Great thread and timely for me! Gregg W, our CO chapter leader and I were chatting tonight and he asked me if I'd seen this thread. I am planning on having a 17'x72' (16' sides) pole barn built to cover my truck and RV. This will get me a 16' wide interior floor. I am leaving the front open, sheeting the north side all the way to the bottom and the south side (close to the house and the door side) 6' down (leaving 10' open to the bottom). The back will be sheeted all the way down.
Due to being so close to my house and up against an AC unit and a large basement egress window well, I did not want to go putting in a stem wall - just too invasive for a sensitive area. So I am opting for a pole barn style. It will use a pier foundation with glue-lam posts going into the concrete piers.
Though I am in an unincorporated area of El Paso county (Colorado), the codes are the same as in an incorporated city in this county. So, engineered and sealed plans for the foundation and the building (another $1200).
Installed - I'm looking at $17k for the building, $1200 for engineering and $500 for permits. Plus whatever it will cost to do a zoning variance for side-yard setback (did I say Ugh! yet?). Oh - plus the flat work at about $6 per square foot. Gonna be some bucks!
Here' a rendering...