503.2.4.2 Group R-3 occupancies set back more than 100-150 feet.
FC § 503.2.4.2
The fire apparatus access road to a Group R-3 building with any main front entrance located more than 100 feet (30 480 mm) but not more than 150 feet (45 720 mm) from the street line (as measured along the route of the fire apparatus access road) shall be designed and constructed with an unobstructed width of not less than 20 feet (6096 mm) in accordance with FC 503.2.2 where: 1. The fire apparatus access road is designed and is used exclusively to provide access only to a single Group R-3 building, and to no other buildings; and 2. The height of the Group R-3 building does not exceed 35 feet (10 668 mm) above the grade plane (with the terms "building height" and "grade plane" having the meanings set forth in Section 502.1 of the Building Code); and 3. The fire apparatus access road provides access to the frontage space of each occupancy, except as otherwise provided in FC 504.1.2; and 4. The dwelling units are equipped with interconnected smoke alarms, in accordance with Section 907.2.10* of the Building Code; and * Editor's note: correct reference should be Section 907.2.11 of the Building Code.
5.The dwelling units are protected throughout by a sprinkler system; and 6. At least two off-street parking spaces for a one-family dwelling, and at least three such spaces for a two-family dwelling are provided on the premises separate from the fire apparatus access road; and 7. Parking is prohibited on the fire apparatus access road, and a "No Parking" sign conforming to the requirements of FC 503.2.7.2 is conspicuously posted at the entrance to the access road.
