15 Butler St, Cos Cob, CT 06807 Property Records

Greenwich Town property record for 15 Butler St, Cos Cob, CT 06807

Property Summary

Property Type	Single Family Home
Details	3 bd · 1.5 ba · 1,319 sqft · built 1947
Lot Size	0.35 acres (15,246 sqft)
Owner	Company Name on Record
Last Sale	$1,156,000 (Aug 2024)
Tax Bill	$8,721 (2026)
Deeds & Mortgages	Aug 2024 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`08-2153S`

Property Details

APN / Parcel Number

Primary APN	`08-2153S`
Alternative APNs	`GREE M:08 B:2153/S` `367/119`

Interior

Bedrooms	3 Beds
Full Baths	1.5 Baths
Half Baths	1 Half Bath
Total Rooms	6 Rooms
Stories	2 Stories
Building Area	1,319 sqft Living Area
Basement Area	754 sqft
Unfinished Basement	754 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1947
Effective Year Built	Effective 1960
Architectural Style	Cape Cod
Exterior Material	Aluminum/Vinyl
Construction Type	Frame
Roof Type	Gable
Roof Material	Asphalt
Lot Area	15,246 sqft (0.35 acres)

Utilities, Heating & Cooling

Heating System	Hot Water
Heating Fuel	Oil

Location & Zoning

Account Number	367/119
Street Address	15 BUTLER ST
City	COS COB
State	CT
Zip	06807-2611
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R-7
Legal Block	2153/S
Jurisdiction	GREENWICH CT
Township / Civil Division	GREENWICH
Census Block Group	2
Census Block	2004
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	Company Name on Record
Mailing Address	15 BUTLER ST, COS COB, CT 06807-2611
Owner Type	Company
Vesting	Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Aug 13, 2024 · Amount on Record
Deed Sale	Aug 13, 2024 · Amount on Record
Prior Sale	Dec 14, 2017 · Amount on Record
Deed Document Number	20244533
Deed Book / Page	8351 / 174
Record Updated	Oct 29, 2026

August 2024: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	GREENWICH CT
Recording Date	Aug 13, 2024
Property Address	15 BUTLER ST, COS COB, CT 06807-2611
Document Number	008351-174
Book / Page	8351 / 174
Instrument Date	Aug 9, 2024
Instrument	4533
Transaction Type	Transfer
Record Updated	Aug 29, 2024

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

Mortgage

Document Number	0000000004
Date	Aug 13, 2024
Instrument	4

Lender

Name	15 BUTLER CC LLC

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	$8,721.00 (+13.1%)	$831,810 (+33.32%) Land $701,680 Building $130,130	$1,517,455 (+247.45%)
2025	$7,711.00	$623,910 (-) Land $542,150 Building $81,760	$436,737 Land $379,505 Building $57,232
2024	$7,711.00 (+6.21%)
2023	$7,260.00 (+0.92%)	$623,910 (-) Land $542,150 Building $81,760
2022	$7,194.00	$623,910 Land $542,150 Building $81,760

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 97% of the US · lower than 95% 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 318 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
AT&T Fixed Wireless	100 / 20

May also be available: T-Mobile.

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