100 East Putnam is a ground-up, three-story mixed-use development located along Route 1 in downtown Cos Cob, CT. Designed and developed as an “80/20” market/workforce housing project under the Greenwich 6-110 program, the building delivers 22 thoughtfully designed one- and two-bedroom residences in a boutique-scale setting. Two levels of oversized luxury apartments rise above a ground floor featuring approximately 3,500 square feet of retail space, covered parking, and a welcoming tenant lobby. The residences are designed with open layouts, high-end finishes, and an emphasis on natural light, creating bright, modern living spaces suited for today’s lifestyle. The rooftop has been built out as a private amenity terrace, complete with grilling stations and lounge seating, offering residents an elevated outdoor retreat in the heart of downtown Cos Cob.