This Carroll Gardens brownstone, at 371 Clinton Street, has a lot going for it. It has been converted from a two-family home into a sprawling, four-story single family beauty. There’s a whole 3,400 square feet to enjoy, and man, is there a lot to enjoy. An interior renovation has struck the perfect balance between historic, classic brownstone design and more modern upgrades. And it makes sense, since the current owners specialize in home furnishing.