The history of Balls Park begins with Sir John Harrison, a wealthy financier and customs official, who constructed the house between 1637 and 1640, possibly to the designs of Nicholas Stone, the king’s master-mason. The building is designed in the so-called Artisan Mannerist style similar to several other Hertfordshire houses of the same date but shows purer classical traits which suggest metropolitan influences. Several later phases of remodelling can be traced stylistically to changes initiated by Harrison’s son Richard Harrison, and his grandson Edward Harrison, who had served in the colonial government of the East India Company. In the later 18th century, the house passed to the family of the marquesses Townshend of Raynham in Norfolk, and so became a secondary home, though favoured by Lord John Townshend, who initiated further changes; possibly roofing over the courtyard as a saloon or atrium in the early 19th century. In the 1880s it was let to the Faudel-Phillips family, who purchased it outright in 1901 and made further changes. The estate offices and surviving stable block were built in 1902. In the early 1920s Sir Benjamin Faudel-Phillips commissioned the Scottish architect Sir Robert Lorimer to enlarge the house, by removing a series of service buildings and constructing a new west wing, mirroring the form of the mansion. The coach house was also remodelled at the same time. The estate was sold in 1946 and converted into a teacher training college, and served in an educational capacity for over 50 years, before closure in its final educational incarnation as the Hertford campus of the University of Hertfordshire in 2002. City & Country acquired Balls Park in 2001 from the University of Hertfordshire. In 2003, planning permission was granted for a comprehensive redevelopment of this highly sensitive site according to English Heritage Enabling Development Guidelines that allowed the minimum new build possible to ensure the repair of the listed buildings and park. The scheme included commercial use for the listed buildings, the demolition of unsightly 1960s college buildings and the development of 132 new homes that were designed to respect the setting and context of the listed buildings and the historic park. Several years later it was concluded by English Heritage that ‘the optimum viable use’ for this important Carolean country house was into residential apartments. Planning permission was granted in 2010 and The Mansion, Coach House and Stables have been restored and converted into 40 apartments by City & Country.