Anyone have any personal experience with function rooms at hotels around Sukhumvit?

Food should be Thai oriented. I think a function room would be better than a restaurant because we can take our kids and her friends can take their kids. Approx 12-20 guests.

Appreciate any advice.

The Four Seasons just off Sukhumvit.

Book the lounge on the 7th floor. It should be re-name the Yingluck suite.

Consider one of the riverboats. The larger ones have private function rooms.

Almost every hotel and almost every restaurant in Thailand offers this, and Sukhumvit stretches from Soi Zero to the Cambodian border. You might get more useful answers if you are more specific about the area and the price range.