In designing projects to be permitted under this subsection, sufficient area consisting of not less than two acres, meeting all constraints requirements, shall be provided to accommodate the use in keeping with its character and appropriate design standards.

Front, side and rear yard, and requirements shall be as specified in the R-1 zone. Minimum lot width shall be 300 feet.

The proposed use shall maintain a residential appearance and shall be substantially similar to the existing surrounding residential development.

Provision shall be made to provide a suitable buffer to provide a barrier to light and sound between the use sought to be established and abutting properties.

The following schedule shall control land coverage:

This minimum roof pitch shall be five vertical to 12 horizontal.

No building shall exceed 1 1/2 stories or 25 feet in height. The height shall be measured from the average ground level of the finished grade to the highest point on the roof line.

All development shall take place within 400 feet of the right-of-way line of the roadway providing access to the principal structure.

Adequate parking in accordance with the parking provision set forth in section 13-19 shall be provided, and shall specifically comply with nonresidential off-street parking and loading standards, all of which shall not be permitted to be located in front of the principal structure on the site.

The lot shall front on an arterial, major or collector street.

One freestanding sign shall be permitted provided it is set back at least 10 feet from the street right-of-way line and has no more than an area of four square feet, measured on both faces of the sign. The sign may be illuminated externally only and must conform to the provisions of section 13-17.