Site plan approval shall be required for all uses in all districts except that no site plan approval shall be required for single-family and two-family homes, unless attached at the lot line to a building on an adjacent lot.

In cases where the building permit applied for covers renovations only without increasing the floor area, affecting the number of dwelling units, or affecting the off-street parking requirements, the construction official may waive the full requirements for site plan approval. This exemption shall not apply to a conditional use application.