In The Building Permits New York Requires, building codes expert witness Christopher E. Chwedyk, AIA, CSI, writes:
According to New York City building codes, unless you’re only making a minor alteration or repair to your property, you’ll need to obtain a building permit before you commence work. The type of building permits New York requires for your project depends on the nature of the project itself and what type of construction will be happening.
There are four main types of building permits New York property owners may have to seek: