10 Relay Pl, Cos Cob, CT 06807 Property Records

Greenwich Town property record for 10 Relay Pl, Cos Cob, CT 06807

Property Summary

Property Type	Single Family Home
Details	4 bd · 1 ba · 2,527 sqft · built 1839
Lot Size	0.17 acres (7,405 sqft)
Owner	2 Individual Names on Record
Last Sale	$505,000 (Jul 2001)
Tax Bill	$7,569 (2026)
Deeds & Mortgages	Feb 2021 Mortgage Oct 2018 Line of Credit + 1 more
Flood Zone	Zone X (moderate risk)
APN	`08-1851S`

Property Details

APN / Parcel Number

Primary APN	`08-1851S`
Alternative APNs	`GREE M:08 B:1851/S` `366/219`

Interior

Bedrooms	4 Beds
Full Baths	1 Bath
Total Rooms	8 Rooms
Stories	3 Stories
Building Area	2,527 sqft Living Area
Basement Area	963 sqft
Unfinished Basement	963 sqft

Exterior

Year Built	Built 1839
Effective Year Built	Effective 1950
Architectural Style	Colonial
Exterior Material	Stone
Construction Type	Frame
Roof Material	Asphalt
Lot Area	7,405 sqft (0.17 acres)
Garage Type	Carport
Carport	Carport
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Heating System	Hot Water
Heating Fuel	Gas

Location & Zoning

Account Number	366/219
Street Address	10 RELAY PL
City	COS COB
State	CT
Zip	06807-2715
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R-7
Legal Block	1851/S
Jurisdiction	GREENWICH CT
Township / Civil Division	GREENWICH
Census Block Group	1
Census Block	1005
Census Tract	10800

Owner

Source: Greenwich Town records, as of October 21, 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	10 RELAY PL, COS COB, CT 06807-2715
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Feb 17, 2021	Deed of Trust, Mortgage · Balloon Mortgage ENVISION BANK
Oct 22, 2018	Deed of Trust, Mortgage · Line of Credit PEOPLES UNITED BANK
Dec 31, 2020	Warranty Deed, Transfer · Conventional Mortgage LUXURY MTG CORP

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 6, 2001 · Amount on Record
Deed Sale	Jul 6, 2001 · Amount on Record
Deed Book / Page	3614 / 42
Record Updated	Oct 29, 2026

February 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	GREENWICH CT
Property Address	10 RELAY PL, COS COB, CT 06807-2715
Transaction Type	Mortgage
Record Updated	Mar 4, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	7828-273
Date	Feb 17, 2021
Book Page	7828/273
Instrument	1632

Lender

Name	ENVISION BANK

Agreement

Type	Balloon Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Mar 1, 2051

October 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	GREENWICH CT
Property Address	10 RELAY PL, COS COB, CT 06807-2715
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	7441-189
Date	Oct 22, 2018
Book Page	7441/189
Instrument	8065

Lender

Name	PEOPLES UNITED BANK
Type	Bank

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	360 Months
Due	Oct 1, 2048

December 2020: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	GREENWICH CT
Recording Date	Dec 31, 2020
Property Address	10 RELAY PL, COS COB, CT 06807-2715
Document Number	7801-290
Book / Page	007801 / 000290
Instrument Date	Dec 19, 2020
Instrument	11913
Transaction Type	Transfer
Record Updated	Jan 19, 2021
Title Company	UNKNOWN

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$899.00
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	10A RELAY PL COS COB CT 068072715, COS COB, CT 06807-2715

Mortgage

Document Number	7801-293
Date	Dec 31, 2020
Book Page	007801/000293
Instrument	11914

Lender

Name	LUXURY MTG CORP

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Dec 30, 2050

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
2026	$7,569.00 (-0.17%)	$721,980 (+17.69%) Land $529,410 Building $192,570	$1,556,512 (+262.45%)
2025		$613,480 (-) Land $423,570 Building $189,910	$429,436 Land $296,499 Building $132,937
2024	$7,582.00 (+6.22%)
2023	$7,138.00 (+0.92%)	$613,480 (-) Land $423,570 Building $189,910
2022	$7,073.00	$613,480 Land $423,570 Building $189,910

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 moderate risk
500-Year Floodplain	Yes 0.2% annual chance
Nearest Special Flood Hazard Area	Zone AE, within 100 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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