The 256 square foot model is named the "Puritan" and I have developed 4 exterior elevations for it (A, B, C and D) and the floor plans for each is the same except for front porch variations.
Designing these small homes was different than any of the previous larger homes I have designed. I had to rethink what it means to "live" in a home and what is required at a bare minimal. Quite a bit of research, thinking and planning was involved, lot's of trial and error. My goal was to come up with minimal costs while providing the essentials for a comfortable lifestyle. In other words, homes that fit you rather than you fitting the home. All of these homes are easily expanded or adapted and they use standard building materials and construction techniques. All of the building materials can be acquired at a home center like Lowes.
This is a brochure drawing I created for the Puritan "A" model:
It is 256 square feet and measures 16'-0" x 16'-0" with 8'-0" high walls. It is built on a concrete slab and has 2x4 frame walls with R13 insulation. The roof is constructed with economical trusses with R30 insulation.
The Puritan has a compact bathroom with a shower and toilet, a small window and a storage cabinet mounted on the wall. There is a kitchen area with a single bowl sink, an under counter refrigerator and an under counter washer-dryer. Cooking will be done on an electric hotplate, a microwave oven and a toaster oven. There is plenty of cabinet storage.
There is a split unit, wall mounted air conditioner and a wall mounted tankless water heater.
Along the left wall is 12' long closet and there is an attic access with pull down stairs for addtional storage.
The Puritan lends itself easily to off-grid situations or where people are trying to save expense and maintenance and is readily adaptable for solar and/or wind power.
The Puritan model packs a lot of punch into a minimal footprint and it is unlikely that you will find a more comprehensive house plan anywhere.
Below are views of the interior.
Again, this plan may be purchased at Brown County Shops.