Subdivisions can range from a lot line adjustment between neighbors to a major development. Most subdivisions proceed before the Planning Board. The Planning Board maintains jurisdiction of subdivisions regardless of size and including those which involve "bulk" variances (i.e. setbacks, lot area, steep slopes, impervious area, etc.). However, if a subdivision contains any "use" variance (i.e. non-permitted use, floor area ratio, certain height variances) it would then be within the jurisdiction of the Board of Adjustment.

Site Plans most often involve non-residential uses. Typical applications involve additions to a non-residential building, change of use which requires additional parking on a lot with insufficient parking, parking lot expansion, etc.. Like subdivisions, most site plans, including those involving "bulk" variances are within the jurisdiction of the Planning Board. However, any "use" variance puts a site plan within the jurisdiction of the Board of Adjustment.