Co-op of the Day: 307 6th Avenue #1F

This attractive townhouse apartment at 307 6th Avenue has just hit the market with a price tag of $525,000. The one-bedroom co-op has attractive prewar details as well as some nice updates. It’s also got a washer/dryer and a shared roof deck with views over the Park Slope neighborhood. You like? 307 6th Avenue [Warren…