4 feet by 10 feet bump out.
Roof bump out cost.
The average cost to build an additionis 36 238.
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.
20 50 30 00 per square foot cost of framing an upper level addition a staircase to reach it and the roof structure.
2 feet by 10 feet bump out.
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.
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.
It sounds farfetched but a bump out addition is a clever secure and economical way to add on says curt schultz a realtor architect builder in pasadena calif.
However with a bump out this cost is sure to change as the size and construction needed will be much different.