sentences:  Halton House is a large country house, built between 1881 and 1883 for Alfred de Rothschild, which has been used as an officers mess since 1919.At Harelane bridge, the footpath on the left bank stops, and the towpath continues on the right bank.On the opposite side to the towpath is Green Park, once the grounds of Aston Clinton house, where there is a wharf, and a swing bridge once gave access from the grounds to the towpath.