Brick and mortar (also bricks and mortar or B&M) in its simplest usage describes the physical presence of a building(s) or other structure. The term brick-and-mortar business is often used to refer to a company that possesses buildings, production facilities, or store for operations.

Brick And Mortar Apocalypse - Up To One Million Jobs At Risk
Modulation of Spacing and Magnetic Properties of Iron Oxide Nanoparticles through Polymer-Mediated “Bricks and Mortar” Self-assembly
Tetrathiafulvalenes, oligoacenenes, and their buckminsterfullerene derivatives: the brick and mortar of organic electronics.
Bricks and mortar of the epidermal barrier
Nemes Z & Steinert PM. Bricks and mortar of the epidermal barrier. Exp Mol Med31: 5-19
Internet versus bricks-and-mortar retailers: An investigation into intangibility and its consequences.
Experimental & Molecular Medicine - Abstract of article: Bricks and mortar of the epidermal barrier
The converging business models of Internet and bricks-and-mortar retailers
WEB-BASED TARGETED ADVERTISING IN A BRICK-AND-MORTAR RETAIL ESTABLISHMENT USING ONLINE CUSTOMER INFORMATION
Mental health and the built environment: More than bricks and mortar?