500 Big Brown Dr, Austin, TX 78737 Property Records

Hays County property record for 500 Big Brown Dr, Austin, TX 78737

Property Summary

Property Type	Single Family Home
Details	5,405 sqft · built 2016
Lot Size	1.72 acres (75,185 sqft)
Owner	2 Individual Names on Record
Last Sale	$812,500 (Feb 2017)
Tax Bill	$21,929 (2024)
Deeds & Mortgages	Oct 2022 Line of Credit Mar 2021 Line of Credit + 3 more
Flood Zone	Zone X (minimal risk)
APN	`R145532`

Property Details

APN / Parcel Number

Primary APN	`R145532`
Alternative APN	`1145490000057004`

Interior

Stories	1 Story
Building Area	5,405 sqft Living Area
Gross Area	6,644 sqft
1st Floor Area	3,589 sqft
Upper Floors Area	1,816 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 2016
Effective Year Built	Effective 2016
Exterior Material	Stone
Roof Type	Gable/Hip
Roof Material	Composition Shingle
Lot Area	75,185 sqft (1.72 acres)
Garage Type	Attached
Garage Area	1,069 sqft
Parking Spaces	4 Parking Spaces

Exterior Amenities

Porch	Covered Porch
Porch Area	242 sqft
Guest House	680 sqft
Outdoor Kitchen / BBQ	Outdoor Kitchen / BBQ

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Account Number	R145532
Street Address	500 BIG BROWN DR
City	AUSTIN
State	TX
Zip	78737-2544
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	KEY RANCH SEC 2, LOT 57, ACRES 1.726
Legal Subdivision	KEY RANCH SEC 2
Legal Block	1
Legal Lot Number	57
Jurisdiction	HAYS TX
Township / Civil Division	DRIPPING SPRINGS-WIMBERLEY
Census Block Group	1
Census Block	1002
Census Tract	10809

Owner

Source: Hays County records, as of March 30, 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	500 BIG BROWN DR, AUSTIN, TX 78737-2544
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Oct 13, 2022	Deed of Trust, Mortgage · Line of Credit FIRST UNITED BANK & TRUST CO
Mar 23, 2021	Deed of Trust, Mortgage · Line of Credit FIRST UNITED BANK & TRUST CO
Mar 4, 2020	Deed of Trust, Mortgage · Conventional Mortgage FIRST UNITED BANK & TRUST CO
Oct 31, 2018	Deed of Trust, Mortgage · Line of Credit BRANCH BK&TR
Feb 1, 2017	Vendor's Lien, Transfer · ARM FIRST UNITED BANK & TRUST CO

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Feb 1, 2017 · Amount on Record
Deed Sale	Feb 1, 2017 · Amount on Record
Deed Document Number	20174038
Record Updated	Jun 8, 2026

October 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	HAYS TX
Property Address	500 BIG BROWN DR, AUSTIN, TX 78737-2544
Transaction Type	Mortgage
Record Updated	Aug 15, 2023

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	500 BIG BROWN DR, AUSTIN, TX 78737-2544

Mortgage

Document Number	0000048425
Date	Oct 13, 2022
Instrument	22048425

Lender

Name	FIRST UNITED BANK & TRUST CO
Type	Bank
Address	AUSTIN, TX 78734

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

March 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	HAYS TX
Property Address	500 BIG BROWN DR, AUSTIN, TX 78737-2544
Transaction Type	Mortgage
Record Updated	Apr 12, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000014193
Date	Mar 23, 2021
Instrument	21014193

Lender

Name	FIRST UNITED BANK & TRUST CO
Type	Bank
Address	AUSTIN, TX 78734

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

March 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	HAYS TX
Property Address	500 BIG BROWN DR, AUSTIN, TX 78737-2544
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	ITC

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000008354
Date	Mar 4, 2020
Instrument	20008354

Lender

Name	FIRST UNITED BANK & TRUST CO
Type	Bank
Address	DURANT, OK 74701

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Mar 1, 2050

October 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	HAYS TX
Property Address	500 BIG BROWN DR, AUSTIN, TX 78737-2544
Document Number	0000041353
Instrument Date	Oct 31, 2018
Transaction Type	Mortgage
Record Updated	Dec 11, 2018

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Husband and Wife
Address	500 BIG BROWN DR AUSTIN TX 787372544, AUSTIN, TX 78737-2544

Mortgage

Document Number	0000041353
Date	Nov 26, 2018
Instrument	41353

Lender

Name	BRANCH BK&TR
Type	Bank
Address	WHITEVILLE, NC 28472

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	300 Months
Due	Nov 25, 2043

Interest

Rate Type	Adjustable Rate

February 2017: Vendor's Lien, Transfer

Document Type	Vendor's Lien
Jurisdiction	HAYS TX
Recording Date	Feb 1, 2017
Property Address	500 BIG BROWN DR, AUSTIN, TX 78737-2544
Document Number	0000004038
Map Reference	VOL18 PG305-309
Instrument Date	Jan 31, 2017
Instrument	17004038
Transaction Type	Transfer
Record Updated	Oct 5, 2021

Transaction

Tax	$0.00
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	00000

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	500 BRANDON WAY # BIG, BIG, AUSTIN, TX 78733-3268

Mortgage

Document Number	0000004039
Date	Feb 1, 2017
Instrument	17004039

Lender

Name	FIRST UNITED BANK & TRUST CO
Type	Bank
Special Notes	Seller Financed

Agreement

Type	ARM
Amount	Amount Recorded
Term	360 Months
Due	Feb 1, 2047

Interest

Rate Type	Adjustable Rate
Rate	4.1%
Type Change Date	Feb 1, 2032
Change Frequency	Annually
Min Rate At Change	4.1%
Max Rate At Change	9.1%
Index	1-Year LIBOR
Max Rate	9.1%

Mortgage

Document Number	0000004040
Date	Feb 1, 2017
Instrument	17004040

Lender

Name	INTERNATIONAL BANK OF COMMERCE
Type	Bank
Address	AUSTIN, TX 78758

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	180 Months
Due	Feb 1, 2032

Tax Assessment & Valuation

Source: Hays County assessment roll, as of December 26, 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		$1,545,177 (+15.15%) Land $339,490 Building $1,205,687	$1,545,177 (-16.61%) Land $339,490 Building $1,205,687
2024	$21,929.00 (+8.29%)
2023		$1,341,914 Land $339,490 Building $1,513,380	$1,852,870 Land $339,490 Building $1,513,380
2022	$20,251.00

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 May 21, 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 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

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

Wildfire Risk	Moderate above 60% of the US · above 43% 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 61 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
AT&T Fixed Wireless	100 / 20

May also be available: Nextlink, Spry Air Fiber.

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