21 Harvard St # 4, Boston MA 02129
Estimate assumptions
20% down, a 30-year loan at 6.5%, and $200/month estimated insurance.
Includes the supplied property-tax and HOA inputs; missing inputs contribute $0. HOA fees with an unspecified frequency are treated as monthly. PMI and closing costs are excluded.
Adjust the payment calculatorTrack this home for price, status, and open-house alerts.
About this home
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.
View in the App
Save this property, schedule tours instantly, and get alerts when the price drops
Scan with phone
BMN Estimate
Get the number an algorithm can't give you
A free agent CMA factors in condition, upgrades, and the street — the things comps alone can't see.
Recently Sold Nearby
Price & Status History
Market Insights
Property Timeline
Price Reduced
Aug 20, 2026Listed for Sale
Jul 28, 2026Previous Transaction - MLS #73292549
Previously Sold
Nov 5, 2024| Date | Event | Price | Change | $/sqft | Details |
|---|---|---|---|---|---|
| 08/20/2026 | ↓ Price Reduced | $700,000 | $15,000 | - | From $715,000 to $700,000 (-2.1%) |
| 07/28/2026 | 🏠 Listed for Sale | $715,000 | - | - | Original listing |
| 11/05/2024 | 🏷️ Previously Sold | $620,000 | - | - | MLS #73292549 |
Tax History
| Year | Taxes | Assessment |
|---|---|---|
| 2025 | $6,515 | $562,600 |
Financial Details
Facts & Features
Home Facts
Interior
Exterior
Parking
Utilities
Financial
HOA & Community
MA Disclosures
Additional Details
Property Overview
Floor Layout
Interior Features
Construction & Materials
Utilities & Systems
Exterior & Lot
Parking & Garage
Special Features
Nearby Schools
School information not available for this location.
Monthly Payment Calculator
Monthly Payment Breakdown
Loan Summary
Rate Impact
Payment Over Time
Location
Neighborhood
Charlestown
21 Harvard St # 4, Boston MA 02129
Boston, MA 02129
Listing Information
Contact Us
Similar Homes for Sale
Comparable Properties
Customize Comparable Search
Finding comparable properties...