There are various synonyms one can use instead of "Lord's houses," depending on the context. For instance, "manor" refers to a large landed estate or a country house with outbuildings and land, while "mansion" implies a large impressive house with extensive grounds. "Palace," on the other hand, suggests a grandeur building, often associated with royalty, while a "chateau" is a French term used for a castle or palace, especially in the countryside. Finally, "estate" refers to a large area of land owned by an individual, including any buildings on it. So, depending on the context, there are plenty of synonyms for "Lord's houses".