
401 W 4th St Boston — Photo 1 of 11
$1,199,000
Investment Analysis — 401 W 4th St
Boston, MA 02127 — South Boston
Based on rent reported on the MLS listing, a 2-unit multi-family in 02127 carries $5,000/mo in gross rent — about a 2.95% cap rate and $35,378/yr in estimated NOI at the $1,199,000 list price. Adjust every assumption in the calculator below.
Beds
5
Baths
5
SqFt
2,795
Style
Multi Family
Built
1900
Amazing opportunity to develop a single family to a 4 floor two family with approved plans included in the sale. The building currently features 3 floors of living space, 4 bedrooms, and a partially finished walk out basement delivered vacant. The plans have both units being coveted duplexes with generous square footage and the ability to extend the living area even further by maximizing the by right FAR of 2.0. Buyer has the ability to flip as condos or hold for great rental returns.
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 MLS and other third-party data may be inaccurate or out of date.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.
Property Details
Financials
Parking
Interior Specifications
Climate & Utilities
Building & Exterior
Property & Lot
Geography
Property History
$1,199,000
Aug 13, 2026
MLS® 73563437
$1,199,000
Aug 8, 2026
MLS® 73532773
$1,199,000
Aug 8, 2026
MLS® 73532774
$1,199,000
Jun 9, 2026
MLS® 73532773
$1,199,000
Jun 9, 2026
MLS® 73532774
Listing Agent: Calder Billings
Listing Office: Keller Williams Realty
MLS® Number: 73563437









