Bricks of stone and mud blocks. The Romans I believe invented or discovered mortar which they used for most all of their construction.
What Did The Ancient Romans Use To Build Their Houses?
Wood and bark dried mud and dirt and thats it
The Romans invented concrete and thats how they made thier houses stronger than others
Wood and clay
They used wood for the walls, flooring and for the door. Sand was also important they would use it for the bottom level for their houses. They would also use stone for their sidewalks.