515 River Rd, Cos Cob, CT 06807 Property Records

Greenwich Town property record for 515 River Rd, Cos Cob, CT 06807 · Last verified July 2026

Property Summary

Property TypeSingle Family Home
Details5 bd · 6.5 ba · 4,865 sqft · built 2023
Lot Size0.33 acres (14,375 sqft)
OwnerCompany Name on File
Last Sale$760,000 (Nov 2017)
Tax Bill$16,176 (2025)
Deeds & MortgagesNov 2017 Foreclosure
Flood ZoneZone X (minimal risk)
APN12-2211S

Property Details

APN / Parcel Number

Primary APN12-2211S
Alternative APNs
  • GREE M:12 B:2211/S
  • 403/124

Interior

Bedrooms5 Beds
Full Baths6.5 Baths
Half Baths1 Half Bath
Total Rooms14 Rooms
Stories2 Stories
Building Area4,865 sqft Living Area
AtticAttic
Attic Area500 sqft
Basement Area2,250 sqft
Unfinished Basement2,250 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 2023
Effective Year BuiltEffective 2023
Architectural StyleColonial
Exterior MaterialWood Siding
Construction TypeFrame
Roof TypeGable
Roof MaterialAsphalt
Lot Area14,375 sqft (0.33 acres)
Garage TypeAttached
Parking Spaces1 Parking Space
Deck AreaDeck Area

Utilities, Heating & Cooling

Cooling SystemHVAC
Heating SystemForced Air with A/C
Heating FuelOil

Location & Zoning

Account Number403/124
Street Address515 RIVER RD
CityCOS COB
StateCT
Zip06807-1904
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal Block2211/S
JurisdictionGREENWICH CT
Township / Civil DivisionGREENWICH
Census Block Group3
Census Block3009
Census Tract10202

Owner

Source: Greenwich Town records · APN 12-2211S

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 RecordCompany Name on File
Mailing Address507 RIVER RD, COS COB, CT 06807-1904
Owner TypeCompany
VestingCompany

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleNov 30, 2017 · Amount on Record
Deed SaleNov 30, 2017 · Amount on Record
Deed Book / Page7324 / 323
Record UpdatedSep 20, 2026

November 2017: Committee Deed, Foreclosure

Document TypeCommittee Deed
JurisdictionGREENWICH CT
Recording DateNov 30, 2017
Property Address515 RIVER RD, COS COB, CT 06807-1904
Document Number7324-323
Book / Page007324 / 000323
Transaction TypeForeclosure
Record UpdatedJan 03, 2018

Transaction

AmountAmount Recorded
Tax$0.00

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCompany
Address515 RIVER RD COS COB CT 068071904, COS COB, CT 06807-1904

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateConnecticut
County SubdivisionGreenwich Town
Unified School DistrictGreenwich 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.

YearTax BillAssessed ValueAssessed Market Value
2025$16,176.00$1,308,860 (+155.61%) Land $512,050 Building $796,810$916,202 Land $358,435 Building $557,767
2024$16,176.00 (+171.5%)
2023$5,958.00 (-19.14%)$512,050 (-19.87%) Land $512,050
2022$7,368.00$639,030 Land $512,050 Building $126,980

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 ZoneZone X
Special Flood Hazard AreaNo
Flood HazardMinimal
500-Year FloodplainNo

Wildfire

Wildfire RiskLow
above 4% of the US · above 6% of Connecticut
Wildfire LikelihoodLess than 1 in 10,000 per year
ExposureDirect
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, availability as of December 31, 2025 · Published October 2026 · based on 319 locations within about half a mile of this property

ProviderTechnologyDownload / Upload (Mbps)
Optimum CommunicationsFiber8,000 / 8,000
FrontierFiber5,000 / 5,000
Optimum CommunicationsCable940 / 35

May also be available at this address: Verizon. Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G and 4G LTE (outdoors only)

Nearby Properties on River Rd

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