40 Frontier Rd, Cos Cob, CT 06807 Property Records

Greenwich Town property record for 40 Frontier Rd, Cos Cob, CT 06807

Property Summary

Property Type	Single Family Home
Details	4 bd · 4 ba · 3,409 sqft · built 1961
Lot Size	1.13 acres (49,223 sqft)
Owner	2 Individual Names on Record
Last Sale	$1,975,000 (Sep 2022)
Tax Bill	$16,171 (2026)
Deeds & Mortgages	Nov 2022 Mortgage Sep 2022 Sale
Flood Zone	Zone X (minimal risk)
APN	`08-3567`

Property Details

APN / Parcel Number

Primary APN	`08-3567`
Alternative APNs	`GREE M:08 B:3567` `357/023`

Interior

Bedrooms	4 Beds
Full Baths	4 Baths
Half Baths	2 Half Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	3,409 sqft Living Area
Basement Area	2,170 sqft
Unfinished Basement	2,170 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1961
Effective Year Built	Effective 1970
Architectural Style	Split Level
Exterior Material	Wood Siding
Construction Type	Frame
Roof Type	Gable
Roof Material	Asphalt
Lot Area	49,223 sqft (1.13 acres)
Garage Type	Basement
Parking Spaces	2 Parking Spaces
Deck Area	Deck Area

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Hot Water
Heating Fuel	Gas

Location & Zoning

Account Number	357/023
Street Address	40 FRONTIER RD
City	COS COB
State	CT
Zip	06807-1207
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RA-2
Legal Block	3567
Jurisdiction	GREENWICH CT
Township / Civil Division	GREENWICH
Census Block Group	1
Census Block	1006
Census Tract	10202

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	40 FRONTIER RD, COS COB, CT 06807-1207
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Nov 4, 2022	Deed of Trust, Mortgage · ARM GOLDMAN SACHS BANK USA
Sep 30, 2022	Warranty Deed, Transfer

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Sep 30, 2022 · Amount on Record
Deed Sale	Sep 30, 2022 · Amount on Record
Prior Sale	Jun 23, 1999 · Amount on Record
Deed Document Number	20228615
Deed Book / Page	8161 / 144
Record Updated	Oct 29, 2026

November 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	GREENWICH CT
Property Address	40 FRONTIER RD, COS COB, CT 06807-1207
Transaction Type	Mortgage
Record Updated	Nov 17, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0008170-77
Date	Nov 4, 2022
Book Page	8170/77
Instrument	9281

Lender

Name	GOLDMAN SACHS BANK USA
Type	Bank

Agreement

Type	ARM
Amount	Amount Recorded
Term	361 Months
Due	Dec 1, 2052

Interest

Rate Type	Adjustable Rate
Rate	4.65%
Type Change Date	Dec 1, 2032
Index	Other
Margin	3

September 2022: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	GREENWICH CT
Recording Date	Sep 30, 2022
Property Address	40 FRONTIER RD, COS COB, CT 06807-1207
Document Number	008161-144
Book / Page	8161 / 144
Instrument Date	Sep 28, 2022
Instrument	8615
Transaction Type	Transfer
Record Updated	Oct 13, 2022

Transaction

Amount	Amount Recorded
Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Notice of Foreclosure Sale Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants

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	$16,171.00 (+26.09%)	$1,597,120 (+49.94%) Land $713,720 Building $883,400	$2,328,451 (+212.28%)
2025	$12,825.00	$1,065,190 (+11.58%) Land $535,640 Building $529,550	$745,633 Land $374,948 Building $370,685
2024	$12,825.00 (+17.94%)
2023	$10,874.00 (+0.98%)	$954,660 (-) Land $535,640 Building $419,020
2022	$10,769.00	$954,660 Land $535,640 Building $419,020

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

Flood

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

FEMA Flood Zone	Zone X minimal risk
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 94% of the US · lower than 89% of Connecticut
Wildfire Likelihood	Under 0.01% annual chance
Exposure	Direct burnable vegetation

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Internet Providers

Source: FCC Broadband Data Collection, based on 101 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

Cell Coverage

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

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