Heritage Open Day: A tour of a Grade II* Listed building, General Lambert's House. Hear some of the stories associated with the Dickson, Archer and Thorp practice, explore the building in its current condition, and view the plans to bring it back to life. John Lambert was a prominent solicitor and a generous philanthropist. He bought two small houses in 1811, then extended, modernised and refaced them to create a stylish home for his large family and thriving legal practice. On his death the house passed to his son, then in 1861 it was sold to William Dickson, a founding partner of the Law firm which became Dickson, Archer & Thorp. They occupied the building until the practice closed in 2003.