Billingsgate Roman House and Baths is an archaeological site in Londinium (Roman London). The best preserved parts of the house are a bath with hypocausts. The ruins were discovered in 1848 while the Coal Exchange was built on the site. The remains were preserved and were visible in the cellar of the building. In 1967 to 1970, the Coal Exchange was replaced by another building and the Lower Thames Street was enlarged. Further excavations were made at the site and the remains were incorporated into the cellar of the new building, but were not open to the public.