Discover space-efficient house plans designed for narrow lots, perfect for urban living and tight spaces. These narrow lot house plans maximize both vertical space with multiple floors and single stories, clever storage solutions, and open-concept layouts. Most plans stay under 40 feet wide while offering modern amenities like elevators, sun-decks, and flexible living areas. These cost-effective homes help you build in prime locations where land is limited, without sacrificing comfort or functionality. Ideal for both city centers and developing suburban areas where lot sizes are becoming increasingly compact.