Crouch, the parliamentary under secretary of state for sport, tourism and heritage, will speak at the event on 17 November at the Queen Elizabeth II Conference Centre.
The heritage conservation day, which has been held annually for over 30 years, has evolved from, and is held in parallel with, the Annual General Meeting of the HHA.
There will be an address by HHA President Richard Compton and the HHA/Smiths Gore Lecture will be given by Dr. Bettany Hughes, the award-winning historian, author and broadcaster. All visitors are invited to attend the lecture free of charge, subject to seating availability.
The Historic Buildings, Parks and Gardens Exhibition will feature 75 stands displaying complementary and relevant products and services.
Entrance to the event, the exhibition and the keynote addresses is free of charge.