46 River Rd, Cos Cob, CT 06807 Property Records

Greenwich Town property record for 46 River Rd, Cos Cob, CT 06807

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,891 sqft · built 1949
Lot Size	0.22 acres (9,583 sqft)
Owner	2 Individual Names on Record
Last Sale	$697,000 (Jul 2010)
Tax Bill	$6,806 (2025)
Deeds & Mortgages	Nov 2025 Line of Credit May 2022 Refinance + 1 more
Flood Zone	Zone X (minimal risk)
APN	`08-3323S`

Property Details

APN / Parcel Number

Primary APN	`08-3323S`
Alternative APNs	`GREE M:08 B:3323/S` `366/185`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	10 Rooms
Stories	2 Stories
Building Area	1,891 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1949
Effective Year Built	Effective 1970
Architectural Style	Cape Cod
Exterior Material	Aluminum/Vinyl
Construction Type	Frame
Roof Type	Gable
Roof Material	Asphalt
Lot Area	9,583 sqft (0.22 acres)
Garage Type	Detached
Parking Spaces	1 Parking Space
Deck Area	Deck Area

Utilities, Heating & Cooling

Heating System	Hot Water
Heating Fuel	Gas

Location & Zoning

Account Number	366/185
Street Address	46 RIVER RD
City	COS COB
State	CT
Zip	06807-2726
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R-7
Legal Block	3323/S
Jurisdiction	GREENWICH CT
Township / Civil Division	GREENWICH
Census Block Group	1
Census Block	1004
Census Tract	10800

Owner

Source: Greenwich Town records, as of June 25, 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 Record
Mailing Address	46 RIVER RD, COS COB, CT 06807-2726
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Nov 10, 2025	Deed of Trust, Mortgage · Line of Credit CITIZENS BANK
May 10, 2022	Deed of Trust, Mortgage · Stand-Alone Refinance CITIZENS BANK
Mar 15, 2022	Deed of Trust, Mortgage · Stand-Alone Refinance CITIZENS BANK

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 30, 2010 · Amount on Record
Deed Sale	Jul 30, 2010 · Amount on Record
Prior Sale	Jun 18, 2004 · Amount on Record
Deed Book / Page	5986 / 182
Record Updated	Oct 29, 2026

November 2025: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	GREENWICH CT
Property Address	46 RIVER RD, COS COB, CT 06807-2726
Transaction Type	Mortgage
Record Updated	Nov 26, 2025

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	008499-212
Date	Nov 10, 2025
Book Page	8499/212
Instrument	6650

Lender

Name	CITIZENS BANK
Type	Bank

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	301 Months
Due	Dec 1, 2050

May 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	GREENWICH CT
Property Address	46 RIVER RD, COS COB, CT 06807-2726
Transaction Type	Mortgage
Record Updated	May 26, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	008105-139
Date	May 10, 2022
Book Page	8105/139
Instrument	4234

Lender

Name	CITIZENS BANK
Type	Bank

Agreement

Type	Stand-Alone Refinance
Amount	Amount Recorded
Term	301 Months
Due	Jun 1, 2047

March 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	GREENWICH CT
Property Address	46 RIVER RD, COS COB, CT 06807-2726
Transaction Type	Mortgage
Record Updated	Mar 31, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	008075-192
Date	Mar 15, 2022
Book Page	8075/192
Instrument	2396

Lender

Name	CITIZENS BANK
Type	Bank

Agreement

Type	Stand-Alone Refinance
Amount	Amount Recorded
Term	361 Months
Due	Apr 1, 2052

Tax Assessment & Valuation

Source: Greenwich Town assessment roll, as of June 25, 2026

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$6,806.00 (+0.01%)	$550,690 (-) Land $402,220 Building $148,470	$385,483 Land $281,554 Building $103,929
2024	$6,805.00 (+6.2%)
2023	$6,408.00 (+0.93%)	$550,690 (-) Land $402,220 Building $148,470
2022	$6,349.00	$550,690 Land $402,220 Building $148,470

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

Flood

Source: FEMA National Flood Hazard Layer, effective November 28, 2025

FEMA Flood Zone	Zone X minimal risk
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it

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

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Not rated no burnable land within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	AQUARION-EASTERN FAIRFIELD COUNTY private · serves 351,756 people · EPA ID CT0150011
Water Source	Surface water
Last State Inspection	Jun 2025
Lead	Under 1 ppb (2026) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	24 last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 288 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Optimum Fiber · Cable	8,000 / 8,000
Verizon Fiber · Fixed Wireless in parts of the area	980 / 880

May also be available: Frontier, T-Mobile.

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