21 Harvard St #4 Boston — Photo 1 of 24
Recent Drop: $15,000
$700,000
Investment Analysis — 21 Harvard St #4
Boston, MA 02129 — Charlestown
Based on HUD Small Area Fair Market Rent for Boston-Cambridge-Quincy, MA-NH HUD Metro FMR Area, a 1-bedroom in 02129 carries an estimated $3,380/mo in gross rent — about a 3.12% cap rate and $21,834/yr in estimated NOI at the $700,000 list price. Adjust every assumption in the calculator below.
Beds
1
Baths
1
SqFt
676
Style
Condominium
Built
1899
Tucked away in Charlestown’s City Square, this oversized one bedroom, one bathroom condo offers a rare blend of charm and modern updates. The bedroom features soaring ceilings and a charming loft, creating a flexible retreat perfect for additional storage, a reading nook, or a creative workspace. The freshly renovated bathroom is flooded with natural light. Open up the Juliette balcony skylight to enjoy fresh air and views, adding to the home's peaceful, tucked-away feel. Rich in character and thoughtfully updated, this one-of-a-kind residence offers the perfect balance of historic Charlestown charm and modern comfort.
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 MLS and other third-party data may be inaccurate or out of date.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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Interior Specifications
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Property History
$700,000
Was $715,000
Aug 20, 2026
MLS® 73555967
$715,000
Jul 28, 2026
MLS® 73555967
$620,000
Nov 5, 2024
MLS® 73292549
$599,000
Sep 19, 2024
MLS® 73292549
Listing Agent: Kerry D'Ambroise
Listing Office: Columbus and Over Group, LLC
MLS® Number: 73555967
