| Postcode | LD3 0YB | 
|---|---|
| Post Town | Brecon | 
| Nearest station | Cilmeri (18 km) | 
| Bus stops | Boughrood Village (NE) Village (SW) | 
| Roads in this postcode | |
| Number of UPRNs | 14 View | 
| Known addresses | Archdeacon Griffiths Primary School, Llyswen Greenpit, Llyswen River Cottage, Llyswen 4 Wyelands, Llyswen | 
| Main property type | Other | 
| Businesses | 
| Latitude | 52.036896 | |
|---|---|---|
| Longitude | -3.272436 | |
| Easting | 312814 | |
| Northing | 238375 | |
| Grid reference | SO128383 | |
| UTM reference | 30U 481312 5765176 | |
| what3words | pavement.replayed.unhappy | |
| FixPhrase | crisply lurch skating wand | |
| Plus code | 9C4R2PPH+Q2 | |
| Altitude | 104 metres (342 feet) | |
| Sunrise (today) | 7:07 | |
| Sunset (today) | 16:48 | |
| Distance away | ||
| Distance to sea | 58.1 KMs (36.1 miles) | 
| Parish | Bronllys | W04000256 | 
|---|---|---|
| Ward | Bronllys and Felin-fach | W05001122 | 
| Unitary Authority | Powys | W06000023 | 
| County | Powys | W11000006 | 
| Constituency (2024) | Brecon, Radnor and Cwm Tawe | W07000085 | 
| MP | David Chadwick | Liberal Democrat | 
| Police force | Dyfed-Powys | |
| Water company | Dwr Cymru Welsh Water | |
| NUTS/ITL 3 | Mid Wales | |
| 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) | 18 | |
|---|---|---|
| Households (2011) | 6 | |
| 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 village in a sparse setting | |
| Census output area (2021) | W00002292 | |
| Census output area (2011) | 1B3 | |
| Lower layer super output area (2021) | Powys 015A | W01000430 | 
| Lower layer super output area (2011) | Powys 015A | W01000430 | 
| Middle layer super output area (2021) | Hay-on-Wye & Talgarth | W02000111 | 
| Middle layer super output area (2011) | Hay-on-Wye & Talgarth | W02000111 | 
| Travel to work area | Brecon | W22000023 | 
| Average property price in Llandrindod Wells | £242,033 | 
|---|---|
| Annual change | -0.3% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| River Cottage, Llyswen | Other (freehold) | Mar 2018 | £460,000 | 
| Archdeacon Griffiths Primary School, Llyswen | Other (freehold) | Sep 2017 | £30,000 | 
| Other (freehold) | Dec 2016 | £250,000 | |
| 4 Wyelands, Llyswen | Semi-detached (freehold) | Aug 2014 | £187,000 | 
| Semi-detached (freehold) | Nov 2006 | £182,500 | |
| Semi-detached (freehold) | Apr 1996 | £48,000 | |
| Greenpit, Llyswen | Detached (freehold) | Jan 2002 | £145,000 |