The only permit that is required is a land use permit. The county just wants to make sure that the location is correct for setback requirements and it's not too close to the house or garage. The building at or under 400 square feet requires no inspections. Electrical or plumbing will require an inspection. The county changed this requirement to 200 sq ft back in October so I got in just under the wire.
Wall sheathing installed vertical on an 8 foot wall has all edges nailed and I hate blocking a wall just to go horizontal. Contrary to what the experts have to say, there is no difference in shear strength when installed either direction.
That's a good deal with the inspection process, makes it much easier for a homeowner and taxpayer to improve, and enjoy their property!
But, as for the orientation of the sheathing, running it horizontally does increase the strength of the structure, because it ties several more studs together in an 8' span, as opposed to a 4' span. Compound that with staggering the upper and lower layer, and it's advantages are compounded. But you're entitled to your opinion, and the garage looks great so far. Not too many things make a grown man smile like a kid, and a new shop will certainly do that. Gotta' love the unincorporated areas!
You mentioned that you just got in before they changed the qualification of the square footage - what did they decrease it to, and any idea why? I ask because I'm soon relocating to another state, and I'm specifically looking to an unincorporated area (similar to the area I currently live), so I'm not burdened with so many restrictive limits on my future garage.
Good luck on getting it done, without delays. I hope the weather holds out for you. We enjoy the updates and pics, so keep them coming!