Tregrehan Mills is a small, rural settlement on the edge of the Tregrehan estate near St Blazey in Cornwall, England. It grew up around the estate’s mill buildings and sits in a wooded valley of narrow lanes and streams typical of south Cornwall, offering a quieter counterpoint to the busier market towns nearby.
The wider estate, including Tregrehan House and its notable gardens, gives the area a strong historic and cultural identity; the locality has long combined estate agriculture with small local businesses and tourism. Proximity to the china‑clay country around St Austell has influenced the economy and landscape over the last two centuries, while today the place is valued for its historic landscape, garden events and easy access to coastal and countryside walking routes.