Rare, fully leased legal three-family in the heart of Cos Cob--a turnkey investment in one of Greenwich's most desirable neighborhoods. All three units are occupied and income-producing, with separately metered gas and water that keep owner costs low and net income clean. Updated mechanicals mean reduced capital risk and genuine turnkey ownership. Hardwood floors, high ceilings, and abundant natural light give each unit lasting tenant appeal, plus off-street parking. Minutes to Metro-North, top Greenwich schools, shops, and dining. Legal three-families are a true rarity here--dependable cash flow today with built-in rental upside tomorrow. Full financials available upon request. An exceptional opportunity for investors and owner-occupants alike.
For sale
$1,395,000
73 Cos Cob Ave, Cos Cob, CT 06807
5beds
3baths
2,805sqft
Multi Family
Built in 1920
-- sqft lot
$1,603,300 Zestimate®
$497/sqft
$-- HOA
What's special
High ceilingsAbundant natural lightOff-street parkingHardwood floors
- 1 day
- 259
- 20
Zillow last checked:
Listing updated:
Listed by:
Jose Cuartas 203-921-6154,
Corcoran Centric Realty LLC
Source: Greenwich MLS, Inc.,MLS#: 125998
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 5
- Bathrooms: 3
- Main level bathrooms: 1
- Main level bedrooms: 2
Heating
- Natural Gas, Hydro-Air
Cooling
- Window Unit(s)
Interior area
- Total structure area: 2,805
- Total interior livable area: 2,805 sqft
Property
Parking
- Total spaces: 4
- Parking features: Off Street
Lot
- Size: 0.25 Acres
Details
- Parcel number: 81763/S
- Zoning: R-6
Construction
Type & style
- Home type: MultiFamily
- Property subtype: Multi Family
Materials
- Vinyl Siding
- Roof: Shingle
Condition
- Year built: 1920
- Major remodel year: 1996
Utilities & green energy
- Water: Public
Community & HOA
Location
- Region: Cos Cob
Financial & listing details
- Price per square foot: $497/sqft
- Tax assessed value: $830,200
- Annual tax amount: $8,704
- Date on market: 10/6/2026
Estimated market value
$1,603,300
$1.43M - $1.80M
$4,748/mo
Price history
| Date | Event | Price |
|---|---|---|
| 10/6/2026 | Listed for sale | $1,395,000+105.1%$497/sqft |
Source:  Greenwich MLS, Inc. #125998 Report a problem | ||
| 10/22/2012 | Sold | $680,000-2.7%$242/sqft |
Source:  Smart MLS #98539873 Report a problem | ||
| 5/20/2012 | Listed for sale | $699,000+107.4%$249/sqft |
Source: Coldwell Banker Residential Brokerage - Greenwich Office #98539873 Report a problem | ||
| 6/11/1996 | Sold | $337,000$120/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $8,020 +3.6% | $648,900 |
| 2024 | $7,745 +2.6% | $648,900 |
| 2023 | $7,551 +0.9% | $648,900 |
| 2022 | $7,482 +19.1% | $648,900 +24.3% |
| 2021 | $6,283 +0.2% | $521,850 |
| 2020 | $6,273 -1% | $521,850 |
| 2019 | $6,335 +2.3% | $521,850 |
| 2018 | $6,194 -1.2% | $521,850 |
| 2017 | $6,272 +6.4% | $521,850 +5.6% |
| 2015 | $5,896 +2.6% | $494,410 |
| 2014 | $5,748 +2.8% | $494,410 |
| 2013 | $5,592 +2.8% | $494,410 |
| 2012 | $5,439 +3.4% | $494,410 |
| 2011 | $5,261 -9% | $494,410 -22.7% |
| 2010 | $5,781 +3.4% | $639,450 |
| 2009 | $5,589 +3.6% | $639,450 |
| 2008 | $5,397 +3.5% | $639,450 |
| 2007 | $5,212 +3.8% | $639,450 |
| 2006 | $5,020 +2.3% | $639,450 +57.5% |
| 2005 | $4,909 +3.6% | $406,000 |
| 2004 | $4,738 +3.4% | $406,000 |
| 2003 | $4,584 | $406,000 |
Find assessor info on the county website
Monthly payment
Est. payment
Payment breakdown
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Neighborhood: Cos Cob
Nearby schools
Schools provided by the listing agent
- Elementary: Cos Cob
- Middle: Central Middle
Source: Greenwich MLS, Inc.. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
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