644 Lake Ave, Greenwich, CT 06830 Property Records

Greenwich Town property record for 644 Lake Ave, Greenwich, CT 06830

Property Summary

Property Type	Single Family Home
Details	5 bd · 4.5 ba · 6,187 sqft · built 1960
Lot Size	2.58 acres (112,385 sqft)
Owner	Company Name on File
Last Sale	$5,195,000 (Apr 2025)
Tax Bill	$34,892 (2026)
Deeds & Mortgages	Apr 2025 Sale Oct 2023 Sale + 2 more
Flood Zone	Zone X (minimal risk)
APN	`10-2973`

Property Details

APN / Parcel Number

Primary APN	`10-2973`
Alternative APNs	`GREE M:10 B:2973` `202/013`

Interior

Bedrooms	5 Beds
Full Baths	4.5 Baths
Half Baths	1 Half Bath
Total Rooms	10 Rooms
Stories	2 Stories
Building Area	6,187 sqft Living Area
Basement Area	1,127 sqft
Unfinished Basement	1,127 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1960
Effective Year Built	Effective 1980
Architectural Style	Colonial
Exterior Material	Brick
Construction Type	Frame
Roof Type	Mansard
Roof Material	Asphalt
Lot Area	112,385 sqft (2.58 acres)
Garage Type	Attached
Parking Spaces	1 Parking Space
Pool Type	Pool with Hot Tub/Spa

Utilities, Heating & Cooling

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

Location & Zoning

Account Number	202/013
Street Address	644 LAKE AVE
City	GREENWICH
State	CT
Zip	06830-3854
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RA-2
Legal Block	2973
Jurisdiction	GREENWICH CT
Township / Civil Division	GREENWICH
Census Block Group	1
Census Block	1001
Census Tract	10201

Owner

644 Lake Ave is owned by a company that bought it in April 2025.

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

Owner of Record	Company Name on File
Mailing Address	415 GREENWICH AVE, PHB, GREENWICH, CT 06830-6581
Owner Type	Company
Vesting	Company

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

Deeds, Mortgages & Sale History

Date	Document
Apr 15, 2025	Warranty Deed, Transfer
Oct 26, 2023	Warranty Deed, Transfer NONE AVILABALE
Apr 17, 2017	Deed of Trust, Mortgage JPMORGAN CHASE BANK NA
Feb 2, 2018	Deed of Trust, Mortgage JPMORGAN CHASE BANK NA

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Apr 15, 2025 · Amount on File
Deed Sale	Apr 15, 2025 · Amount on File
Prior Sale	Oct 26, 2023 · Amount on File
Deed Document Number	20251801
Deed Book / Page	8423 / 153
Record Updated	Oct 29, 2026

April 2025: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	GREENWICH CT
Recording Date	Apr 15, 2025
Property Address	644 LAKE AVE, GREENWICH, CT 06830-3854
Document Number	008423-153
Book / Page	8423 / 153
Instrument Date	Apr 9, 2025
Instrument	1801
Transaction Type	Transfer
Record Updated	Nov 19, 2025

Transaction

Amount	Amount 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	415 GREENWICH AVE # PHB, PHB, GREENWICH, CT 06830-6581

October 2023: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	GREENWICH CT
Recording Date	Oct 26, 2023
Property Address	644 LAKE AVE, GREENWICH, CT 06830-3854
Document Number	008271-246
Book / Page	8271 / 246
Instrument Date	Oct 23, 2023
Instrument	6575
Transaction Type	Transfer
Record Updated	Jul 22, 2025
Title Company	NONE AVILABALE

Transaction

Amount	Amount 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	644 LAKE AVE, GREENWICH, CT 06830-3854

April 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	GREENWICH CT
Property Address	644 LAKE AVE, GREENWICH, CT 06830-3854
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	7230-146
Date	Apr 17, 2017
Book Page	7230/146

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank

Agreement

Amount	Amount on Record
Term	360 Months
Due	Apr 1, 2047

February 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	GREENWICH CT
Property Address	644 LAKE AVE, GREENWICH, CT 06830-3854
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	7347-302
Date	Feb 2, 2018
Book Page	7347/302

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank

Agreement

Amount	Amount on Record
Term	360 Months
Due	Feb 1, 2048

Tax Assessment & Valuation

The 2026 property tax bill for 644 Lake Ave was $34,892, up 38% 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	$34,892.00 (+38%)	$3,446,170 (+64.1%) Land $1,796,760 Building $1,649,410	$5,232,751 (+255.97%)
2025	$25,284.00	$2,100,000 Land $1,438,220 Building $661,780	$1,470,000 Land $1,006,754 Building $463,246
2024	$25,284.00 (+5.71%)
2023	$23,919.00 (-18.16%)	$2,100,000 (-18.95%) Land $1,438,220 Building $661,780
2022	$29,227.00	$2,591,050 Land $1,438,220 Building $1,152,830

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 644 Lake Ave in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.

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

Wildfire risk around 644 Lake Ave 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 95% of the US · lower than 92% 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 46 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

5G (outdoors only) and 4G LTE

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