In the 20th century cows and pigs were being reared on the site. Various parts of the mill have Grade II listed building status, including the southern range which consisted of the apprentice shops and stores, the main east block which was the printing works where notes were printed for the Bank of England – later converted to cabinet manufacturing and the chimney. De Montalt, an Italianate villa set in the grounds is also grade II listed. The mill and its associated buildings were converted to residential use during 2007, with the main mill building being converted into four apartments. Elements of the conversion featured in the Channel 4 television programme Grand Designs. Local flora A local woodland wild flower is the Bath Asparagus, also known as the Spiked Star of Bethlehem (Ornithogalum pyrenaicum). The flowers appear in June after the leaves die; the leaves resemble bluebell leaves but are a softer green and not as glossy. The flowering spike is up to one metre high. At the unopened stage the flowers used to be gathered in small quantities as a fresh vegetable by local people; it was also occasionally sold in local markets, but picking the flowers today is not encouraged as wild asparagus is becoming rare. According to research carried out by Avon Wildlife Trust the plant is found throughout Europe but has only a limited UK distribution. It is possible that the flower was first brought to the Bath area as seeds carried on the wheels and hooves of Roman vehicles and animals. Allium ursinum, also known as Ramsons or wild garlic, is abundant in the National Trust woodlands adjacent to Combe Down during the spring.2015. Grade I and II listed buildings on Combe Down There are 79 Grade I and Grade II listed buildings – a building officially designated as being of special architectural, historical, or cultural significance – on Combe Down, the earliest dating from 1729 and the latest from 1909. They are from three main phases of building activity. The first phase was c. 1700–1742. These are the buildings at Combe Grove, and the buildings commissioned by Ralph Allen at Prior Park and at De Montalt Place on Church Road. The second phase was c. 1800 – c. 1820. These are mainly buildings along Combe Road, Summer Lane, and Church Road at Isabella Place and from Claremont House to Hopecote Lodge, which were built