The construction of one- or two-family dwellings and their customary accessory structures on individual lots.

Exterior alterations or additions to existing commercial structures which are 25% of the gross building area or 1,000 square feet, whichever is less. Such exemption will be limited to a cumulative maximum building area of 1,000 square feet. All subsequent additions must obtain site plan approval.

Parking area expansions for nonresidential uses not exceeding 1,500 square feet.