173 Valley Rd, Cos Cob, CT 06807 Property Records

Greenwich Town property record for 173 Valley Rd, Cos Cob, CT 06807

Property Summary

Property Type	Single Family Home
Details	6 bd · 6.5 ba · 4,479 sqft · built 2015
Lot Size	0.59 acres (25,700 sqft)
Owner	2 Company Names on Record
Last Sale	$3,200,000 (Aug 2020)
Tax Bill	$26,123 (2025)
Deeds & Mortgages	Dec 2025 Transfer Aug 2020 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`08A-2010S`

Property Details

APN / Parcel Number

Primary APN	`08A-2010S`
Alternative APNs	`GREE M:08A B:2010/S` `384`

Interior

Bedrooms	6 Beds
Full Baths	6.5 Baths
Half Baths	1 Half Bath
Total Rooms	12 Rooms
Stories	2 Stories
Building Area	4,479 sqft Living Area
Attic	Attic
Attic Area	456 sqft
Basement Area	2,713 sqft
Unfinished Basement	2,713 sqft

Exterior

Year Built	Built 2015
Effective Year Built	Effective 2015
Architectural Style	Colonial
Exterior Material	Wood Siding
Construction Type	Frame
Roof Type	Gable
Roof Material	Wood Shingle
Lot Area	25,700 sqft (0.59 acres)
Garage Type	Attached
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Forced Air with A/C

Location & Zoning

Account Number	384
Street Address	173 VALLEY RD
City	COS COB
State	CT
Zip	06807-2228
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R-12
Legal Block	2010/S
Jurisdiction	GREENWICH CT
Township / Civil Division	GREENWICH
Census Block Group	2
Census Block	2002
Census Tract	10202

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 Company Names on Record
Mailing Address	173 VALLEY RD, COS COB, CT 06807-2228
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Revocable Trust

Deeds, Mortgages & Sale History

Date	Document
Dec 17, 2025	Quit Claim Deed, Transfer Quitclaim
Aug 17, 2020	Warranty Deed, Transfer · Stand-Alone First Mortgage JPMORGAN CHASE BANK NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Aug 17, 2020 · Amount on Record
Deed Sale	Aug 17, 2020 · Amount on Record
Deed Document Number	20206623
Deed Book / Page	7718 / 287
Last Transfer Date	Dec 2, 2025
Transfer Doc	0008513-67
Record Updated	Sep 20, 2026

December 2025: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	GREENWICH CT
Recording Date	Dec 17, 2025
Property Address	173 VALLEY RD, COS COB, CT 06807-2228
Document Number	0008513-67
Book / Page	8513 / 67
Instrument Date	Dec 2, 2025
Instrument	7450
Transaction Type	Transfer
Record Updated	Dec 31, 2025

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	173 VALLEY RD, COS COB, CT 06807-2228

August 2020: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	GREENWICH CT
Recording Date	Aug 17, 2020
Property Address	173 VALLEY RD, COS COB, CT 06807-2228
Document Number	007718-287
Book / Page	7718 / 287
Instrument Date	Aug 13, 2020
Instrument	6623
Transaction Type	Transfer
Record Updated	May 11, 2022

Transaction

Amount	Amount Recorded
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
Address	173 VALLEY RD, COS COB, CT 06807-2228

Mortgage

Document Number	0000006624
Date	Aug 17, 2020
Instrument	6624

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank

Agreement

Type	Stand-Alone First Mortgage
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Rate	2.5%
Type Change Date	Sep 1, 2027
Max Rate At Change	12.5%
Index	LIBOR

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	$26,123.00 (+0.01%)	$2,113,650 (-) Land $674,170 Building $1,439,480	$1,479,555 Land $471,919 Building $1,007,636
2024	$26,120.00 (+6.2%)
2023	$24,594.00 (+0.92%)	$2,113,650 (-) Land $674,170 Building $1,439,480
2022	$24,370.00	$2,113,650 Land $674,170 Building $1,439,480

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	Low lower than 96% of the US · lower than 94% of Connecticut
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond 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 236 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Optimum Fiber · Cable	8,000 / 8,000
Verizon Fiber	980 / 880

May also be available: Frontier.

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