Check out 7 Tiny Tumbleweed Homes:
The Anderjack home has 2 columns flanking either end of its entrance that are supported with a nice-sized purlin, eave and window trim. The kit costs $12,999 and assembled, it costs $14,999. The price includes concrete footings, but this can be changed depending on how much you don’t love concrete!
The beautiful Beavan home costs the same as the Anderjack and also has columns on either side of the entrance. The exterior is 7 x 16 feet, not including the porch which adds an addition 2 feet. The interior can be managed however you like, but Tumbleweed recommends using their mini homes as a backyard bedroom, office, yoga retreat, or office studio.
The Gifford home has massive purlins that support a front gable and porch. The kit costs $11,999 and the base and assembly pushes the price to $13,999. Given that it’s under 120 square feet, it’s unlikely your municipality will require you to purchase a permit to install it, but it’s a good idea to check first!