Permitted principal uses. No building, structure or premises shall be used, and no building or structure shall be erected or structurally altered, except for the following uses:

Permitted accessory uses and buildings. Permitted accessory uses and buildings shall be as follows:

Conditional uses. Conditional uses shall be as follows: none.

Height, area and yard requirements. Height, area and yard requirements shall be as specified in the schedule of regulations (§ 250-6), except as hereinafter provided: Professional office use and combination professional office and residential shall not exceed a floor area ratio (FAR) of 35%.

Off-street parking requirements. Off-street parking requirements shall be as specified in § 250-20.

Signs. Signs are subject to the sign regulations of § 250-21.