Discover 102 Valley Road, Unit 20, a picture-perfect, beautifully upgraded two-bedroom, one-and-a-half-bath residence in the sought-after Portal Rock II community. Freshly painted, enhanced with new appliances, and thoughtfully updated throughout, no stone has been left unturned in creating this inviting, move-in-ready home. The expansive private terrace is a rare condominium luxury--perfect for entertaining, or simply enjoying your own peaceful outdoor retreat. The main level offers comfortable, easy living, while the versatile lower level features a home office or den, space for a gym, and abundant storage. Easy access to the Cos Cob train station, local schools, village shops, restaurants, and the Cos Cob Library. Simply unpack and enjoy the best of Cos Cob living!
Coming soon
$775,000
102 Valley Rd APT 20, Cos Cob, CT 06807
2beds
1,096sqft
Residential, Condominium
Built in 1973
-- sqft lot
$769,800 Zestimate®
$707/sqft
$758/mo HOA
What's special
- 8 hours
- 213
- 13
Zillow last checked:
Listing updated:
Listed by:
Susan Connal 203-536-6655,
Coldwell Banker Realty
Source: Greenwich MLS, Inc.,MLS#: 126086
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 2
- Bathrooms: 2
- Full bathrooms: 1
- 1/2 bathrooms: 1
Heating
- Natural Gas, Forced Air
Cooling
- Central Air
Features
- Built-in Features
- Basement: Full,Partially Finished
- Has fireplace: No
Interior area
- Total structure area: 1,096
- Total interior livable area: 1,096 sqft
Property
Parking
- Parking features: Assigned
Features
- Patio & porch: Terrace
- Exterior features: Rock Garden
Lot
- Features: Parklike
Details
- Parcel number: 08A1445/S
- Zoning: R-6
Construction
Type & style
- Home type: Condo
- Architectural style: Colonial
- Property subtype: Residential, Condominium
Materials
- Shingle Siding, Brick
- Roof: Asphalt
Condition
- Year built: 1973
- Major remodel year: 2026
Utilities & green energy
- Water: Public
Community & HOA
HOA
- Has HOA: Yes
- Services included: Trash, Snow Removal, Maintenance Grounds
- HOA fee: $758 monthly
- Second HOA name: Portal Rock II
Location
- Region: Cos Cob
Financial & listing details
- Price per square foot: $707/sqft
- Tax assessed value: $420,840
- Annual tax amount: $4,412
- Date on market: 10/19/2026
- Inclusions: Washer/Dryer, All Kitchen Applncs
Estimated market value
$769,800
$716,000 - $831,000
$4,666/mo
Price history
| Date | Event | Price |
|---|---|---|
| 1/8/2018 | Sold | $510,000-1%$465/sqft |
Source:  Greenwich MLS, Inc. #101417 Report a problem | ||
| 11/9/2017 | Pending sale | $515,000$470/sqft |
Source: Coldwell Banker Residential Brokerage - Old Greenwich Office #170027825 Report a problem | ||
| 10/28/2017 | Listed for sale | $515,000+11.7%$470/sqft |
Source: Coldwell Banker Residential Brokerage - Old Greenwich Office #170027825 Report a problem | ||
| 2/20/2008 | Sold | $461,000$421/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $5,113 +3.5% | $413,700 |
| 2024 | $4,938 +2.6% | $413,700 |
| 2023 | $4,814 +0.9% | $413,700 |
| 2022 | $4,770 +30.1% | $413,700 +35.8% |
| 2021 | $3,667 +0.2% | $304,570 |
| 2020 | $3,661 -1% | $304,570 |
| 2019 | $3,697 +2.3% | $304,570 |
| 2018 | $3,615 -1.3% | $304,570 |
| 2017 | $3,661 +0.3% | $304,570 -0.5% |
| 2015 | $3,650 +2.6% | $306,110 |
| 2014 | $3,559 | $306,110 |
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
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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