People were queuing at the door to get their antiques valued at a roadshow event which was held in Bourne.
More than 100 people brought their items to Larkfleet and Keystone’s development The Croft for valuation by auctioneer David Palmer, from Batemans Auctioneers in Stamford.
Mr Palmer is a regular face on TV shows such as Flog It! and Antiques Roadshow.
Spokesman for Larkfleet Hannah Thomas said: “It was a great success, there were many more people there than we expected.
“As a result a lot of items have been sent to auction.”
Mr Palmer also cut a ribbon to signal the manor house officially open.
Karl Hick, managing director of Larkfleet Homes, and Bob Walder, chief executive officer of Keystone’s parent company Longhurst Group, each gave a speech.
Mr Hick said: “This opening ceremony marks the culmination of months of hard work by Keystone Developments and Larkfleet Homes and I am delighted the manor house is now complete and open for residents to enjoy.”