9 River Rd, Unit 403, Cos Cob, CT 06807 Property Records

Greenwich Town property record for 9 River Rd, Unit 403, Cos Cob, CT 06807

Property Summary

Property Type	Condominium
Details	2 bd · 2 ba · 1,125 sqft · built 1979
Lot Size	2.75 acres (120,022 sqft)
Owner	Individual Name on File
Last Sale	$704,000 (Sep 2023)
Tax Bill	$4,218 (2025)
Deeds & Mortgages	Sep 2023 Sale & Mortgage Nov 2020 Sale & Mortgage
Flood Zone	Zone AE (high risk)
APN	`08A-1667S`

Property Details

APN / Parcel Number

Primary APN	`08A-1667S`
Alternative APNs	`GREE M:08A B:1667/S` `367/D03`

Interior

Bedrooms	2 Beds
Full Baths	2 Baths
Total Rooms	4 Rooms
Units	20 Units
Stories	2 Stories
Building Area	1,125 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1979
Effective Year Built	Effective 1979
Architectural Style	Other
Exterior Material	Wood Siding
Construction Type	Frame
Roof Type	Gable
Roof Material	Asphalt
Lot Area	120,022 sqft
Deck Area	Deck Area

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Hot Water
Heating Fuel	Gas

Location & Zoning

Account Number	367/D03
Street Address	9 RIVER RD, 403
City	COS COB
State	CT
Zip	06807-2722
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Local Zoning Code	WB
Legal Subdivision	PALMER POINT
Legal Block	1667/S
Jurisdiction	GREENWICH CT
Township / Civil Division	GREENWICH
Census Block Group	1
Census Block	1011
Census Tract	10800

Owner

9 River Rd, Unit 403 is owned and occupied by an individual who bought it in September 2023.

Source: Greenwich Town records, as of October 20, 2026

Owner of Record	Individual Name on File
Mailing Address	9 RIVER RD, 403, COS COB, CT 06807-2722
Occupancy	Owner Occupied
Owner Type	Individual

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Sep 19, 2023	Warranty Deed, Transfer · Stand-Alone First Mortgage JPMORGAN CHASE BANK NA
Nov 12, 2020	Warranty Deed, Transfer · Stand-Alone First Mortgage ENVOY MORTGAGE LTD

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Sep 19, 2023 · Amount on File
Deed Sale	Sep 19, 2023 · Amount on File
Prior Sale	Nov 12, 2020 · Amount on File
Deed Document Number	20235577
Deed Book / Page	8259 / 295
Record Updated	Oct 29, 2026

September 2023: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	GREENWICH CT
Recording Date	Sep 19, 2023
Property Address	9 RIVER RD UNIT 403, 403, COS COB, CT 06807-2722
Document Number	008259-295
Book / Page	8259 / 295
Instrument Date	Sep 18, 2023
Instrument	5577
Transaction Type	Transfer
Record Updated	Nov 20, 2025

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1465 E PUTNAM AVE #428 # 428, 428, ODL GREENWICH, CT

Mortgage

Document Number	0000005578
Date	Sep 19, 2023
Instrument	5578

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank

Agreement

Type	Stand-Alone First Mortgage
Amount	Amount on Record

November 2020: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	GREENWICH CT
Recording Date	Nov 12, 2020
Property Address	9 RIVER RD UNIT 403, 403, COS COB, CT 06807-2722
Document Number	7774-145
Book / Page	7774 / 145
Instrument Date	Sep 28, 2020
Instrument	10211
Transaction Type	Transfer
Record Updated	May 21, 2021

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants

Mortgage

Document Number	10212
Date	Nov 12, 2020
Instrument	10212

Lender

Name	ENVOY MORTGAGE LTD
Type	Mortgage Company

Agreement

Type	Stand-Alone First Mortgage
Amount	Amount on Record

Tax Assessment & Valuation

The 2025 property tax bill for 9 River Rd, Unit 403 was $4,218.

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	$4,218.00	$341,250 Building $341,250	$238,875 Building $238,875
2024	$4,218.00 (+8.94%)
2023	$3,872.00 (+0.91%)	$332,780 (-) Building $332,780
2022	$3,837.00	$332,780 Building $332,780

Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.

Flood

FEMA maps place 9 River Rd, Unit 403 in Zone AE, a high-risk flood area; flood insurance is required for federally backed loans.

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

FEMA Flood Zone	Zone AE high risk
100-Year Floodplain	Yes 1% annual chance
Floodway	No
Base Flood Elevation	13.0 ft
Flood Insurance Requirement	Required federally backed loans

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

Wildfire

The area around 9 River Rd, Unit 403 has no burnable land within ember reach, so its wildfire risk is not rated.

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.

Nearby Properties on River Rd

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures