7 comfortably. 8 uncomfortably.
We have plans to build onto the house. Assuming we get that done - we'll should be able to move the workout equipment out of the basement and fit another couple in.
Neither of us are willing to get rid of the workout equipment (it gets used daily) or move to the suburbs to get a bigger house (we love being downtown) - and I won't let pins live in the dining or living room. So yes - it's all my fault.