18 Winthrop Downs, San Antonio, TX 78257 Property Records

Bexar County property record for 18 Winthrop Downs, San Antonio, TX 78257

Property Summary

Property Type	Single Family Home
Details	3 bd · 3.5 ba · 3,892 sqft · built 2008
Lot Size	0.225 acres (9,811 sqft)
Owner	2 Individual Names on Record
Last Sale	$521,300 (Jan 2008)
Tax Bill	$11,772 (2025)
Deeds & Mortgages	May 2020 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`16386-004-0530`

Property Details

APN / Parcel Number

Primary APN	`16386-004-0530`
Alternative APN	`615525`

Interior

Bedrooms	3 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	12 Rooms
Stories	2 Stories
Building Area	3,892 sqft Living Area
Gross Area	4,537 sqft
1st Floor Area	3,310 sqft
2nd Floor Area	582 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 2008
Effective Year Built	Effective 2008
Exterior Material	Stucco
Foundation Type	Slab (Mat/Raft)
Roof Material	Tile
Lot Area	9,811 sqft (0.225 acres)
Garage Type	Attached
Garage Area	645 sqft
Parking Spaces	2 Parking Spaces
Pool Area	480 sqft
Porch	Open Porch
Porch Area	587 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Street Address	18 WINTHROP DOWNS
City	SAN ANTONIO
State	TX
Zip	78257-1285
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	NCB 16386 BLK 4 LOT 53 DOMINION COTTAGE ESTATES UT-5A
Legal Subdivision	DOMINION COTTAGE ESTATES
Legal Block	4
Legal Lot Number	53
Jurisdiction	BEXAR TX
Township / Civil Division	SAN ANTONIO NORTH
Census Block Group	1
Census Block	1021
Census Tract	191807

Owner

Source: Bexar County records, as of May 26, 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	18 WINTHROP DOWNS, SAN ANTONIO, TX 78257-1285
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jan 11, 2008 · Amount on Record
Deed Sale	Jan 11, 2008 · Amount on Record
Prior Sale	Apr 11, 2007
Deed Document Number	20087227
Deed Book / Page	13302 / 1407
Prior Transfer Date	Apr 9, 2007
Prior Transfer Doc	0000287223
Record Updated	Oct 29, 2026

May 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BEXAR TX
Property Address	18 WINTHROP DOWNS, SAN ANTONIO, TX 78257-1285
Document Number	0000104522
Instrument Date	May 14, 2020
Transaction Type	Mortgage
Record Updated	Jun 1, 2020
Title Company	OTHER

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Husband and Wife
Address	18 WINTHROP DOWNS SAN ANTONIO TX 782571285, SAN ANTONIO, TX 78257-1285

Mortgage

Document Number	0000104522
Date	May 19, 2020
Instrument	104522

Lender

Name	QUICKEN LNS
Type	Funding / Finance Company
Address	DETROIT, MI 48226-1906

Agreement

Amount	Amount Recorded
Term	360 Months
Due	May 18, 2050

Tax Assessment & Valuation

Source: Bexar County assessment roll, as of May 26, 2026

Property Jurisdictions

Type	Name
State	Texas
County	Bexar County
Municipality	San Antonio City
Unified School District	Northside Independent School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$11,772.00 (-6.28%) Homeowner's exemption Senior Citizen's exemption	$1,041,720 (+2.49%) Land $183,470 Building $858,250	$1,041,720 (+2.49%) Land $183,470 Building $858,250
2024	$12,561.00 (-1.57%)
2023	$12,762.00 (-20.44%) Homeowner's exemption Senior Citizen's exemption	$1,016,390 Land $183,470 Building $832,920	$1,016,390 Land $183,470 Building $832,920
2022	$16,040.00

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 October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 30 policies
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	30 in force
Nearby Flood Claims	13 (1997–2004)
Claims Outside the SFHA	10 of 13
Most Recent Claim	Jun 2004 · rainfall accumulation
Claims by Event	Severe Storms And Flooding, Jul 2002 · 9 claims Flooding 10/18/98, Oct 1998 · 2 claims

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; 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 80% of the US · lower than 94% of Texas
Wildfire Likelihood	0.01% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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	SAN ANTONIO WATER SYSTEM serves 2,643,729 people · EPA ID TX0150018
Water Source	Purchased surface water from several systems
Last State Inspection	Aug 2023
Lead	2 ppb (2022–2024) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None 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. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 318 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Spectrum Cable	1,000 / 1,000
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20
AT&T DSL · Fiber in parts of the area	100 / 20