DC Building Requirements

International Building Code (ICC)

Square: 3103
Lot: 0800

Zone: MU4*

ICC Classification

Group A-2 Restaurant
Group A-3 Art Gallery

 

FAR (Floor to Area Ratio)

2.0 FAR allowed for "nonresidential uses" (1st floor and 2nd Floor only - plus rooftop and basement).
2.5 FAR max allowed including residential.

Allowable FAR in Zone MU4:
*In the MU-4 and MU-5 zones, an existing building on a lot with an area 10,000 sq. ft. or less, may have a maximum density of 2.0 FAR for non-residential uses, provided the uses are located in the ground story and the story directly above the ground story. For new construction, any additional use is limited to 0.5 FAR.” DC Zoning Code 402.1

Existing Lot - 1,222 sqft
Existing Building - 1,048.33 sqft (20’-0"x52’-5")
Existing Lot Coverage: 85.8%

1st floor - .858 FAR (1,048.33 sqft)

1st and 2nd floors - 1.716 FAR (2,096.66 sqft)

2.0 FAR = 2,444 sqft
347.34 sqft additional allowable (20' x 17.36') - .284 FAR  

 

Occupancy - 49 w/Single Egress (ICC -Table 1006.2.1)

49 Maximum Occupant Load with 1 Egress

1006.3.2 - A single exit shall be permitted when the exit discharges directly to the exterior at the level of exit discharge (including from an occupied roof) Two Exits

75’ Max Common Path of Egress Travel Distance

 

Occupancy - 58/99 w/Double Egress (ICC 1007)

Seating Occupancy w/2 Egress - 58 seats (15 sq ft/seat)
99 Maximum Occupant Load with 2 Exits

Available Floor Space (2nd Floor) - 871.8
Occupancy (non seated) - 174 (5 sqft/ person)

**Unconcentrated Tables and Chairs (ICC-Table 1004.1.2)

 

Distance Between 2 Separate Egresses

18'-8" - Allowable Min. Separation Distance Between 2 Egresses
(1/3 Diagonal Dimension of Area Served)

Diagonal Dimension of Area Served: (20'x52'-5"):  56'-1"

Where a building is equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2, the separation distance between 2 egresses shall be not less than one-third of the length of the maximum overall diagonal dimension of the area served. (1007.1.1)

* Does the 2nd egress need to be covered? 

75’ Max Common Path of Egress Travel Distance

 

Stairwells 1011

36” wide - 49 or fewer occupants
44” wide - 50 or more occupants
80” headroom
Stair treads 7x11

Stair headroom - 1011.3
Spiral stairways 1011.10

  

Bathrooms

1 per 75?? ICC Table 2902.-

 

ADA Accessability

Existing buildings are exempt 1009.1

 

Height

50’ Height Allowable (current 28'??)

 

Sprinklers

Sprinkler system 903.2.1.2 (A-2)
- standards NFPA 13??
- every 15’. 130 sqft per head (min 6’)
- 1’ below ceiling unless recessed type
- 7.5’ from wall
- when occupancy is 100 or more
- when fire area located on floor other than level of exit discharge.
- Design
- Pex tubing?? Watts fittings.
- Viking Concealed Sprinkler heads - 474 (Commercial??)

 

Rooftop Occupany

Penthouse required ICC 1510.2

 

Other Requirements for Permitting

Energy Verification Sheet
Eating Establishment Questionnaire
Notification Letter for Neighbor