bricks and mortar
From Longman Dictionary of Contemporary Englishbricks and mortarbricks and mortarhouses – used especially when talking about them as an investment → brickFrom Longman Business Dictionarybricks and mortarbricks and mor‧tar /ˌbrɪks ən ˈmɔːtə-ˈmɔːrtər/ noun [uncountable] informalPROPERTY buildings such as houses, offices, and factoriesThe hospital would cost about £37 million in bricks and mortar and another £10 million for equipment.