St Lythans is an affluent hamlet and former parish in the Vale of Glamorgan, southeast Wales, just outside western Cardiff. It lies southwest of Culverhouse Cross, west of Wenvoe and southwest of Twyn-yr-Odyn and is also connected by road from Dyffryn and the Five Mile Lane in the west. It is one of the wealthiest communities in the Vale of Glamorgan, containing some notable mansions and cottages, valued on average at over £500,000 as of 2011. The megalithic St Lythans burial chamber, over 6000 years old, lies 1 km to the west of the village and the hamlet also contains the St.Lythans Parish Church or Church of St Bleddian, a Grade II* listed building.

Goldsland is a small hamlet and farm in the Vale of Glamorgan in south Wales. It is located near the boundary of the Wenvoe Castle Golf Club in the parish of Wenvoe. It lies to the east of Dyffryn and south of St Lythans and the road leading from the west passes through the farms of Old and New Wallace. Goldsland Brook flows through here. A sub-manor was reportedly held at Goldsland by a Mathew of Llandaff under the manor of Wenvoe in 1583.