Fraser Bond are the leading lettings and property management agents for Knowles House - London NW10. Knowles House is a £28m residential development in Harlesden, London NW10. Two new buildings will provide 92 homes for temporary accommodation and 57 homes to support the council's independent living scheme. The site Redevelopment at 51 Longstone Avenue (otherwise known as Knowles House), 53 Longstone Avenue (previously known as the College Green School Annexe and the Anansi Nursery) and the Westbrook Centre, together form a 0.48 hectare (1.19acre) site. History 51 Longstone Avenue (Knowles.