I finished my MCRP in May and took a job in economic development, but I'm moving on to a development review position with another city. I'm trying to remember some of what I learned in my lup/luc classes, but I'm stumped on this one. I figure it's pretty simple, and I'm simply overlooking something.
The city I'm going to work for requires that no more than 80 percent of a development site may be impervious surface. The formula the city gives for calculating impervious surface is this:
(GFA + LCA) / Site Area = Percent Impervious Surface
where GFA is gross floor area and LCA is lot coverage area.
Doesn't gross floor area include square footage on each floor of a multi-story building? If so, then the building's coverage could be counted repeatedly. Wouldn't I really want to look at the building footprint to determine the percent impervious surface?