Optimal functional design with Gutters and 5 inch overhang for 50 year lifespan

Tiny House designed by Engineer/Custom home builder with all custom features
Features include:
Custom made low profile frame with 1/4” and 3/16 inch wall Thickness steel box tubing
Highest SEER rated Panasonic mini split for heating and cooling.
Spray foam insulation.
Hardy siding on skirt for waterproofing.
Continuous rain gutters to protect siding that are removable for transportation.
Snaplock metal roofing with folded seems on lower edge and stainless steel fasteners
Zline Convection oven/microwave/Exhaust fan
Two burner gas cooktop
30 inch Frigidaire stainless steel fridge/freezer
Corian counter tops.
Stainless steel and brass Undermount sinks.
Grohe and Kohler faucets
PEX plumbing with all brass fittings.
Hook up for washer/dryer/dishwasher as to be decided by new owner
BoonJon Composting toilet separating number one and two. Also plumbed for regular toilet
Propane on-demand hot water heater
Milgard lifetime warranty windows.
Schlage keyless Electronic door lock
Lifeproof, waterproof flooring
Leather Costco, euro lounger.
Retractable exterior steel staircase
Multicolor rope light with crown molding above cabinets.
Poplar and maple plywood cabinets with Poplar and Maple ply doors
Blum euro style soft, close hinges with Accuride ball bearing drawer slides.
30 inch shower with tempered glass obscured shower door.
6000 Watt Honda generator with 50 foot generator cord
Offset ship staircase from poplar wood made for minimal footprint to access loft
Downstairs closet under staircase
6 inch Mattress Firm full size mattress in loft
Formica double sided sliding organizer on both sides of loft
Additional loft storage behind sleeping area with rails and plastic storage bins