Interior of one of the apartments:

Closeup of the central section of the apartment block from the first image:

Other designs

Britishhas published an article with architects and scientists prototyping several possible types of homes for would-be Martian colonists. All the designs are meant "to protect interplanetary homeowners from hazardous cosmic rays, space radiation and Mars' severe dust storms, as well as insulate them from the cold."Here are images for the 2nd design -covered with Martian regolith.Open link in new tab to view image in full resolution.