I thought Gilford had a 40 ft setback?
If you have septic taken care of and the setback is no problem then your next concern is the new impervious surface limit. The new standard sets up tiers for percent impervious allowed. You can avoid any issues with this standard by staying within the bounds of the existing impervious areas. In other words if you only wanted to add or expand the second story there would be no issue. In fact, you could potentially do it without a permit. If you are going to expand the impervious area of the house then it would be helpful to know approximately how much of the lot would then be impervious. Do you have an estimate on that? Keep in mind that gravel driveway are considered impervious unless specially designed and constructed to be otherwise.
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