Step into sustainable luxury with this newly renovated 4-bedroom, 3.5-bathroom condo, masterfully transformed from a historic Mansard-style home into a highly efficient sophisticated home. Designed by a renowned sustainable architect, this exquisite property offers breathtaking views of the Boston skyline and features a unique alcove with a treetop view to inspire your creativity, built with high end materials and, and offers a well preserved charming water well in the yard. Step outdoors from one of the 2 spacious decks, or enjoy the serene patio in the landscaped and fenced in pet friendly yard, perfect for entertaining. Eco-conscious Zline appliances and amenities include an EV-charging station and the Energy Recovery Ventilation System for fresh, clean air. This gem offers affordable luxury at the intersection of Cambridge and Boston. Experience the future of green living in a vibrant, convenient neighborhood with a magical blend of historical charm and modern sophistication.