Have a narrow lot? Narrow lot house plans are creatively designed to maximize limited space while maintaining functionality. Even if you don't already have a lot, narrow lot plans are a great idea, since they use space wisely and may enable you to save money on land. If you're looking to build in an established neighborhood or a densely developed urban area, where lots are usually slimmer, a narrow lot plan maximizes space. Meet local building code limitations for size or footprint with a house that utilizes every square foot well.