674 River Rd, Cos Cob, CT 06807 Property Records

Greenwich Town property record for 674 River Rd, Cos Cob, CT 06807

Property Summary

Property Type	Single Family Home
Lot Size	1.07 acres (46,609 sqft)
Owner	2 Individual Names on File
Last Sale	$391,250 (Nov 1993)
Tax Bill	$12,980 (2025)
Flood Zone	Zone X (minimal risk)
APN	`12-1563S`

Property Details

APN / Parcel Number

Primary APN	`12-1563S`
Alternative APNs	`GREE M:12 B:1563/S` `400/007`

Exterior

Lot Area	46,609 sqft (1.07 acres)
View / Lot	Waterfront
Deck Area	Deck Area
Boat Access	Boat Access
Total Buildings	2 Buildings

Utilities, Heating & Cooling

Cooling System	HVAC

Location & Zoning

Account Number	400/007
Street Address	674 RIVER RD
City	COS COB
State	CT
Zip	06807-1907
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RA-1
Legal Block	1563/S
Jurisdiction	GREENWICH CT
Township / Civil Division	GREENWICH
Census Block Group	3
Census Block	3000
Census Tract	10202

Owner

Source: Greenwich Town records · APN 12-1563S

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	674 RIVER RD, COS COB, CT 06807-1907
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Nov 10, 1993 · Amount on Record
Deed Sale	Nov 10, 1993 · Amount on Record
Deed Book / Page	2463 / 264
Record Updated	Sep 20, 2026

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	$12,980.00	$1,050,210 (-) Land $708,540 Building $341,670	$735,147 Land $495,978 Building $239,169
2024	$12,980.00 (+6.22%)
2023	$12,220.00 (+0.92%)	$1,050,210 (-) Land $708,540 Building $341,670
2022	$12,109.00	$1,050,210 Land $708,540 Building $341,670

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of November 28, 2025 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Nearest Special Flood Hazard Area	Zone AE, within 100 ft
Flood Insurance Requirement	Not required lenders may require it

Wildfire

Wildfire Risk	Low lower than 97% of the US · lower than 95% of Connecticut
Wildfire Likelihood	Under 0.01% annual chance
Exposure	Direct burnable vegetation at the parcel

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

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
Optimum Communications Fiber · Cable	8,000 / 8,000
Frontier Fiber	7,000 / 7,000

May also be available: Verizon.

Based on FCC filings for 131 locations within half a mile of this property.

Cell Coverage

4G LTE (outdoors only), no 5G reported

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	AQUARION-EASTERN FAIRFIELD COUNTY private · serves 351,756 people
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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.