48 Frontier Rd, Cos Cob, CT 06807 Property Records

Greenwich Town property record for 48 Frontier Rd, Cos Cob, CT 06807

Property Summary

Property Type	Single Family Home
Details	4 bd · 3.5 ba · 2,416 sqft · built 1962
Lot Size	1.06 acres (46,174 sqft)
Owner	2 Individual Names on File
Last Sale	$1,800,000 (Nov 2018)
Tax Bill	$11,295 (2026)
Deeds & Mortgages	Mar 2025 Refinance Mar 2021 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`08-3569`

Property Details

APN / Parcel Number

Primary APN	`08-3569`
Alternative APNs	`GREE M:08 B:3569` `357/025`

Interior

Bedrooms	4 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	10 Rooms
Stories	2 Stories
Building Area	2,416 sqft Living Area
Basement Area	1,095 sqft
Unfinished Basement	1,095 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1962
Effective Year Built	Effective 1965
Architectural Style	Colonial
Exterior Material	Aluminum/Vinyl
Construction Type	Frame
Roof Type	Gable
Roof Material	Asphalt
Lot Area	46,174 sqft (1.06 acres)
Garage Type	Attached
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Hot Water
Heating Fuel	Gas

Location & Zoning

Account Number	357/025
Street Address	48 FRONTIER RD
City	COS COB
State	CT
Zip	06807-1210
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RA-2
Legal Block	3569
Jurisdiction	GREENWICH CT
Township / Civil Division	GREENWICH
Census Block Group	1
Census Block	1006
Census Tract	10202

Owner

48 Frontier Rd is owned and occupied by two individuals who bought it in November 2018.

Source: Greenwich Town records, as of October 21, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	2 Individual Names on File
Mailing Address	48 FRONTIER RD, COS COB, CT 06807-1210
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Mar 20, 2025	Deed of Trust, Mortgage · Stand-Alone Refinance MANUFACTURERS & TRADERS TRUST CO
Mar 17, 2021	Deed of Trust, Mortgage · Balloon Mortgage WEBSTER BANK
Dec 31, 2020	Deed of Trust, Mortgage · ARM WEBSTER BANK
Nov 15, 2018	Warranty Deed, Transfer PNC BANK NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Nov 15, 2018 · Amount on File
Deed Sale	Nov 15, 2018 · Amount on File
Prior Sale	Mar 10, 2015 · Amount on File
Deed Document Number	20188619
Deed Book / Page	7450 / 66
Record Updated	Oct 29, 2026

March 2025: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	GREENWICH CT
Property Address	48 FRONTIER RD, COS COB, CT 06807-1210
Transaction Type	Mortgage
Record Updated	Mar 27, 2025

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0008416-82
Date	Mar 20, 2025
Book Page	8416/82
Instrument	1303

Lender

Name	MANUFACTURERS & TRADERS TRUST CO
Type	Bank

Agreement

Type	Stand-Alone Refinance
Amount	Amount on Record
Term	361 Months
Due	Apr 1, 2055

March 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	GREENWICH CT
Property Address	48 FRONTIER RD, COS COB, CT 06807-1210
Transaction Type	Mortgage
Record Updated	Apr 2, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	7847-40
Date	Mar 17, 2021
Book Page	7847/40
Instrument	2711

Lender

Name	WEBSTER BANK
Type	Bank

Agreement

Type	Balloon Mortgage
Amount	Amount on Record
Term	361 Months
Due	Apr 1, 2051

December 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	GREENWICH CT
Property Address	48 FRONTIER RD, COS COB, CT 06807-1210
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	7802-96
Date	Dec 31, 2020
Book Page	7802/96
Instrument	11946

Lender

Name	WEBSTER BANK
Type	Bank

Agreement

Type	ARM
Amount	Amount on Record
Term	361 Months
Due	Jan 1, 2051

Interest

Rate Type	Adjustable Rate
Rate	2.5%
Type Change Date	Feb 1, 2026
Index	LIBOR

November 2018: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	GREENWICH CT
Recording Date	Nov 15, 2018
Property Address	48 FRONTIER RD, COS COB, CT 06807-1210
Document Number	7450-66
Book / Page	7450 / 66
Instrument	8619
Transaction Type	Transfer
Record Updated	May 21, 2021

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$81.06
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	74500068
Date	Nov 15, 2018
Instrument	07450/0068

Lender

Name	PNC BANK NA
Type	Bank

Agreement

Amount	Amount on Record
Term	360 Months
Due	Nov 15, 2048

Interest

Max Rate At Change	20.1%

Tax Assessment & Valuation

The 2026 property tax bill for 48 Frontier Rd was $11,295, up 12.3% from the year before.

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	$11,295.00 (+12.33%)	$1,115,590 (+33.59%) Land $706,720 Building $408,870	$1,750,784 (+199.5%)
2025	$10,055.00	$835,100 Land $529,130 Building $305,970	$584,570 Land $370,391 Building $214,179
2024	$10,055.00 (+21.97%)
2023	$8,244.00 (+0.98%)	$723,800 (-) Land $529,130 Building $194,670
2022	$8,164.00	$723,800 Land $529,130 Building $194,670

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

Flood

FEMA maps place 48 Frontier Rd in Zone X, an area of minimal flood risk.

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

Wildfire risk around 48 Frontier Rd is low, with less than a 0.01% annual chance of 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	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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