Hazelrigg House is a historic Grade II listed sandstone house of 2½ storeys house in Northampton. It is not known exactly when the building was built, but an examination of the building's roof trusses suggests that the property dates from the early 16th century and it is one of the few houses to escape the Great Fire of Northampton in September 1675, when only a part of it was destroyed. The building's name derives from the Hazelrigg family who owned it for many years. It has also been known as Cromwell House and Hazelrigg Manor. The Cromwell reference derives from a local tradition that Oliver Cromwell spent the night at Hazelrigg House on his way to the Battle of Naseby in 1645. Unfortunately this local reference isn't supported by any documentary evidence.