Grade I Listed Buildings in the Historic County of Brecknockshire
IKeep at Bronllys Castle Located strategically near the crossing of the Llynfi River, perched on a motte approximately 6m high
IChurch of St Ellywe Located at the head of the Cwm Rhyd-Ellywe, within a raised oval walled churchyard, on a small plateau beneath the Rh_s fawr.
IGatehouse to Great Porthamel Located axially on the approach to Great Porthamel farmhouse, below the NW side of the main road from Talgarth to Hay.
ITrefecca Fawr Located south of Trefeca hamlet, on a minor lane, approximately 100m from its junction with B.4560 Talgarth to Llangors road.
IOld Gwernyfed Located on NW side of road from Talgarth to Felindre, and set within its own grounds at the end of an axial driveway from the entrance gates on the road. The former farm buildings lie immediately to
IChurch of Saint David In a prominent position in Llanddew, in the churchyard just W of the crossroads in the centre of the village.
IChurch of Saint Matthew In the churchyard in the centre of Llandefalle some 900m W of the A470.
IChurch of St Bilo In a prominent position in the centre of the village of Llanfilo.
ITreberfydd (also known as Treberfedd) On rising ground above the S shore of Lake Llangorse, overlooking the Lake and Mynydd Troed, standing in a large garden and parkland reached by front and rear drives.
IChurch of Saint Cynog Situated in large churchyard in the centre of Defynnog village.
IChurch of Saint David Situated some 1.2 km NW of Trecastle, on N side of A40, and E side of road to Tirabad.
IThe Tower At the S edge of Scethrog hamlet, bordering the River Usk, on a mound and surrounded by a vestigial moat within a stone walled garden. Reached off S side of A40.
IPorth-Mawr Gatehouse Forward to the street and set into a long rubble crenelated wall now enclosing Porth Mawr house but formerly the castellated Herbert family mansion called Cwrt-y-Carw. Gatehouse adjoins side of house
ICrickhowell Castle (remains of) Situated to the SE of the High Street in Recreation Ground between Castle Road and Beaufort Street.
ICrickhowell Bridge Situated to SW of and below the town, spanning the River Usk and partly in Llangattock Community Council.
IHay Castle Dominating the town with Back Fold, Castle Lane and Oxford Road bordering the castle grounds.
ITheatre at Craig-y-nos The theatre is attached to the NW of the house with entrance from the corner of the front courtyard.
ITretower Court Approximately 150m S of the parish church on W side of a minor road between Tretower and A40
ITretower Castle Prominently sited SW of church on S side of Ty Llys farm, W of Tretower Court. Farm buildings are contained within the bailey walls
ICrickhowell Bridge (partly in Crickhowell community) Located between Crickhowell and Llangattock communities 0.4km NE of the Church of St. Cattwg. The bridge crosses the River Usk, and extends southwards, with its southernmost arch spanning the Nant O