The porch was added in 1580 to the south front of the building. The west front was refenestrated, and at least 2 stair turrets added in the late 16th or early 17th century. The south front has been refenestrated and buildings to the north and east were demolished.
Combe Sydenham Hall was the home of the Sydenham family from the fourteen hundreds to the mid 18th century.
In 1585, Francis Drake married Elizabeth Sydenham—born circa 1562, the only child of Sir George Sydenham, who was the High Sheriff of Somerset. Drake and Elizabeth Sydenham were to be married earlier however he left on a long voyage and her father arranged for her to be married to a son of the Wyndham family of Orchard Wyndham. On the day of wedding as they were approaching the Church of St Mary at Stogumber there was a loud clap of thunder and a large meteorite crashed through the roof. This was seen as a bad omen and the wedding stopped. Drake had arrived back in Plymouth the same day, and they were later married at the Church of All Saints in Monksilver. The iron meteorite, which became known as "Drake's cannon ball", is 14 inches (36 cm) in diameter. It has been polished when rolled down hills and has remained at the house ever since. After Drake's death, Elizabeth eventually married Sir William Courtenay of Powderham.
Home of the British Downhill Series (BDS) with a National Race on April 13th and 14th 2013.
- "Combe Sydenham". Images of England. English Heritage. Retrieved 2009-02-06.
- Domesday Book: A Complete Translation. London: Penguin, 2003. ISBN 0-14-143994-7 p.262-6
- "Combe Sydenham". Mysterious Britain and Ireland. Retrieved 2009-04-12.
- Warren, Derrick (2005). Curious Somerset. Stroud: Sutton Publishing. pp. 90–91. ISBN 978-0-7509-4057-3.
- "The Occupants of the ancient office of High Sheriff of Somerset". Tudor Court. Retrieved 30 March 2011.
- "Captain Sir Francis DRAKE". tudorplace.com.ar. Retrieved 2008-05-28.
- "Combe Sydenham Country Park". Enjoy England. Retrieved 2009-04-12.
- "Combe Sydenham Hall". Historic Houses Association. Retrieved 2009-04-12.