concrete staircase up to the glass sliding door on the terrace of the newly built country mansion finished with black brick. 3d

architecture exterior building design house home style luxury entrance concrete modern outdoor residential stairs construction nobody window front contemporary facade background urban property city white stairway staircase outside door floor view dark light railing render step stair night glass rendering new decor structure estate doorway steps street porch wall evening sliding terrace newly built country mansion finished black brick brick rendering