(a) Block Design.
(1) No block shall be longer than 1,200 feet nor less than 500 feet, except in unusual circumstances. Where a subdivision adjoins a major highway, the greater dimension of the block shall front along such major highway to minimize the number of points of ingress or egress.
(2) Where blocks are over 750 feet in length, a walkway easement not less than ten feet in width may be required if necessary to provide proper access through the block.
(3) Blocks for multi-family, business or industrial subdivisions shall be designed to accommodate the building sites and provide the yards, internal service drives, required off-street parking and other such required facilities for unit development rather than typical lot and street pattern.
(b) Lots.
(1) The lot arrangement and design shall be such that all lots will provide satisfactory and desirable building sites, properly related to topography and the character of the surrounding development.
(2) All side lines of lots shall be at approximate right angles to straight street lines and radial to curved street lines except where a variation to this rule will provide a better street and lot layout. Lots with double frontage shall be avoided.
(3) No lot shall have less area or width than is required by the zoning regulations applicable to the area in which it is located.
(4) In case of unusual soil conditions which may impair the health and safety of the neighborhood in which a subdivision may be located, upon recommendation of the Board of Health or upon the recommendation of the Municipal Engineer, the Planning Commission may require larger lot widths and lot areas than might otherwise be necessary.
(5) No corner lot shall have a width at the building line of less than seventy- five feet. Either of the two sides of a corner lot fronting on a street may be designated the front of a lot provided the rear yard shall always be opposite the frontage so designated.
(6) All corner lots, be they at the intersection of the rights of way of two streets, shall have a curve with a minimum radius of twenty-five feet joining the two sidelines of such rights of way.