The units composing duplex floor plans can be one or more levels and range from one bedroom, one bath designs to three or more bedrooms and bathrooms. Inside, each unit is designed to look and feel like a single-family home offering many of the same features and comforts of traditional one-family homes. They might incorporate elements such as snack bars, fireplaces, walk-in closets, dens, and double bowl vanities. Some of these two-family dwellings feature two identical units while others offer two different units providing variety in style, layout and finished square footage. Villa house plans are an upscale alternative to multiple dwelling designs and are generally found in more sophisticated neighborhoods. Townhouse plans and other types of Multi-Family house plans share many similar features with Duplex house plans.