The post-Katrina prototype dwelling, the “Tarpon House,” like its fish namesake, is designed to breathe within the super-saturated moisture of New Orleans. The long sides of the dwelling, with one-room wide spaces, are vented by gill like adjustable louvers or jalousies, allowing for controlled natural ventilation. This building, designed to be thermally comfortable without mechanical air conditioning, sits high above a probable flood elevation. Its inverted roof, with generous overhangs, serves as a rain water collector channeling the run off to cisterns at each end. The construction technology is a post and flitch beam system with both porous and solid infill, and the roofing is standing seam metal with a fern green color.