The Warren Place Mews is one of the most charming blocks of Cobble Hill, if not all of Brooklyn. It’s a gated street with 34 modest brick cottages that face a private courtyard. The mews dates back to the 1870s, when it was built by wealthy merchant and philanthropist Alfred Tredway White. White advocated for housing for the working class and built affordable housing all around Brooklyn. These homes in particular were used as workman’s cottages. But the mews has come a long way since then. This home, at 21 Warren Place, is now on the market for $1.495 million.