Welcome to Witham Barn Home Page | Site Map | Guided Tour | Directions | Tariff | Mill Farm | Local Attractions | Links Page | Contact Us "Quality self catering accommodation for up to 6 people" Enter Witham Barn Witham Barn is located in the rolling countryside south of Grantham in Lincolnshire with easy access to the A1 and surrounding attractions. Witham Barn takes it's name from the River Witham that meanders through the farmland. E-mail Witham Barn Witham Barn, Mill Farm, Great Ponton, Grantham, Lincolnshire, NG33 5DP. Telephone 01476 530502 For the comfort of all our guests, Witham Barn is a non smoking and environment and we cannot accept pets. Visitor Number 6706