The plan originated as an efficient box to minimize cost for an old builder client of mine. The main volume of the house is 23'x52', because the maximum span for a 16" deep floor trusses is 22' . The 52' length allowed the plywood subfloor and wall framing to course out. Depending on the view opportunities and the parking requirements, the additive porch masses can be easily reconfigured to adapt the plan to a multitude of sites.
Note the exterior access to the space under the stairs. Without a basement, pouring a slab in this space at grade gained 30" of ceiling height to maximize the utility / storage. The water heaters are more commonly replaced with Rinnai tankless units, which are better suited to second home use. They don't develop sulfur smells in the tank from anode rods, and they aren't on when the house is unoccupied. They also don't run out of hot water when everyone takes a shower after a long day at the beach.
These plans are available for purchase through Houseplans.com.