428 Big Brown Dr, Austin, TX 78737 Property Records

Hays County property record for 428 Big Brown Dr, Austin, TX 78737

Property Summary

Property Type	Single Family Home
Details	4,363 sqft · built 2019
Lot Size	2.35 acres (102,497 sqft)
Owner	Individual Name on File
Tax Bill	$23,683 (2024)
Deeds & Mortgages	May 2022 Mortgage Mar 2020 Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`R145535`

Property Details

APN / Parcel Number

Primary APN	`R145535`
Alternative APN	`11-4549-0000-06000-4`

Interior

Stories	2 Stories
Building Area	4,363 sqft Living Area
Gross Area	5,180 sqft
2nd Floor Area	1,793 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 2019
Exterior Material	Stucco
Foundation Type	Slab (Mat/Raft)
Roof Type	Hip
Roof Material	Composition Shingle
Lot Area	102,497 sqft (2.35 acres)
Garage Type	Mixed
Garage Area	817 sqft
Parking Spaces	3 Parking Spaces

Exterior Amenities

Pool Type	Spa / Hot Tub (No Pool)
Patio Area	408 sqft
Balcony	Balcony
Balcony Area	408 sqft
Shed	1 Shed
Shed Area	320 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	428 BIG BROWN DR
City	AUSTIN
State	TX
Zip	78737-2543
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	KEY RANCH SEC 2, LOT 60, ACRES 2.353 TAX CODES:RSP,SDS
Legal Subdivision	KEY RANCH SEC 2
Legal Lot Number	60
Jurisdiction	HAYS TX
Township / Civil Division	DRIPPING SPRINGS-WIMBERLEY
Census Block Group	1
Census Block	1002
Census Tract	10809

Owner

428 Big Brown Dr is owned and occupied by an individual who acquired it in March 2020.

Source: Hays County records, as of October 15, 2025

Owner of Record	Individual Name on File
Co-owner	Co-owner on File
Mailing Address	428 BIG BROWN DR, AUSTIN, TX 78737-2543
Occupancy	Owner Occupied
Owner Type	Individual

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

Date	Document
May 10, 2022	Deed of Trust, Mortgage · Conventional Mortgage NEIGHBORHOOD LOANS
Mar 30, 2020	Vendor's Lien, Subdivision Related Transfer · Conventional Mortgage ENVOY MORTGAGE LTD
May 23, 2018	Loan Modification, Mortgage TEXAS CAP BK

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Mar 30, 2020
Deed Sale	Mar 30, 2020
Deed Document Number	20012157
Record Updated	Jun 8, 2026

May 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	HAYS TX
Property Address	428 BIG BROWN DR, AUSTIN, TX 78737-2543
Transaction Type	Mortgage
Record Updated	May 18, 2022
Title Company	CORRIDOR TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000023175
Date	May 10, 2022
Instrument	22023175

Lender

Name	NEIGHBORHOOD LOANS
Type	Mortgage Company
Address	DOWNERS GROVE, IL 60515

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jun 1, 2052

March 2020: Vendor's Lien, Subdivision Related Transfer

Document Type	Vendor's Lien
Jurisdiction	HAYS TX
Recording Date	Mar 30, 2020
Property Address	428 BIG BROWN DR, AUSTIN, TX 78737-2543
Document Number	0000012157
Map Reference	VOL 18 PG 305-309
Instrument Date	Mar 27, 2020
Instrument	20012157
Transaction Type	Subdivision Related Transfer
Record Updated	Oct 5, 2021

Transaction

Tax	$0.00
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	4835 N WILCKHEM RD, 4835, MELBOURNE, FL 32940

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	428 BIG BROWN DR, AUSTIN, TX 78737-2543

Mortgage

Document Number	0000012158
Date	Mar 30, 2020
Instrument	20012158

Lender

Name	ENVOY MORTGAGE LTD
Type	Mortgage Company
Special Notes	Seller Financed

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Apr 1, 2050

May 2018: Loan Modification, Mortgage

Document Type	Loan Modification
Jurisdiction	HAYS TX
Recording Date	May 23, 2018
Property Address	428 BIG BROWN DR, AUSTIN, TX 78737-2543
Instrument Date	May 21, 2018
Instrument	18029
Transaction Type	Mortgage
Record Updated	Feb 27, 2019
Title Company	OTHER

Transaction

Tax	$0.00
Additional	Multiple Parcels

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	780 S APOLLO BLVD #1 MELBOURNE FL 329011402, 1, MELBOURNE, FL 32901-1402

Mortgage

Document Number	0000018029
Date	May 23, 2018
Instrument	18029

Lender

Name	TEXAS CAP BK
Type	Bank
Address	2350 LAKESIDE BLVD # 800, RICHARDSON, TX 75082-4340

Agreement

Amount	Amount on Record
Term	12 Months
Due	May 22, 2019

Tax Assessment & Valuation

Source: Hays County assessment roll, as of August 1, 2025

Property Jurisdictions

Type	Name
State	Texas
County	Hays County
Unified School District	Dripping Springs Independent School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025		$1,348,070 Land $448,750 Building $899,320	$1,348,070 Land $448,750 Building $899,320
2024	$23,683.00
2023		$1,444,127 Land $448,750 Building $1,338,631	$1,787,381 Land $448,750 Building $1,338,631
2022	$21,368.00

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

Flood

FEMA maps place 428 Big Brown Dr 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 May 21, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

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
Flood Insurance Cost	Premium on File median of 11 policies
Nearby Flood Policies	11 in force
Nearby Flood Claims	2 (2013–2019)
Claims Outside the SFHA	1 of 2
Most Recent Claim	May 2019 · river or lake flooding

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

Wildfire risk around 428 Big Brown Dr is moderate, ranking above 57% of the US, with a 0.1% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Moderate above 57% of the US · lower than 61% of Texas
Wildfire Likelihood	0.1% 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	WEST TRAVIS COUNTY PUBLIC UTILITY AGENCY serves 35,664 people · EPA ID TX2270235
Water Source	Surface water
Last State Inspection	Jul 2023
Lead	2 ppb (2026) action level 15 ppb

Violations Reported to EPA

Water Quality	Turbidity resolved · Nov 2025
Treatment and Procedure	None last 10 years
Monitoring and Reporting	2 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 57 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Spectrum Cable	1,000 / 35
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: Nextlink, Spry Air Fiber.

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