The line's civil engineering works were designed by Thomas Bouch, including Keswick station.

The station was built on land purchased from Roger Eustace Le Fleming, about 0.3 miles (0.5 km) to the north of Keswick town centre.

[1] Following competitive bidding, the company accepted contractor George Bolton & Son's tender of £3,500 to build the station.

The waiting rooms opened onto the platform, most of which was protected by a glazed roof on top of a cantilevered valance, supported on rows of iron columns.

By 1893, the island platform was relocated to a more northerly position where a single-storey timber building with brick chimneys, a slate roof and cantilevered valances supported by iron columns was constructed.

A rail trail, owned by the Lake District National Park Authority, has been established since the line's closure.

[1] It starts at the station site, crosses several bridges along a gentle climbing route of roughly 4 miles (6.4 km) and ends at the mining museum, east of Threlkeld car park.