Throughout the 18th century the manor continued to pass through the Blagrave family, including John Blagrave MP. In 1778, Frances Blagrave married John Blagrave of Watchfield (Ditchfield and Page suggest that the couple were not related before marriage). In 1813, Daniel and Samuel Lysons wrote that the manor and mansion house were unoccupied but remained the property of the Blagrave family, who at that point resided at nearby Calcot Park. The same year, Calvespit House (near Calvespit Farm to the west of Southcote Manor) was renamed Southcott Lodge and incorporated into the estate. Between 1828 and 1850 the house was let to Charles and Frances Lutyens, whose son Charles was born at the house and who later fathered the architect Sir Edwin Lutyens.