However with a bump out this cost is sure to change as the size and construction needed will be much different.
Roof bump out cost.
20 50 30 00 per square foot cost of framing an upper level addition a staircase to reach it and the roof structure.
According to some anecdotal price reports a bump out may cost.
4 feet by 10 feet bump out.
Consider the cost of permits electrical and plumbing if needed.
6 5 feet by 28 feet bump out for a bathroom on the ground poured foundation.
Here s a trick for building a small addition without paying for any foundation work or maybe roof work either.
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.
Hang the new space off the side of the building.
The cost is higher on the spectrum for a third story than a second floor and for additions with dormers very steep pitches and multiple peaks and valleys.