Nant-y-Coy Mill officially opened its doors this month after an extensive redevelopment project.

The original 4.5 ton water wheel at the unique grade two listed mill in Treffgarne has been restored to full turning order.

The extensive refurbishment has also followed a sustainable ethos, with the introduction of an energy-efficient boiler run on wood pellets and solar panels.

Managing director of the mill, Margaret Merritt, was keen to ensure the redevelopment was sympathetic to its history and the result is an efficient and environmentally friendly building which has already achieved Wales' Green Dragon environmental standard.

Grant aid from the Wood Energy Business Scheme (WEBS), a Forestry Commission Wales initiative, was instrumental in the development plan for an environmentally friendly attraction.

Project manager Mike Pitcher said: "Wood fuel is highly suitable for this type of operation. A wood fuel system can be easily installed in a listed building and is highly cost-effective compared with other fuel sources."

The mill is surrounded by more than 35 acres of woodland and has an all-weather appeal for the visitors, with a nature walk which includes an outdoor sculpture gallery and follows the Nant y Coy brook through a wooded valley.

Preseli Pembrokeshire AM Tamsin Dunwoody, deputy minister for environment, planning and countryside, opened the mill.

She said: "Margaret Merritt's vision for the mill embraces a high quality attraction for both visitors and local people that will contribute to the economy of Pembrokeshire.

"Nant y Coy satisfies the consumer trend for niche experiences - combining the intrinsic interest of a historic building in a beautiful setting, with unique arts-related interest for visitors."