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Accessory Use

Phil B

SAWHORSE
Joined
Sep 15, 2018
Messages
199
Location
Florida
Opinion please: In the plan below, the Office / Storage area is less than 10% of all the spaces on this story, but is more than 10% of the 2 spaces it opens into. Serving and Pickup / Dining are open to each other. In this case, can Office / Storage be classified as 'accessory', and can you exit that space from behind the serving counter? Accessory Use.jpg
 
Yes... everything else is a single occupancy and therefore the office is less than 10%.

Be careful here... I suspect that you may be conflating occupancy classification and occupant load factor. Each color in the image represents a different occupant load factor (dining @ 15 net, serving @ 150 gross, kitchen @ 200 gross, and likely some standing space @5 net). However, the entire space as a whole is classified as Group A-2.
 
Adding to my preceding post...

Note that you may be able to avoid the Group A-2 designation and go with Group B via the following:

2021 IBC 303.1.1 Small Buildings and Tenant Spaces

A building or tenant space used for assembly purposes with an occupant load of less than 50 persons shall be classified as a Group B occupancy.

or​

2021 IBC 303.1.2 Small Assembly Spaces

The following rooms and spaces shall not be classified as Assembly occupancies:
  1. A room or space used for assembly purposes with an occupant load of less than 50 persons and accessory to another occupancy shall be classified as a Group B occupancy or as part of that occupancy.
  2. A room or space used for assembly purposes that is less than 750 square feet (70 m2) in area and accessory to another occupancy shall be classified as a Group B occupancy or as part of that occupancy.
 

303.3 Assembly Group A-2

Diagram
Group A-2 occupancy includes assembly uses intended for food and/or drink consumption including, but not limited to:
  • Banquet halls
  • Casinos (gaming areas)
  • Nightclubs
  • Restaurants, cafeterias and similar dining facilities (including associated commercial kitchens)
Looks like 303.1.1 would work to make the whole thing B.....
And...exiting thru the serving counter is OK? I'm thinking about not being able to exit thru intervening kitchen or similar spaces.
 
Agree with Steveray... I see no issue with the office egressing through the service area. Need to verify that an appliance doesn't protrude into the egress path, but it generally appears to not be an issue.
 
Agree with Steveray... I see no issue with the office egressing through the service area. Need to verify that an appliance doesn't protrude into the egress path, but it generally appears to not be an issue.
tHANK YOU ALL AGAIN!
 
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