11 Jackson St, Cos Cob, CT 06807 Property Records

Greenwich Town property record for 11 Jackson St, Cos Cob, CT 06807

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.5 ba · 1,905 sqft · built 1928
Lot Size	0.17 acres (7,405 sqft)
Owner	Individual Name on Record
Last Sale	$1,361,000 (Jun 2023)
Tax Bill	$8,227 (2026)
Deeds & Mortgages	Jan 2024 Refinance Jul 2023 Sale + 1 more
Flood Zone	Zone X (minimal risk)
APN	`08-1840S`

Property Details

APN / Parcel Number

Primary APN	`08-1840S`
Alternative APNs	`GREE M:08 B:1840/S` `341/009`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	1,905 sqft Living Area
Attic	Attic
Attic Area	309 sqft
Basement Area	888 sqft
Unfinished Basement	888 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1928
Effective Year Built	Effective 1960
Architectural Style	Colonial
Exterior Material	Stone
Construction Type	Frame
Roof Type	Gable
Roof Material	Asphalt
Lot Area	7,405 sqft (0.17 acres)
Garage Type	Basement
Parking Spaces	1 Parking Space
Deck Area	Deck Area

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Hot Water
Heating Fuel	Gas

Location & Zoning

Account Number	341/009
Street Address	11 JACKSON ST
City	COS COB
State	CT
Zip	06807-2340
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R-7
Legal Block	1840/S
Jurisdiction	GREENWICH CT
Township / Civil Division	GREENWICH
Census Block Group	3
Census Block	3007
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	Individual Name on Record
Mailing Address	11 JACKSON ST, COS COB, CT 06807-2340
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Jan 8, 2024	Deed of Trust, Mortgage · Stand-Alone Refinance BANK OF AMERICA NA
Jul 31, 2023	Warranty Deed, Transfer
Jun 7, 2023	Executor's Deed, Transfer · Stand-Alone First Mortgage WELLS FARGO BANK NA

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jun 7, 2023 · Amount on Record
Deed Sale	Jun 7, 2023 · Amount on Record
Deed Document Number	20233367
Deed Book / Page	8227 / 43
Last Transfer Date	Jul 26, 2023
Transfer Doc	008244-241
Record Updated	Oct 29, 2026

January 2024: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	GREENWICH CT
Property Address	11 JACKSON ST, COS COB, CT 06807-2340
Transaction Type	Mortgage
Record Updated	Mar 26, 2024

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	008290-169
Date	Jan 8, 2024
Book Page	8290/169
Instrument	133

Lender

Name	BANK OF AMERICA NA
Type	Bank

Agreement

Type	Stand-Alone Refinance
Amount	Amount Recorded
Term	349 Months
Due	Feb 1, 2053

July 2023: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	GREENWICH CT
Recording Date	Jul 31, 2023
Property Address	11 JACKSON ST, COS COB, CT 06807-2340
Document Number	008244-241
Book / Page	8244 / 241
Instrument Date	Jul 26, 2023
Instrument	4512
Transaction Type	Transfer
Record Updated	Aug 17, 2023

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	11 JACKSON ST, COS COB, CT 06807-2340

June 2023: Executor's Deed, Transfer

Document Type	Executor's Deed
Jurisdiction	GREENWICH CT
Recording Date	Jun 7, 2023
Property Address	11 JACKSON ST, COS COB, CT 06807-2340
Document Number	0008227-43
Book / Page	8227 / 43
Instrument Date	Jun 7, 2023
Instrument	3367
Transaction Type	Transfer
Record Updated	Jun 22, 2023

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
Address	325 BAYBERRIE DR, STAMFORD, CT 06902-2004

Mortgage

Document Number	0000003369
Date	Jun 7, 2023
Instrument	3369

Lender

Name	WELLS FARGO BANK NA
Type	Bank

Agreement

Type	Stand-Alone First Mortgage
Amount	Amount Recorded

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	$8,227.00 (+5.65%)	$784,700 (+24.54%) Land $552,440 Building $232,260	$1,768,679 (+301.02%)
2025	$7,787.00	$630,070 (+12.29%) Land $441,980 Building $188,090	$441,049 Land $309,386 Building $131,663
2024	$7,787.00 (+19.27%)
2023	$6,529.00 (+0.91%)	$561,120 (-) Land $441,980 Building $119,140
2022	$6,470.00	$561,120 Land $441,980 Building $119,140

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 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.

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 328 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
Starlink Satellite	280 / 30

May also be available: Frontier.

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