How to measure square footage

[Jeff Stein]

I was hoping to get a sense of what people do in the BP community. I have measured square feet of new buildings to purchase with a tape measure, but this seems very inefficient. I’m currently under contract on a 20,000 square-foot office building and want to make sure that the square footage on the leases and in the purchase documents are correct since commercial buildings base leases on price per square foot per year