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350 Washington Street Cambridge — Photo 1 of 41

$2,799,999

Investment Analysis — 350 Washington Street

Cambridge, MA 02139 — The Port

Based on HUD Small Area Fair Market Rent for Boston-Cambridge-Quincy, MA-NH HUD Metro FMR Area, a 6-bedroom in 02139 carries an estimated $5,300/mo in gross rent — about a 1.32% cap rate and $37,044/yr in estimated NOI at the $2,799,999 list price. Adjust every assumption in the calculator below.

View Standard Listing

Beds

Baths

3.5

SqFt

3,414

Style

Single Family

Built

1900

A distinctive Cambridge home blending historic architectural character with modern amenities and generous, open living spaces. Restored newel posts, classic moldings and original details bring warmth and craftsmanship to the interior, while expansive living and dining areas flow into a spacious kitchen designed for everyday living and entertaining. Six bedrooms offer tremendous flexibility for family, guests and home offices. Two private decks extend the living space outdoors, while the rear yard is a blank canvas ready to become a private city oasis. A brick herringbone driveway provides rare off-street parking for three cars. Ideally located in The Port between Central and Kendall Squares, with convenient Red Line access and proximity to Cambridge's world-renowned biotech, life-science and innovation centers. A unique combination of historic Cambridge character, substantial living space, outdoor space and modern city living. Properties of this size and quality are rare to this neighborhood. Don't miss out!

ADU Potential

Massachusetts allows one accessory dwelling unit by right in single-family zoning districts statewide (M.G.L. c. 40A §3; 760 CMR 71.00, effective Feb 2025). Estimated maximum ADU size for this property: 900 sq ft (the lesser of 900 sq ft or half the 3,414 sq ft principal dwelling). Lot size: 2,400 sq ft.

Based on listing data, which indicates the property type — not the zoning district. Local dimensional, septic (Title 5), and historic-district requirements still apply. Not legal advice — verify with the municipality.

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.