Fraser Bond are the leading lettings and property management agents for Roseberry Mansions - London N1C. Roseberry Mansions is an apartment building in King's Cross, London N1. The building offers independent living flats with support and personal care services to adults over 55 years old. The building contains 34 one-bedroom and six two-bedroom self-contained flats. Adjacent to Fenman House (south) and Saxon Court (north west).