400 Big Brown Dr, Austin, TX 78737 Property Records

Hays County property record for 400 Big Brown Dr, Austin, TX 78737

Property Summary

Property Type	Single Family Home
Details	3,173 sqft · built 2018
Lot Size	1.5 acres (65,732 sqft)
Owner	2 Individual Names on File
Last Sale	$863,170 (May 2023)
Tax Bill	$13,718 (2024)
Deeds & Mortgages	May 2023 Mortgage Feb 2019 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`R145537`

Property Details

APN / Parcel Number

Primary APN	`R145537`
Alternative APN	`1145490000062004`

Interior

Stories	1 Story
Building Area	3,173 sqft Living Area
Gross Area	4,152 sqft
1st Floor Area	3,173 sqft

Exterior

Year Built	Built 2018
Effective Year Built	Effective 2018
Exterior Material	Brick
Roof Type	Hip
Roof Material	Composition Shingle
Lot Area	65,732 sqft (1.5 acres)
Garage Type	Attached
Garage Area	671 sqft
Parking Spaces	2 Parking Spaces
Porch	Covered Porch
Porch Area	508 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Account Number	R145537
Street Address	400 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 62, ACRES 1.509
Legal Subdivision	KEY RANCH SEC 2
Legal Block	1
Legal Lot Number	62
Jurisdiction	HAYS TX
Township / Civil Division	DRIPPING SPRINGS-WIMBERLEY
Census Block Group	1
Census Block	1002
Census Tract	10809

Owner

400 Big Brown Dr is owned and occupied by two individuals who bought it in May 2023.

Source: Hays County records, as of August 25, 2025

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 File
Mailing Address	400 BIG BROWN DR, AUSTIN, TX 78737-2543
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
May 19, 2023	Intrafamily Transfer, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE
Feb 12, 2019	Vendor's Lien, Subdivision Related Transfer ENVOY MORTGAGE LTD
May 23, 2018	Loan Modification, Mortgage TEXAS CAP BK
May 30, 2017	Loan Modification, Mortgage TEXAS CAP BK

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 19, 2023 · Amount on File
Deed Sale	May 19, 2023 · Amount on File
Prior Sale	Feb 12, 2019 · Amount on File
Deed Document Number	202317683
Prior Transfer Date	May 15, 2023
Prior Transfer Doc	0000017683
Record Updated	Oct 29, 2026

May 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	HAYS TX
Recording Date	May 19, 2023
Property Address	400 BIG BROWN DR, AUSTIN, TX 78737-2543
Document Number	0000017683
Map Reference	DOC 2016-16010751
Instrument Date	May 15, 2023
Instrument	23017683
Transaction Type	Transfer
Record Updated	Jun 2, 2023

Transaction

Tax	$0.00
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	400 BIG BROWN DR, AUSTIN, TX 78737-2543

Mortgage

Document Number	0000017684
Date	May 19, 2023
Instrument	23017684

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jun 1, 2053

February 2019: Vendor's Lien, Subdivision Related Transfer

Document Type	Vendor's Lien
Jurisdiction	HAYS TX
Recording Date	Feb 12, 2019
Property Address	400 BIG BROWN DR, AUSTIN, TX 78737-2543
Document Number	0000004144
Map Reference	VOL 18 PG 305-309
Instrument Date	Jan 30, 2019
Instrument	19004144
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	7200 N MO PAC EXPY # EXPY165, 7200, AUSTIN, TX 78731-3069

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	400 BIG BROWN DR, AUSTIN, TX 78737-2543

Mortgage

Document Number	0000004145
Date	Feb 12, 2019
Instrument	19004145

Lender

Name	ENVOY MORTGAGE LTD
Type	Mortgage Company
Special Notes	Seller Financed

Agreement

Amount	Amount on Record
Term	361 Months
Due	Mar 1, 2049

May 2018: Loan Modification, Mortgage

Document Type	Loan Modification
Jurisdiction	HAYS TX
Recording Date	May 23, 2018
Property Address	400 BIG BROWN DR, AUSTIN, TX 78737-2543
Instrument Date	May 21, 2018
Instrument	18153
Transaction Type	Mortgage
Record Updated	Mar 6, 2019
Title Company	OTHER

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	0000018153
Date	May 23, 2018
Instrument	18153

Lender

Name	TEXAS CAP BK
Type	Bank
Address	2350 LAKESIDE BOULEVARD SAITO 800, RICHARDSON, TX 75082

Agreement

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

May 2017: Loan Modification, Mortgage

Document Type	Loan Modification
Jurisdiction	HAYS TX
Recording Date	May 30, 2017
Property Address	400 BIG BROWN DR, AUSTIN, TX 78737-2543
Instrument Date	May 24, 2017
Instrument	18121
Transaction Type	Mortgage
Record Updated	Sep 1, 2017
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	0000018121
Date	May 30, 2017
Instrument	18121

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 29, 2018

Tax Assessment & Valuation

Source: Hays County assessment roll, as of August 25, 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		$980,589 Land $300,490 Building $680,099	$980,589 Land $300,490 Building $680,099
2024	$13,718.00
2023		$839,062 Land $300,490 Building $857,950	$1,158,440 Land $300,490 Building $857,950
2022	$12,468.00

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

Flood

FEMA maps place 400 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 400 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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