431 Marlborough St #PH

Taxes: $49,511.35 (2026)

About this home

This exceptional penthouse duplex seamlessly blends the timeless elegance of Back Bay architecture with the comfort and sophistication of modern living. Offering direct elevator access to both levels, the residence encompasses over 3,000 square feet of thoughtfully designed living space. The upper level unfolds as a bright, open living and entertaining space highlighted by soaring ceilings, a fireplaced living room, a skylit dining area, and a beautifully appointed custom kitchen, with a full bath conveniently located on the same level. Oversized glass doors open directly onto a private walk-out deck, creating effortless indoor-outdoor living, while a separate private roof deck offers sweeping Boston skyline views. The lower level features three spacious bedrooms, two full bathrooms, and a versatile lounge framed by custom built-ins, creating a flexible space for a family room or home office. Additional highlights include two deeded parking spaces and a pet-friendly association.

Property details

Sewer

Private

Style

Garrison, Cape

Water

City/Town Water

Cooling

Central Air, Individual, Unit Control

Heating

Forced Air, Gas, Hot Air Gravity

Master Bath

Yes

Construction

Brick

Garage

Deeded

Parking

1-10 Spaces, Detached