"Winslow Hall was built in 1700 by Secretary Lowndes", claims Kip and Knyff's Britannia Illustrata (1708), with no mention of an architect.

Winslow Hall was probably designed by Sir Christopher Wren, according to Howard Colvin,[4] who found the case not proved.

George Lipscomb was less cautious: he notes the "commodious plain brick edifice with a flight of several steps to the door over which is the date of its erection 1700 and the name of William Lowndes" and adds confidently, "for whom it was designed by Inigo Jones".

[6] Sir Christopher Wren is thoroughly plausible – in a ledger book discovered in the early twentieth century detailing work on the house, scattered among the payments made to stonemasons and bricklayers, and for the carpentry to Matthew Banckes, are alterations in payments to craftsmen, authorised by 'St.

Banckes often acted as surveyor at works by Wren, including six of the City churches and at Trinity College Library, Cambridge.

[8] As happened the length and breadth of England it is likely that similar projects were copied by a local draughtsman, and in the case of Winslow Hall, Wren kept an eye on the work and the books as a favour to his friend.

The three bayed central section is crowned on both principal facades by a pediment containing a round window.

Flanking the house were two wings, on the west a large kitchen and service range and on the east connected by a covered way a brew-house and laundry.

The bill for cutting "Mr Lowndes name and the date of the year over the door" ('1700', and visible from the road today) was £5.

Thus it is even more remarkable that it has survived largely unaltered, escaped conversion to institutional or office use, and remains today (2014) an inhabited house.

Tomkins and his wife restored the house and improved the 5 acres (20,000 m2) of garden to the rear (south) by planting specimen trees and shrubs.

[15] In all the house was offered for sale consisting of six bedroom suites, two self contained flats and surrounded by 22 acres (89,000 m2) of land.

[16] In October 2007 there was speculation in the British press that the house was to be purchased by the former prime minister Tony Blair.