11 Frontier Rd, Cos Cob, CT 06807 Property Records

Greenwich Town property record for 11 Frontier Rd, Cos Cob, CT 06807 · Last verified July 2026

Property Summary

Property Type	Single Family Home
Details	6 bd · 4.5 ba · 4,800 sqft · built 1969
Lot Size	1.94 acres (84,506 sqft)
Owner	2 Individual Names on File
Last Sale	$2,651,000 (May 2022)
Tax Bill	$17,176 (2025)
Deeds & Mortgages	Jun 2022 Refinance May 2022 Sale
Flood Zone	Zone X (minimal risk)
APN	`08-3577`

Property Details

APN / Parcel Number

Primary APN	`08-3577`
Alternative APNs	`GREE M:08 B:3577` `358/021`

Interior

Bedrooms	6 Beds
Full Baths	4.5 Baths
Half Baths	1 Half Bath
Total Rooms	14 Rooms
Stories	2 Stories
Building Area	4,800 sqft Living Area
Basement Area	928 sqft
Unfinished Basement	928 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1969
Effective Year Built	Effective 1975
Architectural Style	Colonial
Exterior Material	Wood Siding
Construction Type	Frame
Roof Type	Gable
Roof Material	Asphalt
Lot Area	84,506 sqft (1.94 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	358/021
Street Address	11 FRONTIER RD
City	COS COB
State	CT
Zip	06807-1208
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Block	3577
Jurisdiction	GREENWICH CT
Township / Civil Division	GREENWICH
Census Block Group	1
Census Block	1005
Census Tract	10202

Owner

Source: Greenwich Town records · APN 08-3577

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 Record	2 Individual Names on File
Mailing Address	11 FRONTIER RD, COS COB, CT 06807-1208
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Jun 27, 2022	Deed of Trust, Mortgage · Stand-Alone Refinance JPMORGAN CHASE BANK NA
May 09, 2022	Warranty Deed, Transfer

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	May 09, 2022 · Amount on Record
Deed Sale	May 09, 2022 · Amount on Record
Prior Sale	Jul 03, 2000 · Amount on Record
Deed Document Number	20224202
Deed Book / Page	8104 / 316
Record Updated	Sep 20, 2026

June 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	GREENWICH CT
Property Address	11 FRONTIER RD, COS COB, CT 06807-1208
Transaction Type	Mortgage
Record Updated	Jul 14, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0008127-19
Date	Jun 27, 2022
Book Page	8127/19
Instrument	6104

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank

Agreement

Type	Stand-Alone Refinance
Amount	Amount Recorded
Term	361 Months
Due	Jul 01, 2052

May 2022: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	GREENWICH CT
Recording Date	May 09, 2022
Property Address	11 FRONTIER RD, COS COB, CT 06807-1208
Document Number	008104-316
Book / Page	8104 / 316
Instrument Date	May 09, 2022
Instrument	4202
Transaction Type	Transfer
Record Updated	May 26, 2022

Transaction

Amount	Amount Recorded
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	31 BLACK BIRCH LN, SCARSDALE, NY 10583-7454

Tax Assessment & Valuation

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

Property Jurisdictions

Type	Name
State	Connecticut
County Subdivision	Greenwich Town
Unified School District	Greenwich School District (PK - 12)

Tax Bill & Assessment History

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

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$17,176.00	$1,426,600 (+0.65%) Land $549,430 Building $877,170	$998,620 Land $384,601 Building $614,019
2024	$17,176.00 (+6.39%)
2023	$16,145.00 (+31.97%)	$1,417,430 (+30.69%) Land $549,430 Building $868,000
2022	$12,234.00	$1,084,580 Land $549,430 Building $535,150

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 Zone	Zone X
Special Flood Hazard Area	No
Flood Hazard	Minimal
500-Year Floodplain	No

Wildfire

Wildfire Risk	Low above 6% of the US · above 11% of Connecticut
Wildfire Likelihood	Less than 1 in 10,000 per year
Exposure	Direct 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 101 locations within about half a mile of this property

Provider	Technology	Download / Upload (Mbps)
Optimum Communications	Fiber	8,000 / 8,000
Verizon	Fiber	980 / 880
Optimum Communications	Cable	940 / 35

Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

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

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