53 Mason St, Greenwich, CT 06830 Property Records

Greenwich Town property record for 53 Mason St, Greenwich, CT 06830

Property Summary

Property Type	Mixed Use Commercial Office / Residential
Details	5,954 sqft · built 1910
Lot Size	0.22 acres (9,583 sqft)
Owner	2 Individual Names on Record
Last Sale	$3,000,000 (May 2017)
Tax Bill	$15,622 (2026)
Deeds & Mortgages	May 2017 Transfer May 2017 Sale
Flood Zone	Zone X (minimal risk)
APN	`01-1647S`

Property Details

APN / Parcel Number

Primary APN	`01-1647S`
Alternative APNs	`GREE M:01 B:1647/S` `284/105`

Interior

Total Rooms	19 Rooms
Units	21 Units
Stories	3 Stories
Building Area	5,954 sqft Total Area
Basement Area	2,381 sqft
Unfinished Basement	2,381 sqft

Exterior

Year Built	Built 1910
Effective Year Built	Effective 1910
Architectural Style	Condo/Apartment
Construction Type	Frame
Roof Type	Gable
Roof Material	Shingle
Lot Area	9,583 sqft (0.22 acres)
Garage Type	Detached
Parking Spaces	1 Parking Space
Deck Area	Deck Area

Utilities, Heating & Cooling

Heating System	Hot Water

Location & Zoning

Account Number	284/105
Street Address	53 MASON ST
City	GREENWICH
State	CT
Zip	06830-5434
Property Category	Commercial
Property Type	Commercial > Office > Mixed Use Commercial Office / Residential
Local Zoning Code	CGB
Legal Block	1647/S
Jurisdiction	GREENWICH CT
Township / Civil Division	GREENWICH
Census Block Group	2
Census Block	2007
Census Tract	10600

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	2 Individual Names on Record
Mailing Address	53 MASON ST, GREENWICH, CT 06830-5434
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
May 26, 2017	Quit Claim Deed, Transfer Quitclaim
May 26, 2017	Quit Claim Deed, Transfer Quitclaim

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 26, 2017 · Amount on Record
Deed Sale	May 26, 2017 · Amount on Record
Deed Book / Page	7248 / 85
Record Updated	Oct 29, 2026

May 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	GREENWICH CT
Recording Date	May 26, 2017
Property Address	53 MASON ST, GREENWICH, CT 06830-5434
Document Number	7248-82
Book / Page	007248 / 000082
Transaction Type	Transfer
Record Updated	Jun 20, 2017

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	53 MASON ST GREENWICH CT 068305434, GREENWICH, CT 06830-5434

May 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	GREENWICH CT
Recording Date	May 26, 2017
Property Address	53 MASON ST, GREENWICH, CT 06830-5434
Document Number	7248-85
Book / Page	007248 / 000085
Transaction Type	Transfer
Record Updated	Jun 20, 2017

Transaction

Amount	Amount Recorded
Tax	$0.00
Additional	Quitclaim

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	53 MASON ST GREENWICH CT 068305434, GREENWICH, CT 06830-5434

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	$15,622.00 (-6.57%)	$1,490,090 (+10.14%) Land $1,018,010 Building $472,080
2025	$16,721.00	$1,352,960 (-) Land $964,530 Building $388,430	$947,072 Land $675,171 Building $271,901
2024	$16,721.00 (+6.21%)
2023	$15,743.00 (+0.92%)	$1,352,960 (-) Land $964,530 Building $388,430
2022	$15,600.00	$1,352,960 Land $964,530 Building $388,430

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 99.1% of the US · lower than 99% 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 501 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
T-Mobile Fixed Wireless	100 / 20

May also be available: AT&T, Frontier.

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