4-Bedroom Duplex House Plans: Space for Larger Families. When you need space for a big family or frequent guests, these 4-bedroom duplex plans provide the extra room you’re looking for without giving up that sense of privacy.

These floor plans typically feature two distinct residences with separate entrances, kitchens, and living areas, sharing a common wall. Duplex or multi-family house plans offer efficient use of space and provide housing options for extended families or those looking for rental income.

The best duplex plans, blueprints & designs. Find small, modern w/garage, 1-2 story, low cost, 3 bedroom & more house plans! Call 1-800-913-2350 for expert help.

This duplex house plan has two distinctly different 4-bed units with finished lower levels. One unit has one level above grade and the other has two floors above grade. Unit A has gives you 3,417 square feet of heated living (1,754 sq. ft. on the main floor and 1,663 sq. ft. on the lower level) and a 2-car 460 sq. ft. garage.

Explore diverse duplex house plans, from small and affordable to spacious and luxurious. Browse floor plans with various bedroom configurations, garage options and architectural styles.