Even if it's not required I would definitely say to do so since we were there with about 15-20 people for a birthday dinner and because we called ahead they basically gave us our own room in the back
I believe the original question was WHEN do they need to make the reservation. As this place is often busy and fills up quickly, i would make it no less than 1 week in advance, but i would suggest that sooner is probably even better. Make it a month in advance, if they'll let you.
Ooka staff is EXTREMELY helpful and accommodating so I would call ASAP and tell them of your plans. Great choice, the food is awesome.
I would call and tell them Of Your Plans. The manager is so accommodating. We had out daughters 16th birthday there and they even made a nice little menu for her and her guests. Call now and let them know your plans and they will let you know when to reserve
Call ahead
If you know when you're going just call and ask them. They are very nice there.
At least a day ahead of time
I would think if you're bringing 30 people anywhere you need to make a reservation. If you show up without a reservation with 30 people they won't be able to seat you.
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