Marc Murphy is used to working in big open kitchens, both at his restaurants and in the downtown Manhattan loft where he and his family lived for 12 years. So when the chef and his wife, Pam, decided to move to a prewar Upper West Side apartment with their kids Campbell, 16, and Callen, 12, they had to completely rework the space for their family. “Most prewar apartments have the kitchen far away from everything, which is not how we live,” Pam says. They decided to gut the apartment, and after an 18-month renovation, they ended up with this sleek kitchen—equipped with three Wolf ovens for entertaining. In the new configuration the room opens into the den, so Marc can be a part of the fun whether he’s cooking for…