Building cost per foot varies considerably between residential and commercial structures. On average, residential structures cost $125 per square foot, as of 2015. Commercial buildings tend to be pricier, costing nearly $175 per square foot.
On average, commercial buildings cost almost 25 percent more than residential structures. Both commercial and residential construction costs change dramatically depending on region. With costs of $200 per foot for residential buildings and $245 per square foot for commercial structures, New York City is the most expensive place to build. Rural areas are usually the cheapest to build in, with construction in some remote residential areas costing below $30 per square foot. This disparity is largely due to increased labor costs and taxation.