In all use districts no dwelling shall hereafter be
erected or altered for one-family dwelling use unless provision shall
be made therein for not less than 1,200 square feet as the minimum
floor area for a single-family dwelling, exclusive of attached garages,
carports, open porches and open breezeways. The computation of floor
area shall be as follows:
(1) One-story residence, all rooms on one level: a minimum
of 1,200 square feet.
(2) One-story residence with expansion attic. A maximum
of 136 square feet of the floor area of the secondary story may be
used and applied to the floor area requirements of the dwelling unit.
To qualify as floor area, the second floor shall have:
(a)
Rough flooring installed.
(b)
A minimum ceiling height of seven feet.
(c)
Walls or knee walls of not less than four feet
in height between which the floor area shall be computed.
(d)
Access from the floor below by a permanent built-in
stairway.
(e)
At least one window in each gable end.
(3) Two-story residence where both floors have a minimum
ceiling height of eight feet: a maximum of 500 square feet of the
floor area of the second story may be used and applied to the floor
area requirements of the dwelling unit.
(4) Raised ranch where both floors have a minimum ceiling
height of eight feet: a maximum of 200 square feet of the floor area
of the lower level may be used and applied to the floor area requirements
of the dwelling unit. To qualify as floor area, the lower level shall:
(a)
Have more than half of its height, measured
from floor to ceiling, above the average established curb level or
finished grade of the ground adjoining the building.
(b)
Be completely enclosed by ceilings and sidewalls
which have been properly finished with approved construction materials.
(c)
Have a floor finished with approved construction
materials, excluding, however, paint.
(5) Split-level where the two height levels are completely above finished grade, with minimum ceilings of eight feet: a maximum of 250 square feet of the floor area of the lowest level may be used and applied to the floor area requirements of the dwelling unit. To qualify as floor area, the lowest level shall meet the same standards as those applied to raised ranch homes, as noted in Subsection
A(4) above.