Thanks for all of your responses. Personally, I have had both in homes I own, and prefer not to have that water & sewer bill! Thanks for the maps Ken, my colleague also got maps from the county, no water here either. I have heard that cedar trees are indicative of soil that does not perc well from a local broker who deals in land. Apparently, most of the still undeveloped land in this county requires alternative septic systems. I spoke to a county appraiser, and she said that they are not seeing much price difference now for traditional versus alternative systems in terms of the land price. An alternative system here is about $30,000. Things are expensive here. As for the number of bedrooms, the permits are issued with a bedroom count, I am not aware of problems after a permit is issued.
We appraise primarily land, and yes, a 4-6 or even 3 acre lot can be almost the same price as a 10 acre lot. As we are doing work for eminent domain, we end up breaking things down to a square foot price, which would seem strange when doing acreage, but its how compensation is calculated. So, if say a 1 acre lot seems worth about $2.50, 2 acres could be $1.75, and so on down.