9 Mayo Ave, Greenwich, CT 06830 Property Records

Greenwich Town property record for 9 Mayo Ave, Greenwich, CT 06830

Property Summary

Property Type	Single Family Home
Details	5 bd · 5.5 ba · 4,785 sqft · built 2011
Lot Size	0.71 acres (30,928 sqft)
Owner	2 Individual Names on Record
Last Sale	$2,755,000 (Apr 2007)
Tax Bill	$55,779 (2026)
Deeds & Mortgages	May 2020 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`02-1490S`

Property Details

APN / Parcel Number

Primary APN	`02-1490S`
Alternative APNs	`GREE M:02 B:1490/S` `252/039`

Interior

Bedrooms	5 Beds
Full Baths	5.5 Baths
Half Baths	1 Half Bath
Total Rooms	13 Rooms
Stories	2 Stories
Building Area	4,785 sqft Living Area
Basement Area	2,444 sqft
Unfinished Basement	2,444 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 2011
Effective Year Built	Effective 2011
Architectural Style	Colonial
Exterior Material	Wood Siding
Construction Type	Frame
Roof Type	Gable
Roof Material	Wood Shingle
Lot Area	30,928 sqft (0.71 acres)
Garage Type	Basement
Parking Spaces	2 Parking Spaces
Pool Type	In-Ground Pool
Deck Area	Deck Area

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Geothermal
Heating Fuel	Gas

Location & Zoning

Account Number	252/039
Street Address	9 MAYO AVE
City	GREENWICH
State	CT
Zip	06830-7021
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RA-1
Legal Block	1490/S
Jurisdiction	GREENWICH CT
Township / Civil Division	GREENWICH
Census Block Group	2
Census Block	2006
Census Tract	11200

Owner

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

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

Owner of Record	2 Individual Names on Record
Mailing Address	9 MAYO AVE, GREENWICH, CT 06830-7021
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Apr 2, 2007 · Amount on Record
Deed Sale	Apr 2, 2007 · Amount on Record
Prior Sale	Jun 9, 2005 · Amount on Record
Deed Book / Page	5380 / 140
Record Updated	Oct 29, 2026

May 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	GREENWICH CT
Property Address	9 MAYO AVE, GREENWICH, CT 06830-7021
Transaction Type	Mortgage
Record Updated	Mar 1, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	7658-161
Date	May 4, 2020
Book Page	7658/161
Instrument	3224

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank

Agreement

Type	ARM
Amount	Amount Recorded
Term	361 Months
Due	Jun 1, 2050

Interest

Rate Type	Adjustable Rate
Type Change Date	May 1, 2030

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	$55,779.00 (+4.08%)	$5,320,350 (+22.69%) Land $2,978,920 Building $2,341,430	$7,881,484 (+159.64%)
2025	$53,595.00	$4,336,500 (-) Land $2,332,750 Building $2,003,750	$3,035,550 Land $1,632,925 Building $1,402,625
2024	$53,595.00 (+6.21%)
2023	$50,460.00 (+0.92%)	$4,336,500 (-) Land $2,332,750 Building $2,003,750
2022	$50,000.00	$4,336,500 Land $2,332,750 Building $2,003,750

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
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 98% of the US · lower than 97.2% 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 120 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Optimum Cable · Fiber in parts of the area	940 / 35
T-Mobile Fixed Wireless	100 / 20

May also be available: Verizon.

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