671 River Rd, Cos Cob, CT 06807 Property Records

Greenwich Town property record for 671 River Rd, Cos Cob, CT 06807 · Last verified July 2026

Property Summary

Property Type	Single Family Home
Details	3 bd · 3.5 ba · 2,959 sqft · built 1945
Lot Size	2.35 acres (102,366 sqft)
Owner	2 Individual Names on File
Last Sale	$1,392,500 (Sep 2014)
Tax Bill	$14,198 (2025)
Deeds & Mortgages	Apr 2021 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`12-1548`

Property Details

APN / Parcel Number

Primary APN	`12-1548`
Alternative APNs	`GREE M:12 B:1548` `418/027`

Interior

Bedrooms	3 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	2,959 sqft Living Area
Attic	Attic
Attic Area	228 sqft
Basement Area	848 sqft
Unfinished Basement	848 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1945
Effective Year Built	Effective 1960
Architectural Style	Colonial
Exterior Material	Wood Siding
Construction Type	Frame
Roof Type	Gable
Roof Material	Asphalt
Lot Area	102,366 sqft (2.35 acres)
Garage Type	Detached
Parking Spaces	1 Parking Space
Deck Area	Deck Area

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Hot Water
Heating Fuel	Oil

Location & Zoning

Account Number	418/027
Street Address	671 RIVER RD
City	COS COB
State	CT
Zip	06807-1908
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Block	1548
Jurisdiction	GREENWICH CT
Township / Civil Division	GREENWICH
Census Block Group	3
Census Block	3002
Census Tract	10202

Owner

Source: Greenwich Town records · APN 12-1548

Assessment roll updated June 25, 2026 · Last verified July 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Individual Names on File
Mailing Address	671 RIVER RD, COS COB, CT 06807-1908
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Sep 18, 2014 · Amount on Record
Deed Sale	Sep 18, 2014 · Amount on Record
Deed Book / Page	6789 / 281
Record Updated	Sep 20, 2026

April 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	GREENWICH CT
Property Address	671 RIVER RD, COS COB, CT 06807-1908
Transaction Type	Mortgage
Record Updated	Apr 22, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	7858-271
Date	Apr 01, 2021
Book Page	7858/271
Instrument	3308

Lender

Name	WELLS FARGO BANK NA
Type	Bank

Agreement

Type	Balloon Mortgage
Amount	Amount Recorded
Term	361 Months
Due	May 01, 2051

Tax Assessment & Valuation

Source: Greenwich Town records · Assessment roll updated June 25, 2026 · Last verified July 2026

Property Jurisdictions

Type	Name
State	Connecticut
County Subdivision	Greenwich Town
Unified School District	Greenwich School District (PK - 12)

Tax Bill & Assessment History

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$14,198.00	$1,179,220 (-) Land $896,700 Building $282,520	$825,454 Land $627,690 Building $197,764
2024	$14,198.00 (+5.71%)
2023	$13,431.00 (+0.97%)	$1,179,220 (-) Land $896,700 Building $282,520
2022	$13,302.00	$1,179,220 Land $896,700 Building $282,520

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, County delivery 09001C, updated November 28, 2025 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X
Special Flood Hazard Area	No
Flood Hazard	Minimal
500-Year Floodplain	No
Nearest Special Flood Hazard Area	Zone AE, within 500 ft

Wildfire

Wildfire Risk	Low above 7% of the US · above 13% of Connecticut
Wildfire Likelihood	Less than 1 in 10,000 per year
Exposure	Direct burnable vegetation at the parcel

Values are read at the parcel center point; lenders make the official flood determination.