imagine ultra realistic architectural interior rendering of a two story accessory dwelling unit adu interior stair void and upper landing view minimalist tropical modern architecture monolithic plaster or concrete walls with expressed thickness sculptural stair carved from a solid mass simple dark metal railing with vertical balusters enclosed stairwell emphasizing verticality large recessed roof skylight bringing soft indirect daylight deep into the space thick roof slab with visible depth around skylight opening narrow horizontal slot window providing secondary light inward focused and quiet
