In 1922 the interior was remodelled for the Demetriades family by the Manchester architect James Henry Sellers.

Its architectural style has been described as Arts and Crafts,[2] or eclectic Vernacular Revival.

The entrance front is asymmetrical, in two storeys, with an off-centre porch.

In the garden front are four timber-framed gables with a central loggia over which is a balcony.

[1] Manley Knoll is situated adjacent to another small country house called Manley Wood, which was built in 2001 on the former site of Sunnybank Farm.