CSTM HAUS | 125 followers on LinkedIn. This HAUS Is Your House | CSTM HAUS is your house. Nestled at the helm of the Meatpacking district’s iconic cobblestone corner, CSTM HAUS sits on the 3th and 4th floor of the "little flatiron building", and is designed for coworking and to host anything from private seated dinners to multi-day brand events and conferences alike. Show off your chef skills in the custom built kitchen, let the 19 wraparound windows be the backdrop to your celebration, showcase a site-specific art installation in our sunlit loft, and share stories around a dramatic customizable Restoration Hardware table that accommodates up to 52ppl seated.