We visited with a 4H group of 6 teenagers, 2 adults, and our 3 young kids. This house was perfect for our group! The basement was basically its own little apartment so we (chaperones and little ones) were able to have some space from the big kids and give them privacy while maintaining the safety of being all together. It was a good location to get to sight seeing in DC quickly. The host has it set up to have most anything you might need. I appreciated the coffee and the kids appreciated the box of granola bars.
Only complaint is that the parking is a little tight to get into and out of but we were still able to fit two minivans into the off street parking spots.