The farm buildings of Tan y Lan include a cottage and outbuilding range, both stone built and depicted on the Tithe map . There are also two barns of corrugated iron in poor condition to the north and south of the farmyard. Two large modern barns of aerated blocks and sheet metal are located to the south-east

A short section of holloway runs from the farmyard to access the fields in the west of the farm. It has high banks topped with a hedgerow to either side. Part of the north-west side has some surviving stone wall. This route may have formerly connected with a track that runs north-east from the farmyard, although the section through the field nearest the farm does not survive.

The site and surrounding landscape is rural in nature and is characterised by enclosed field systems and isolated patches of woodland. Immediately adjacent to the site are the Scheduled Monuments of Garn Goch (CM037), Trichrug Cairns (CM327); both within 500m of the site as well as within the Character Area of Garn-Wen of the Registered Landscape of Outstanding Historic Interest Tywi Valley.

Reference: Report of an Archaeological Desk Based Assessment of Tan y Lan Farm, Bethlehem, carried out in 2023 by Archaeology Wales. Report No. 2166166.

RCAHMW, 2024.