Nestled on picturesque Marlborough Street, this renovated 4-bedroom, 4-full, and 3-half-bathroom single-family home seamlessly blends modern luxury with Back Bay's timeless charm. Designed to the highest standards, it offers both contemporary comfort and historic grandeur. An elevator serves all levels, culminating in a family/media room with a rooftop terrace. The entire third floor is dedicated to a luxurious primary suite featuring a dressing room, a sitting room/office, and a radiantly heated bathroom with marble clad bath. The parlor level boasts a custom kitchen with top-tier integrated appliances adjacent to a formal dining room and living room. Additional details include three gas fireplaces, two wet bars, walnut built-ins, and chevron-patterned floors. A private garden patio and a guest/au pair suite with a wet bar further enhance the home. Completing this exceptional offering are three radiantly heated brownstone parking spaces, ensuring year-round convenience.