306 Valley Rd, Cos Cob, CT 06807 Property Records

Greenwich Town property record for 306 Valley Rd, Cos Cob, CT 06807

Property Summary

Property Type	Single Family Home
Details	2 bd · 2.5 ba · 1,795 sqft · built 2019
Lot Size	0.26 acres (11,326 sqft)
Owner	Individual Name on Record
Tax Bill	$10,438 (2026)
Deeds & Mortgages	Jan 2020 Refinance Jan 2020 Refinance + 1 more
Flood Zone	Zone X (minimal risk)
APN	`08-1230S`

Property Details

APN / Parcel Number

Primary APN	`08-1230S`
Alternative APNs	`GREE M:08 B:1230/S` `403/116`

Interior

Bedrooms	2 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	5 Rooms
Stories	2 Stories
Building Area	1,795 sqft Living Area
Attic	Attic
Attic Area	221 sqft
Basement Area	896 sqft
Unfinished Basement	896 sqft

Exterior

Year Built	Built 2019
Effective Year Built	Effective 2019
Architectural Style	Cape Cod
Exterior Material	Wood Siding
Construction Type	Frame
Roof Type	Gable
Roof Material	Asphalt
Lot Area	11,326 sqft (0.26 acres)
Garage Type	Attached
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Forced Air with A/C
Heating Fuel	Oil

Location & Zoning

Account Number	403/116
Street Address	306 VALLEY RD
City	COS COB
State	CT
Zip	06807-1813
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R-12
Legal Block	1230/S
Jurisdiction	GREENWICH CT
Township / Civil Division	GREENWICH
Census Block Group	3
Census Block	3007
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	Individual Name on Record
Mailing Address	306 VALLEY RD, COS COB, CT 06807-1813
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Jan 23, 2020	Deed of Trust, Mortgage · Stand-Alone Refinance BAYCOAST MORTGAGE COMPANY
Jan 9, 2020	Deed of Trust, Mortgage · Stand-Alone Refinance SAVINGS BANK OF DANBURY
May 3, 2019	Deed of Trust, Mortgage · Conventional Mortgage SAVINGS BK/DANBURY

Assessor's Deed Record

Deed Names	Name on Deed
Record Updated	Oct 29, 2026

January 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	GREENWICH CT
Property Address	306 VALLEY RD, COS COB, CT 06807-1813
Transaction Type	Mortgage
Record Updated	Feb 7, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	7616-312
Date	Jan 23, 2020
Book Page	7616/312
Instrument	580

Lender

Name	BAYCOAST MORTGAGE COMPANY

Agreement

Type	Stand-Alone Refinance
Amount	Amount Recorded
Term	361 Months
Due	Feb 1, 2050

January 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	GREENWICH CT
Property Address	306 VALLEY RD, COS COB, CT 06807-1813
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	7611-122
Date	Jan 9, 2020
Book Page	7611/122
Instrument	191

Lender

Name	SAVINGS BANK OF DANBURY
Type	Bank

Agreement

Type	Stand-Alone Refinance
Amount	Amount Recorded
Term	361 Months
Due	Feb 1, 2050

May 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	GREENWICH CT
Property Address	306 VALLEY RD, COS COB, CT 06807-1813
Document Number	7504-107
Instrument Date	May 3, 2019
Transaction Type	Mortgage
Record Updated	May 28, 2019
Title Company	UNKNOWN

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	306 VALLEY RD COS COB CT 068071813, COS COB, CT 06807-1813

Mortgage

Document Number	7504-107
Date	May 9, 2019
Book Page	007504/000107
Instrument	2885

Lender

Name	SAVINGS BK/DANBURY
Type	Federal Savings Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	May 8, 2049

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	$10,438.00 (+17.28%)	$995,610 (+38.26%) Land $609,210 Building $386,400	$1,644,666 (+226.28%)
2025	$8,900.00	$720,090 (-) Land $458,220 Building $261,870	$504,063 Land $320,754 Building $183,309
2024	$8,900.00 (+6.22%)
2023	$8,379.00 (+0.92%)	$720,090 (-) Land $458,220 Building $261,870
2022	$8,303.00	$720,090 Land $458,220 Building $261,870

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 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 319 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Optimum Fiber · Cable	8,000 / 8,000
Frontier Fiber	5,000 / 5,000

May also be available: Verizon.

Cell Coverage

5G (outdoors only) and 4G LTE

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