High Glanau

UK, United Kingdom

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High Glanau, also known as High Glanau Manor, is an Arts and Crafts‑style country house in Monmouthshire, Wales, located a few miles northwest of Monmouth near the village of Trellech.

The house itself is a Grade II* listed building, designed in a traditional vernacular style with stone‑hung walls, multiple gables, and dramatic chimney stacks, and it sits on a steep hillside with sweeping views over the Vale of Usk toward the Brecon Beacons.

The property is most famous for its 12‑acre garden, laid out between 1922 and 1929 by the architectural historian and garden designer H. Avray Tipping, who made it his last home; the terraced gardens, stone‑walled steps, octagonal pond, glasshouse, pergola, and mixed woodland planting are all listed at Grade II* for their historic importance.

Today the manor and garden operate mainly as a private residence and are occasionally open to visitors for pre‑booked tours, garden events, and plant fairs, retaining the feel of an intimate, early‑20th‑century Arts and Crafts retreat rather than a large public estate.