405 Marlborough St #31 Boston — Photo 1 of 24
$810,000
Investment Analysis — 405 Marlborough St #31
Boston, MA 02115 — Back Bay
Based on HUD Small Area Fair Market Rent for Boston-Cambridge-Quincy, MA-NH HUD Metro FMR Area, a 1-bedroom in 02115 carries an estimated $2,800/mo in gross rent — about a 1.82% cap rate and $14,710/yr in estimated NOI at the $810,000 list price. Adjust every assumption in the calculator below.
Beds
1
Baths
1
SqFt
640
Style
Condominium
Built
1890
CHARMING BACK BAY 1-BEDROOM | COMMON ROOF DECK | IN-UNIT LAUNDRY. Experience the best of Back Bay living in this charming 1-bedroom, 1-bath residence ideally located near the Charles River, Prudential Center, Fenway, the T, boutique shopping, and exceptional dining. The sun-filled living room features elegant bay windows, classic built-in shelving, and a beautiful fireplace, creating a warm and inviting space with timeless Boston character. The kitchen offers custom cabinetry, granite countertops, and stainless steel appliances, while hardwood floors run throughout the home. The spacious bedroom provides a generous walk-in closet, with additional storage in the hallway and bedroom. An in-unit washer/dryer adds everyday convenience. Enjoy the ultimate city escape from the common roof deck, offering beautiful views of the Charles River and Boston skyline. A wonderful opportunity to enjoy classic Back Bay charm with modern conveniences in one of Boston’s most desirable neighborhoods.
Estimates — not financial advice
These figures are illustrative estimates for informational purposes only — not an appraisal, valuation, or guarantee of rent, income, or returns, and not financial, tax, or investment advice. Rent is either the figure reported on the MLS listing — in-place rent that may differ from market and is not verified against the actual leases — or, where the listing reports none, an estimate from HUD Small Area Fair Market Rents, a government benchmark that may differ from actual market rent. Each figure is labelled with its source. Cap rate, NOI, and returns depend on the assumptions shown, which you can change. MLS and other third-party data may be inaccurate or out of date. Verify all figures independently and consult your own financial, tax, and legal advisors before making any investment decision.
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Property Details
Financials
Parking
Interior Specifications
Climate & Utilities
Building & Exterior
Property & Lot
Amenities & Appliances
Range • Dishwasher • Refrigerator • Washer/Dryer
Neighborhood
Public Transportation • Shopping • Walk/Jog Trails • Highway Access • T-Station
Geography
Property History
$810,000
Sep 17, 2026
MLS® 73579058
$810,000
Dec 31, 2025
MLS® 73418324
$810,000
Aug 14, 2025
MLS® 73418324
$3,500
Oct 10, 2024
MLS® 73299093
$3,500
Oct 5, 2024
MLS® 73299093
Listing Agent: Krassi Diehl
Listing Office: William Raveis R.E. & Home Services
MLS® Number: 73579058
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