I am an independent officiant, and I have performed weddings in pretty much any kind of setting you can imagine. Just today, for example, I performed one in the solarium at our local senior center. (The couple was in their 20's.)
Does your favorite restaurant have a private room? Rent an arch (or buy one from Hobby Lobby or Michaels) to set aside an area for holding your ceremony. Or just ask them to place a high-top cocktail table on either side of an area, then add a flower arrangement on top, to delineate where your ceremony will take place.
Check your parks and recreation department for a private room or a garden park you can use.
Is there an arboretum or botanic garden nearby? Most have lovely settings where weddings can be held.
Check with your local Elks, VFW, or Foreign Legion -- many have rooms you can rent.
A local college or museum may have a space suitable for your ceremony. I even performed a wedding in a library once.
Does someone you know live in a condo or apartment complex that has a community or party room? They are usually smaller and more intimate, ideal for your size gathering.
You can hold a wedding ceremony pretty much anywhere -- get creative, think outside the box, and I'll bet you'll come up with the perfect place.
Marti Barton, Officiant