2 feet by 10 feet bump out.
Roof bump out cost.
6 5 feet by 28 feet bump out for a bathroom on the ground poured foundation.
According to some anecdotal price reports a bump out may cost.
20 50 30 00 per square foot cost of framing an upper level addition a staircase to reach it and the roof structure.
However with a bump out this cost is sure to change as the size and construction needed will be much different.
Here s a trick for building a small addition without paying for any foundation work or maybe roof work either.
Consider the cost of permits electrical and plumbing if needed.
Hang the new space off the side of the building.
2 foot bump out in a kitchen length not provided on a second story cantilevered.
Reusing materials will produce a cost lower on this spectrum.
The average cost to build an additionis 36 238.