Bryngwyn Hall, a nineteenth-century house (nprn 35705), lies to the east of Tremeirchion (NPRN 35705). Located in parkland (700249) the house itself is surrounded by gardens.
Early Ordnance Survey maps portray a parkland landscape comprising some large areas of woodland with open wood-pasture surrounding the house, ponds to its north-east, and a drive without lodge. 

The garden is enclosed on all sides by a band of woodland planting. The south front has a lawn with informal planting of specimen ornamental trees. This leads into the wood on the west side of the house. On the east side of the house are the remains of a small formal garden of two terraces. A rockface lies hard against the house on the west side with woodland above. A rustic summerhouse has heather thatching on its roof and sides.

A kitchen garden once lay to the north of the house. As portrayed on the first-edition Ordnance Survey map (1871) the garden enclosure was sub-rectangular, long axis north by south, with a rectangular layout of paths. It now survives as a rectangle of rough grass but some of the perimeter beech hedging remains as do some fruit trees. The remains of a small 1930s greenhouse survive on the northern end of the site. The 1871 map shows that orchards were laid out around the kitchen garden on its north, east, and west sides.
Aerial imagery shows that much of the area north of the nineteenth-century farmyard is now occupied by more recent agricultural buildings.

Sources:
Cadw 1995: Register of Parks and Gardens of Special Historic Interest in Wales, Clwyd, 10-12 (ref: PGW(C)56).
Ordnance Survey, six-inch map Flintshire V (first edition 1871); 25-inch map: sheet Flintshire V.14 (second edition 1899).
RCAHMW air photos: 94-CS 1571; 945168/57.
Additional notes: D.K.Leighton.

RCAHMW, 15 June 2022