one story addition, it can be no higher than 10 feet which is the same size permitted for a deck orfence that can be approved over the counter and also is below the site line. and that would amount to about 300 gross square feet of additional floor area in the structure for a typical 25 foot lot. it also allows for a two floor addition, provided that the existing structure is at least two floors. that addition is limited so that it has to have a 5 foot set back on either side of the addition, and it can't be any higher than the floor of the third floor, that the highest point of the second floor, in other words. in no circumstances can these additions go into the last 15 feet of the lot or the last 25% of lot area, whichever is greater. i should also mention that these requirements are completely in line with the residential design guidelines. this type of work would be permitted if we saw the project, when we do, and we look at the residential design guidelines, we say okay that fits, and these are routinely approved. very small number of these end up coming to the commission. however,