623 Lake Ave, Greenwich, CT 06830 Property Records

Greenwich Town property record for 623 Lake Ave, Greenwich, CT 06830

Property Summary

Property Type	Single Family Home
Details	5 bd · 5.5 ba · 4,977 sqft · built 1930
Lot Size	1.57 acres (68,389 sqft)
Owner	2 Individual Names on File
Last Sale	$3,800,000 (Aug 2024)
Tax Bill	$25,407 (2026)
Deeds & Mortgages	Aug 2024 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`11-2162`

Property Details

APN / Parcel Number

Primary APN	`11-2162`
Alternative APNs	`GREE M:11 B:2162` `203/029`

Interior

Bedrooms	5 Beds
Full Baths	5.5 Baths
Half Baths	1 Half Bath
Total Rooms	11 Rooms
Stories	2 Stories
Building Area	4,977 sqft Living Area
Attic	Attic
Attic Area	820 sqft
Basement Area	741 sqft
Unfinished Basement	741 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1930
Effective Year Built	Effective 1965
Architectural Style	Tudor
Exterior Material	Stone
Construction Type	Frame
Roof Type	Gable
Roof Material	Wood Shingle
Lot Area	68,389 sqft (1.57 acres)
Garage Type	Attached
Parking Spaces	1 Parking Space
Pool Type	In-Ground Pool

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Hot Water
Heating Fuel	Oil

Location & Zoning

Account Number	203/029
Street Address	623 LAKE AVE
City	GREENWICH
State	CT
Zip	06830-3833
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RA-2
Legal Block	2162
Jurisdiction	GREENWICH CT
Township / Civil Division	GREENWICH
Census Block Group	1
Census Block	1009
Census Tract	10201

Owner

623 Lake Ave is owned and occupied by two individuals who bought it in August 2024.

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

Owner of Record	2 Individual Names on File
Mailing Address	623 LAKE AVE, GREENWICH, CT 06830-3833
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Individual(s)

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

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Aug 9, 2024 · Amount on File
Deed Sale	Aug 9, 2024 · Amount on File
Prior Sale	May 1, 2002 · Amount on File
Deed Document Number	20244478
Deed Book / Page	8350 / 146
Transfer Doc	7013-126
Record Updated	Oct 29, 2026

August 2024: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	GREENWICH CT
Recording Date	Aug 9, 2024
Property Address	623 LAKE AVE, GREENWICH, CT 06830-3833
Document Number	008350-146
Book / Page	8350 / 146
Instrument Date	Aug 9, 2024
Instrument	4478
Transaction Type	Transfer
Record Updated	Aug 22, 2024

Transaction

Amount	Amount on Record
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	623 LAKE AVE, GREENWICH, CT 06830-3833

Mortgage

Document Number	0000004479
Date	Aug 9, 2024
Instrument	4479

Lender

Name	HSBC BANK USA
Type	Bank

Agreement

Type	Stand-Alone First Mortgage
Amount	Amount on Record

Interest

Rate Type	Adjustable Rate
Rate	5.91%
Type Change Date	Sep 1, 2034
Max Rate At Change	3%
Index	Other
Margin	3

Tax Assessment & Valuation

The 2026 property tax bill for 623 Lake Ave was $25,407, up 1.3% 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	$25,407.00 (+1.31%)	$2,509,360 (+20.47%) Land $1,471,540 Building $1,037,820	$5,086,861 (+248.88%)
2025	$25,078.00	$2,082,920 Land $1,126,020 Building $956,900	$1,458,044 Land $788,214 Building $669,830
2024	$25,078.00 (+6.15%)
2023	$23,624.00 (+0.97%)	$2,074,100 (-) Land $1,126,020 Building $948,080
2022	$23,396.00	$2,074,100 Land $1,126,020 Building $948,080

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 623 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 623 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 93% of the US · lower than 86% 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 70 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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