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Detached Garage Requirement

1321.10.1 — Accessory Buildings in Residential Districts


Nothing in this Zoning Ordinance shall be deemed to prohibit and incidental uses that shall adhere to the following standards:

  1. Accessory buildings located other than in a rear yard shall comply in all respects with the requirements of this Zoning Ordinance applicable to main buildings. 
  2. No accessory building shall be located nearer than two feet (2’) to any side or rear lot line. (See Section R302). 
  3. An accessory building that is attached to a main building shall be deemed to be a part thereof and shall comply in all respects with the requirements of this Zoning Ordinance applicable thereto with the exception of those accessory buildings that are attached to a main building by a breezeway or covered passageway with open or latticed sides. Such accessory structure shall be located no nearer than six feet (6’) to the primary building. (See Section R302). 
  4. An accessory building, detached or attached to a main building in no other manner than by breezeway or covered passageway with open or latticed side, shall not exceed a maximum height of twelve feet (12’) for a flat roof or sixteen feet (16’) for a roof of any other type and shall occupy no more than thirty percent (30%) of the rear yard. 
  5. No accessory building on a corner lot, with vehicular access from the side street, shall be located nearer to the side street line thereof than a distance which shall be not less than the required side yard setback. 
  6. When the rear yard on a corner lot adjoins the front yard of a lot to the rear, no accessory building on such lot shall be located nearer to the street line of the street on which the lot to the rear faces than a distance equal to the depth of front yard required on such lot to the rear, provided that this regulation shall not be applied so as to require that the line of such accessory building that faces toward such street and is nearest thereto shall be nearer to the lot line opposite such street than a distance of twenty-five feet (25’). 
  7. No door of any accessory building or improvement, except a fence which door opens into an alley, shall be erected, constructed or established nearer to the center of such alley than a distance of fifteen feet (15’). 
  8. Accessory building shall not exceed 1,000 square feet in area and no one horizontal dimension may exceed thirty six feet (36’) in length.

Table R302.1 (1)

Exterior Walls

Exterior Wall Element

Minimum Fire-Resistance Rating

Minimum Fire Separation Distance

Walls

Fire-resistance rated

1-hour —tested in accordance with ASTM E119, UL 263 or Section 703.3 of the Building Code of New York State with exposure from both sides

0 feet

Not fire-resistance rated

0 hours

≥ 5 feet

Projections

Not allowed

NA

< 2 feet

Fire-resistance rated

1-hour on the underside, or heavy timber, or fire-retardant-treated wood

≥ 2 feet to < 5 feet

Not fire-resistance rated

0 hours

≥ 5 feet

Openings in walls

Not allowed

NA

< 3 feet

25% maximum of wall area

0 hours

3 feet

Unlimited

0 hours

5 feet

Penetrations

All

Comply with Section R302.4

< 3 feet

None required

3 feet

For SI: 1 foot = 304.8 mm.
NA = Not applicable.

  1. The fire-resistance rating shall be permitted to be reduced to 0 hours on the underside of the eave overhang if fireblocking is provided from the wall top plate to the underside of the roof sheathing.
  2. The fire-resistance rating shall be permitted to be reduced to 0 hours on the underside of the rake overhang where gable vent openings are not installed.

Table R302.1(2)

Exterior Walls—Dwellings with Fire Sprinklers

Exterior Wall Element

Minimum Fire-Resistance Rating

Minimum Fire Separation Distance

Walls

Fire-resistance rated

1-hour—tested in accordance with ASTM E119, UL 263 or Section 703.3 of the Building Code of New York State with exposure from the outside

0 feet

Not fire-resistance rated

0 hours

3 feet¹

Projections

Not allowed

NA

< 2 feet

Fire-resistance rated

1-hour on the underside, or heavy timber, or fire-retardant-treated wood²,³

2 feet¹

Not fire-resistance rated

0 hours

3 feet

Openings in walls

Not allowed

NA

< 3 feet

Unlimited

0 hours

3 feet¹

Penetrations

All

Comply with Section R302.4

< 3 feet

None required

3 feet¹

For SI: 1 foot = 304.8 mm.
NA = Not Applicable.

  1. For residential subdivisions where all dwellings are equipped throughout with an automatic sprinkler system installed in accordance with Section P2904, the fire separation distance for exterior walls not fire-resistance rates and for fire-resistance-rated projections shall be permitted to be reduced to 0 feet, and unlimited unprotected openings and penetrations shall be permitted, where the adjoining lot provides an open setback yard that is 6 feet or more in width on the opposite side of the property line.
  2. The fire-resistance rating shall be permitted to be reduced to 0 hours on the underside of the eave overhang if fireblocking is provided from the wall top plate to the underside of the roof sheathing.
  3. The fire-resistance rating shall be permitted to be reduced to 0 hours on the underside of the rake overhang where gable vent openings are not installed.

BXUV.U311

Fire Resistance Ratings- ANSI / UL 263

Design No. U311

May 23, 2007

Bearing Wall Rating — 1 HR.

Finish Rating — 23 Min.

Load Restricted for Canadian Applications — See Guide BXUV7

  1. Wood Studs - Nom 2 by 4 in. spaced 16 or 24, OC. Effectively cross braced.
  2. Resilient Channel - 25 MSG galv steel. Resilient channels spaced vertically 24 in. OC, flange portion screw attached to one side of studs with 1-1/4 in. long diamond shaped point, double leaf Phillips head steel screws.
  3. Steel Framing Members (Optional, Not Shown)* — As an alternate to Item 2, furring channels and resilient sound isolation clip as described below:
  4. Furring Channels — Formed of No. 25 MSV galv steel. 2-3/8 in. wide 7/8 in deep, spaced 24 in. OC perpendicular to studs. Channels secured to studs as described in Item b. Ends of adjoining channels are overlapped 6 in. and tied together with double strand of No. 18 SWG galv steel wire near each end of overlap. As an alternate, ends of adjoining channels may be overlapped 6 in. and secured together with two self-tapping #6 framing screws, min. 7/16 in. long at the midpoint of the overlap, with one screw on each flange of the channel.
  5. Steel Framing Members — Resilient sound isolation clip used to attach furring channels (Item a) to studs (Item 1). Clips spaced 48 In. OC. and secured to studs with NO. 8 x 2-1/2 in. coarse drywall screw through the center grommet. Furring channels are friction fitted into clips.

PAC INTERNATIONAL INC — Type RSIC-1.

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