| Postcode | SA18 2RN | 
|---|---|
| Post Town | Ammanford | 
| Nearest station | Pantyffynnon (1 km) | 
| Bus stops | Lon-y-Felin (NW) Lon-y-Felin (SE) | 
| Roads in this postcode | |
| Number of UPRNs | 28 View | 
| Known addresses | 9 Heol Y Garn, Garnswllt 16 Heol Y Garn, Garnswllt 32 Heol Y Garn, Garnswllt 36 Heol Y Garn, Garnswllt 40 Heol Y Garn, Garnswllt 42 Heol Y Garn, Garnswllt 44 Heol Y Garn, Garnswllt 46 Heol Y Garn, Garnswllt 51 Heol Y Garn, Garnswllt 52 Heol Y Garn, Garnswllt 53 Heol Y Garn, Garnswllt 60 Heol Y Garn, Garnswllt 61 Heol Y Garn, Garnswllt 63 Heol Y Garn, Garnswllt 65 Heol Y Garn, Garnswllt 82 Heol Y Garn, Garnswllt | 
| Main property type | Semi-detached | 
| Businesses | 
| Latitude | 51.769424 | |
|---|---|---|
| Longitude | -3.991016 | |
| Easting | 262714 | |
| Northing | 209737 | |
| Grid reference | SN627097 | |
| UTM reference | 30U 431618 5735857 | |
| what3words | unlimited.picked.cabbages | |
| FixPhrase | crinkly lunacy stark unexpired | |
| Plus code | 9C3RQ295+QH | |
| Altitude | 60 metres (197 feet) | |
| Sunrise (today) | 7:04 | |
| Sunset (today) | 16:57 | |
| Distance away | ||
| Distance to sea | 8.5 KMs (5.3 miles) | 
| Parish | Mawr | W04000581 | 
|---|---|---|
| Ward | Pontarddulais | W05001062 | 
| Unitary Authority | Swansea | W06000011 | 
| County | West Glamorgan | W11000008 | 
| Constituency (2024) | Gower | W07000097 | 
| MP | Tonia Antoniazzi | Labour | 
| Police force | South Wales | |
| Water company | Dwr Cymru Welsh Water | |
| NUTS/ITL 3 | Swansea | |
| NUTS/ITL 2 | Mid and South West Wales | |
| NUTS/ITL 1 | Wales | |
| Country | Wales | W92000004 | 
| 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) | 52 | |
|---|---|---|
| Households (2011) | 23 | |
| Index of Multiple Deprivation (2019) | Most deprivedLeast deprived | |
| Average household income (2020) | Lowest (£22,200)
                        Highest (£108,100)
                       | |
| Rural/urban (2021) | Smaller rural: Further from a major town or city | |
| Rural/urban (2011) | Rural hamlet and isolated dwellings | |
| Census output area (2021) | W00004306 | |
| Census output area (2011) | 1B3 | |
| Lower layer super output area (2021) | Swansea 002F | W01000803 | 
| Lower layer super output area (2011) | Swansea 002F | W01000803 | 
| Middle layer super output area (2021) | Clydach & Mawr | W02000169 | 
| Middle layer super output area (2011) | Clydach & Mawr | W02000169 | 
| Travel to work area | Swansea | W22000032 | 
| Average property price in Swansea | £199,131 | 
|---|---|
| Annual change | 2.4% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 32 Heol Y Garn, Garnswllt | Detached (freehold) | May 2025 | £380,000 | 
| Detached (freehold) | Apr 2020 | £305,000 | |
| Detached (freehold) | May 2017 | £280,000 | |
| Detached (freehold) | Mar 2010 | £60,000 | |
| 40 Heol Y Garn, Garnswllt | Detached (freehold) | Apr 2024 | £343,000 | 
| Detached (freehold) | May 2016 | £188,000 | |
| Detached (freehold) | Mar 2006 | £182,500 | |
| Detached (freehold) | Dec 2001 | £115,000 | |
| Detached (freehold) | Sep 2000 | £95,000 | |
| 65 Heol Y Garn, Garnswllt | Terraced (freehold) | Jul 2022 | £130,000 | 
| 60 Heol Y Garn, Garnswllt | Semi-detached (freehold) | Jul 2021 | £142,500 | 
| Semi-detached (freehold) | Dec 2020 | £80,000 | |
| 42 Heol Y Garn, Garnswllt | Semi-detached (freehold) | Apr 2021 | £109,995 | 
| Semi-detached (freehold) | Nov 2009 | £70,000 | |
| 44 Heol Y Garn, Garnswllt | Semi-detached (freehold) | Nov 2020 | £115,000 | 
| Semi-detached (freehold) | Aug 2004 | £88,500 | |
| 52 Heol Y Garn, Garnswllt | Semi-detached (freehold) | Feb 2018 | £180,000 | 
| Semi-detached (freehold) | Oct 2000 | £33,000 | |
| 82 Heol Y Garn, Garnswllt | Detached (freehold) | Nov 2017 | £202,500 | 
| Detached (freehold) | Dec 1999 | £93,000 | |
| 51 Heol Y Garn, Garnswllt | Semi-detached (freehold) | Sep 2017 | £120,000 | 
| Semi-detached (freehold) | Dec 2011 | £117,000 | |
| 46 Heol Y Garn, Garnswllt | Semi-detached (freehold) | Aug 2017 | £99,995 | 
| Semi-detached (freehold) | Aug 2013 | £81,500 | |
| Semi-detached (freehold) | Nov 2010 | £76,500 | |
| Semi-detached (freehold) | May 2008 | £80,000 |