15+ might be pushing it, but 15 and under, there are a few good coffee shops. Check out vivace on cap hill (denny and broadway). they have a room with a door, and a few tables. they like groups to use the space (and drink coffee).

There is a calendar you can fill in to schedule the space. Make sure you do this well ahead of time before announcing your date, as it can be busy.

Online Coffee will somewhat tolerate groups, and let you move tables, but put things back the way they were.

…and since summer is coming, we generally move our little gatherings outdoors at some of the local parks.

Just remember, its free as “buy our products and we’ll let you sit here for hours” free.

The Seattle public libraries have free meeting rooms too. Check the websites for the individual branches for specifics.

Dude, me and some bicyclist who happened to be drinking too were at the Madrona Alehouse and there were a bunch of kids just running around the restaurant too.

Don’t know if you ever found your meeting space, but if you have a nonprofit affiliation, you could try Gilda’s Club in Capitol Hill. See: http://www.gildasclubseattle.org/about/ClubhouseTour.php