Johnson's Residence, a modern residential project encompassing 1,711 square feet. interior design aspects of each room, including a kitchen, garage, dining room, family room, laundry room, living room, two standard bedrooms, a master bedroom, and two bathrooms (one of which is an en-suite in the master bedroom). Similar to the modeled square foot method used for commercial buildings To account for the quality of the proposed houses, cost data is divided into four classes: economy, custom, average, and luxury. The size of the house is taken into consideration by accounting for the number of proposed floors in addition to the square footage: one-story, one-and-a-half-story, two-story, two-and-a-half- story, three-story, bi-level, and tri-level. Other configurations considered include: detached house, semi-detached house, or