 1 KMs (0.6 miles) | 
| Parish | Southampton, unparished area | E43000036 | 
|---|---|---|
| Ward | Bevois | E05015493 | 
| Unitary Authority | Southampton | E06000045 | 
| County | Hampshire | E10000014 | 
| Constituency (2024) | Southampton Test | E14001500 | 
| MP | Satvir Kaur | Labour | 
| Police force | Hampshire | |
| Water company | Southern Water | |
| NUTS/ITL 3 | Southampton | |
| NUTS/ITL 2 | Hampshire and Isle of Wight | |
| NUTS/ITL 1 | South East | |
| Country | England | E92000001 | 
| Date introduced | December 1994 | 
|---|---|
| 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) | 24 | |
|---|---|---|
| Households (2011) | 10 | |
| 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) | Southampton | E63013524 | 
| Census output area (2021) | E00086634 | |
| Census output area (2011) | 4A2 | |
| Lower layer super output area (2021) | Southampton 017D | E01017160 | 
| Lower layer super output area (2011) | Southampton 017D | E01017160 | 
| Middle layer super output area (2021) | Bevois Town | E02003565 | 
| Middle layer super output area (2011) | Bevois Town | E02003565 | 
| Travel to work area | Southampton | E30000267 | 
| Average property price in Southampton | £347,850 | 
|---|---|
| Annual change | 0.5% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 10 Castle Street, Southampton | Terraced (freehold) | Jul 2025 | £260,000 | 
| Terraced (freehold) | Jul 2004 | £200,000 | |
| 16 Castle Street, Southampton | Terraced (freehold) | Dec 2021 | £175,000 | 
| Terraced (freehold) | Nov 2013 | £143,000 | |
| Terraced (freehold) | Oct 2005 | £162,500 | |
| Terraced (freehold) | Nov 1998 | £68,500 | |
| Terraced (freehold) | May 1997 | £53,500 | |
| 2B Castle Street, Southampton | Terraced (freehold) | Jun 2015 | £189,277 | 
| Terraced (freehold) | Feb 2002 | £118,000 | |
| Terraced (freehold) | Feb 2001 | £94,500 | |
| Terraced (freehold) | Jan 1999 | £74,500 | |
| 12 Castle Street, Southampton | Terraced (freehold) | Jan 2015 | £195,000 | 
| 8 Castle Street, Southampton | Terraced (freehold) | Jun 2011 | £191,000 | 
| Terraced (freehold) | Aug 2001 | £109,950 | |
| 6 Castle Street, Southampton | Terraced (freehold) | Jun 2007 | £186,957 | 
| Terraced (freehold) | Mar 2000 | £89,950 | |
| Terraced (freehold) | Jul 1997 | £68,000 | |
| 14 Castle Street, Southampton | Terraced (freehold) | Aug 2004 | £215,000 | 
| Terraced (freehold) | Aug 2000 | £107,500 | |
| Terraced (freehold) | Feb 1995 | £55,000 | |
| 4 Castle Street, Southampton | Terraced (freehold) | Mar 2001 | £102,000 | 
| Terraced (freehold) | Sep 1999 | £85,000 | |
| Terraced (freehold) | Jan 1997 | £48,000 | |
| 18 Castle Street, Southampton | Terraced (freehold) | Apr 1997 | £58,000 |