21 Winthrop Dr, Riverside, CT 06878 Property Records

Greenwich Town property record for 21 Winthrop Dr, Riverside, CT 06878

Property Summary

Property Type	Single Family Home
Details	6 bd · 6.5 ba · 5,066 sqft · built 2014
Lot Size	0.38 acres (16,553 sqft)
Owner	2 Company Names on Record
Tax Bill	$33,676 (2025)
Deeds & Mortgages	Jul 2021 Refinance May 2021 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`05-2216S`

Property Details

APN / Parcel Number

Primary APN	`05-2216S`
Alternative APNs	`GREE M:05 B:2216/S` `408/002`

Interior

Bedrooms	6 Beds
Full Baths	6.5 Baths
Half Baths	1 Half Bath
Total Rooms	15 Rooms
Stories	2 Stories
Building Area	5,066 sqft Living Area
Basement Area	2,380 sqft
Unfinished Basement	2,380 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 2014
Effective Year Built	Effective 2014
Architectural Style	Colonial
Exterior Material	Wood Siding
Construction Type	Frame
Roof Type	Gable
Roof Material	Wood Shingle
Lot Area	16,553 sqft (0.38 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	408/002
Street Address	21 WINTHROP DR
City	RIVERSIDE
State	CT
Zip	06878-1911
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R-12
Legal Block	2216/S
Jurisdiction	GREENWICH CT
Township / Civil Division	GREENWICH
Census Block Group	1
Census Block	1007
Census Tract	11100

Owner

Source: Greenwich Town records, as of June 25, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Company Names on Record
Mailing Address	21 WINTHROP DR, RIVERSIDE, CT 06878-1911
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Jul 7, 2021	Deed of Trust, Mortgage · Stand-Alone Refinance IAN C READ
May 4, 2021	Deed of Trust, Mortgage · Balloon Mortgage GUARANTEED RATE INC

Assessor's Deed Record

Deed Names	2 Names on Deed
Record Updated	Sep 20, 2026

July 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	GREENWICH CT
Property Address	21 WINTHROP DR, RIVERSIDE, CT 06878-1911
Transaction Type	Mortgage
Record Updated	Jan 17, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	007926-102
Date	Jul 7, 2021
Book Page	7926/102
Instrument	7822

Lender

Name	IAN C READ

Agreement

Type	Stand-Alone Refinance
Amount	Amount Recorded
Term	109 Months
Due	Aug 1, 2030

May 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	GREENWICH CT
Property Address	21 WINTHROP DR, RIVERSIDE, CT 06878-1911
Transaction Type	Mortgage
Record Updated	May 20, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	7881-112
Date	May 4, 2021
Book Page	7881/112
Instrument	4658

Lender

Name	GUARANTEED RATE INC
Type	Non-Lending Institution

Agreement

Type	Balloon Mortgage
Amount	Amount Recorded
Term	181 Months
Due	Jun 1, 2036

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
2025	$33,676.00	$2,724,820 (-) Land $1,031,030 Building $1,693,790	$1,907,374 Land $721,721 Building $1,185,653
2024	$33,676.00 (+6.21%)
2023	$31,706.00 (+0.92%)	$2,724,820 (-) Land $1,031,030 Building $1,693,790
2022	$31,417.00	$2,724,820 Land $1,031,030 Building $1,693,790

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 94% of the US · lower than 90% 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 265 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
AT&T Fixed Wireless	100 / 20

May also be available: Verizon.

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