Principal Building Required for Accessory Building. There shall be no accessory building or structure on any lot zoned for residential purposes unless:

Each lot having a single-family dwelling thereon shall have a garage, accessible by an automobile from the street, of no less than 275 square feet nor greater than 500 square feet. There shall be no more than one garage for each principal building. The garage shall be one of the following:

Additional Accessory Buildings. In addition to the garage as set forth in paragraph b above, each single-family dwelling may have one additional accessory building of no more than 120 square feet and no higher than eight feet in wall height. The additional accessory building may be freestanding or attached to, but shall not access, either the garage or the principal building. If attached to the principal building the additional accessory building shall not be included as part of the principal building's lot coverage pursuant to subsection 17-5.3, Building Coverage. Such additional accessory building shall be limited in use to a changing room, a bathroom, a storage shed, a pool equipment shed, or a combination thereof. The accessory building shall not be heated, shall not have any cooking facilities, and shall not be used for any other activity of daily living except as set forth herein.

Location of Parking. An accessory building or a private parking area shall not be located in any required front yard space, except that nothing shall prohibit an owner of a home from counting his driveway as a parking space. If located on a corner lot, an accessory building, or a private parking area, shall be set back from the side street to comply with the setback line applying to the principal building for the side street.

Distance from Adjacent Building and Property Line When a Garage Is Freestanding and/or the Accessory Structure Is Not Attached to the Principal Structure. The minimum distance of any detached accessory structure, including a freestanding garage, from a side property line and an adjacent building on the same residential lot shall be five feet. The minimum distance of any detached accessory building, including a freestanding garage, from a rear property line shall be three feet. In case of a corner lot abutting two or more streets, no detached accessory buildings, including freestanding garages, shall be erected in violation of any side yard setback requirements. No accessory structures, including freestanding garages, shall violate the front yard setback requirements of any lot.

Additional Accessory Buildings Specified in Paragraph c. Above as Set Forth as Part of Principal Building. The accessory building pursuant to paragraph c above may be erected as part of a principal building, provided that all setback requirements of this chapter for the principal building including the attached accessory building, are complied with.

Accessory Buildings Not to Be Constructed Prior to Principal Building. Notwithstanding any other provisions of this chapter, no building permit shall be issued for the construction of an accessory building prior to the issuance of a building permit for the construction of the principal building to which the accessory building is accessory. If construction of the principal building does not precede or take place at the same time with the construction of the accessory building, the Construction Official shall have cause to revoke the building permit for the accessory building.

Second Dwelling Prohibited. There shall not be more than one single family residential building on a lot.

Building coverage. The maximum permitted building coverage on any residential lot shall be the equivalent of 20% of lot size, calculated as described in the definition of building coverage as that term is defined in Section 17-2.

Impervious Coverage. The maximum permitted impervious coverage on any residential lot shall be the equivalent of 35% of lot size, including all site features other than principal dwelling. Garage and accessory structure, driveways, walkways, patios, covered decks, decks installed over impervious materials, recreational facilities/courts, swimming pools with installed coping on less than four sides, sheds, cabanas, porches and all other areas covered by pavers or impervious material are included in the calculation of impervious coverage.

An uncovered deck installed over a pervious surface shall be excluded from the calculation of impervious coverage.

Dry Well(s) Requirement. Dry well(s) must be installed when a new principal dwelling is being constructed on a residential property. The dry well(s) must be designed to capture one gallon of roof run-off for every seven square feet of the lot area, with a minimum dry well to capture 1,100 gallons of roof runoff. The calculations for the dry well(s) must be prepared by the property owner's professional engineer and verified by the Borough Engineer prior to the granting of any zoning or building permits.

A residential lot that is constructing improvements to the principal dwelling that will exceed the maximum building coverage will require a drywell(s). The drywell(s) must be designed to capture 0.6 gallons of roof runoff for every square foot over the maximum building coverage allowed. The calculations for the dry well(s) must be prepared by the property owner's professional engineer and verified by the Borough Engineer prior to the granting of any zoning or building permits.