Assuming there is enough available FAR. Does anyone have a ballpark figure, even experiences, adding another floor to the top of a house?

It may not need to be a whole floor but a large 17×20 room, with bathroom.

tia


Comments

  1. I have a 3 story frame house, and am adding on a 3 floor extension on the back. Frame houses tend to have small foot prints for the standard 100 ft. lot, my architect was able to draw up a plan in which I am effectively doubling the size while more than adhering to FAR.
    Consider extending backwards and not upwards.

  2. There are also fire code rules in addition to FAR rules about how many stories a wood frame can be, which I think is 2 stories for the combustion rating.