Charming, colorful 1874 Victorian just a short walk to Harvard Sq. Preserved details include original wd fls, period mouldings, +hi ceilings blended w/contemporary features such as AC+ EV charging capability. LR has bay windows, crown moulding, built-ins. DR has wall of sliding glass doors to patio+fenced yard. EIK has black soapstone+white marble counters; built-in Canadian birch plywood banquette+cabinetry; tile backsplash; ss induction range, refrigerator, vent hood, + dw. Second fl has lg front bdrm, once occupied by W.E.B. DuBois while at Harvard; full tiled bath off hall; primary bdrm w/custom closets; hall linen+storage closets; laundry; + sunken office w/yd view. Top fl has small bdrm, flex room, + full bath w/spa tub+skylight. Pollinator garden + meandering grape arbor make the yard feel private + bucolic. Unfinished basement has systems + storage/workshop space. Just 1 block from the Charles River + 2 blocks from Harvard Sq., this is an ideal location with great walkability.
Sold for $2,505,000
$2,505,000
20 Flagg St, Cambridge, MA 02138
3beds
2,130sqft
Single Family Residence
Built in 1874
3,600 Square Feet Lot
$2,518,300 Zestimate®
$1,176/sqft
$7,799 Estimated rent
Home value
$2,518,300
$2.34M - $2.72M
$7,799/mo
Zestimate® history
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List your homeWhat's special
Original wd flsMeandering grape arborEv charging capabilityPollinator gardenUnfinished basementTile backsplashVent hood
Zillow last checked:
Listing updated:
Listed by:
Thalia C. Tringo 617-513-1967,
Thalia Tringo & Associates Real Estate, Inc. 617-616-5091
Bought with:
Lauren Holleran Team
Gibson Sotheby's International Realty
Source: MLS PIN,MLS#: 73438031
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 3
- Bathrooms: 3
- Full bathrooms: 2
- 1/2 bathrooms: 1
Primary bedroom
- Level: Second
Bedroom 2
- Level: Second
Bedroom 3
- Level: Third
Bathroom 1
- Level: First
Bathroom 2
- Level: Second
Bathroom 3
- Level: Third
Dining room
- Level: First
Kitchen
- Level: First
Living room
- Level: First
Office
- Level: Second
Heating
- Forced Air, Natural Gas
Cooling
- Central Air
Appliances
- Included: Range, Dishwasher, Refrigerator, Washer, Dryer, Range Hood
- Laundry: Second Floor
Features
- Home Office
- Flooring: Wood, Tile
- Basement: Full,Interior Entry,Bulkhead,Unfinished
- Number of fireplaces: 1
Interior area
- Total structure area: 2,130
- Total interior livable area: 2,130 sqft
- Finished area above ground: 2,130
- Finished area below ground: 0
Property
Parking
- Total spaces: 1
- Parking features: Off Street, Driveway
- Uncovered spaces: 1
Features
- Patio & porch: Porch, Deck, Patio
- Exterior features: Porch, Deck, Patio, Fenced Yard, Garden
- Fencing: Fenced
Lot
- Size: 3,600 sqft
- Features: Other
Details
- Parcel number: M:00130 L:00087,408347
- Zoning: C-1
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Victorian
- Property subtype: Single Family Residence
Materials
- Foundation: Stone, Brick/Mortar
- Roof: Shingle
Condition
- Year built: 1874
Utilities & green energy
- Electric: Circuit Breakers
- Sewer: Public Sewer
- Water: Public
Community & neighborhood
Community
- Community features: Public Transportation, Shopping, Park, Walk/Jog Trails, Bike Path, Highway Access, T-Station, University
Location
- Region: Cambridge
Price history
| Date | Event | Price |
|---|---|---|
| 11/19/2025 | Sold | $2,505,000+0.4%$1,176/sqft |
Source: MLS PIN #73438031 Report a problem | ||
| 10/10/2025 | Contingent | $2,495,000$1,171/sqft |
Source: MLS PIN #73438031 Report a problem | ||
| 10/1/2025 | Listed for sale | $2,495,000+98.3%$1,171/sqft |
Source: MLS PIN #73438031 Report a problem | ||
| 4/22/2010 | Sold | $1,258,150-2.8%$591/sqft |
Source: Public Record Report a problem | ||
| 2/26/2010 | Listed for sale | $1,295,000+6.3%$608/sqft |
Source: Richard Beaty #71037348 Report a problem | ||
| 3/2/2006 | Sold | $1,218,600+148.7%$572/sqft |
Source: Public Record Report a problem | ||
| 10/30/1995 | Sold | $490,000+21%$230/sqft |
Source: Public Record Report a problem | ||
| 10/16/1992 | Sold | $405,000+64.8%$190/sqft |
Source: Public Record Report a problem | ||
| 6/15/1987 | Sold | $245,700$115/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $17,212 +7.6% | $2,710,500 +0.4% |
| 2024 | $15,989 +6.9% | $2,700,800 +5.8% |
| 2023 | $14,959 +5.1% | $2,552,700 +6.2% |
| 2022 | $14,236 +5.6% | $2,404,700 +4.4% |
| 2021 | $13,478 +6.5% | $2,304,000 +4.7% |
| 2020 | $12,655 +9.7% | $2,200,800 +13.3% |
| 2019 | $11,535 +2% | $1,942,000 +8% |
| 2018 | $11,312 +2.6% | $1,798,400 +5.8% |
| 2017 | $11,030 +6.6% | $1,699,600 +14.9% |
| 2016 | $10,343 +2% | $1,479,700 +14.1% |
| 2015 | $10,140 -2.1% | $1,296,700 +4.9% |
| 2014 | $10,360 -1.8% | $1,236,300 +1.5% |
| 2013 | $10,548 +0.4% | $1,218,000 -1.7% |
| 2012 | $10,506 +16.9% | $1,238,900 +12.5% |
| 2011 | $8,987 +5.5% | $1,101,300 -0.2% |
| 2010 | $8,517 +2.1% | $1,103,300 |
| 2009 | $8,341 +0.5% | $1,103,300 -2.2% |
| 2008 | $8,299 +1.5% | $1,127,600 +3.1% |
| 2007 | $8,178 +7.9% | $1,093,300 +6.4% |
| 2006 | $7,580 | $1,027,100 +5.4% |
| 2005 | $7,580 -5.9% | $974,300 -7.7% |
| 2004 | $8,057 +17.7% | $1,055,900 +12% |
| 2003 | $6,845 +5.6% | $942,800 +5% |
| 2002 | $6,483 +9.7% | $897,900 +46.5% |
| 2000 | $5,908 | $612,900 +25% |
| 1999 | -- | $490,300 |
Find assessor info on the county website
Neighborhood: Riverside
Nearby schools
GreatSchools rating
- 8/10Martin Luther King, Jr. SchoolGrades: PK-5Distance: 0.1 mi
- 7/10Putnam Avenue Upper SchoolGrades: 6-8Distance: 0.1 mi
- 8/10Cambridge Rindge and Latin SchoolGrades: 9-12Distance: 0.5 mi
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Estimated market value
$2,518,300
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Estimated market value
$2,518,300
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