4509 Sidereal Dr, Austin, TX 78727 Property Records

Travis County property record for 4509 Sidereal Dr, Austin, TX 78727

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,852 sqft · built 1984
Lot Size	0.186 acres (8,104 sqft)
Owner	2 Individual Names on Record
Last Sale	$448,600 (May 2018)
Tax Bill	$7,039 (2025)
Deeds & Mortgages	Apr 2023 Transfer Apr 2020 Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`0266080818`

Property Details

APN / Parcel Number

Primary APN	`0266080818`
Alternative APNs	`02660808180000` `270423`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Stories	1 Story
Building Area	1,852 sqft Living Area
Gross Area	2,312 sqft
1st Floor Area	1,852 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1984
Effective Year Built	Effective 1984
Construction Type	Wood
Roof Type	Gable
Roof Material	Composition Shingle
Lot Area	8,104 sqft (0.186 acres)
Lot Dimensions	131 ft deep x 60 ft wide
Garage Type	Attached
Garage Area	460 sqft
Driveway	Driveway
Parking Spaces	2 Parking Spaces

Exterior Amenities

Porch	Open Porch
Porch Area	95 sqft
Deck Area	402 sqft
Patio Area	80 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Account Number	270423
Street Address	4509 SIDEREAL DR
City	AUSTIN
State	TX
Zip	78727-5121
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 18 BLK V MILWOOD SEC 10
Legal Subdivision	MILWOOD SEC 10
Legal Block	V
Legal Lot Number	18
Jurisdiction	TRAVIS TX
Township / Civil Division	AUSTIN
Census Block Group	1
Census Block	1003
Census Tract	41300

Owner

Source: Travis County records, as of March 16, 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	4509 SIDEREAL DR, AUSTIN, TX 78727-5121
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Apr 7, 2023	Transfer on Death Deed, Transfer
Apr 6, 2020	Deed of Trust, Mortgage GUARANTEED RATE
May 21, 2018	Vendor's Lien, Transfer · Conventional Mortgage DHI MORTGAGE COMPANY LTD

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 21, 2018 · Amount on Record
Deed Sale	May 21, 2018 · Amount on Record
Prior Sale	Apr 26, 2010 · Amount on Record
Deed Document Number	201877457
Last Transfer Date	Apr 5, 2023
Transfer Doc	0000036803
Record Updated	Sep 20, 2026

April 2023: Transfer on Death Deed, Transfer

Document Type	Transfer on Death Deed
Jurisdiction	TRAVIS TX
Recording Date	Apr 7, 2023
Property Address	4509 SIDEREAL DR, AUSTIN, TX 78727-5121
Document Number	0000036803
Map Reference	VOL 81 PG 235&236
Instrument Date	Apr 5, 2023
Instrument	2023036803
Transaction Type	Transfer
Record Updated	Jun 7, 2023

Transaction

Tax	$0.00
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	4509 SIDEREAL DR, AUSTIN, TX 78727-5121

April 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	TRAVIS TX
Property Address	4509 SIDEREAL DR, AUSTIN, TX 78727-5121
Document Number	0000061370
Instrument Date	Apr 6, 2020
Transaction Type	Mortgage
Record Updated	May 13, 2020
Title Company	OTHER

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Husband and Wife
Address	4509 SIDEREAL DR AUSTIN TX 787275121, AUSTIN, TX 78727-5121

Mortgage

Document Number	0000061370
Date	Apr 17, 2020
Instrument	61370

Lender

Name	GUARANTEED RATE
Address	CHICAGO, IL 60613

Agreement

Amount	Amount Recorded
Term	360 Months
Due	Apr 16, 2050

May 2018: Vendor's Lien, Transfer

Document Type	Vendor's Lien
Jurisdiction	TRAVIS TX
Recording Date	May 21, 2018
Property Address	4509 SIDEREAL DR, AUSTIN, TX 78727-5121
Document Number	0000077457
Map Reference	VOL7926 PG144
Instrument Date	May 18, 2018
Instrument	2018077457
Transaction Type	Transfer
Record Updated	Nov 11, 2021
Title Company	CAPITAL TITLE

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	4509 SIDEREAL DR, AUSTIN, TX 78727-5121

Mortgage

Document Number	0000077458
Date	May 21, 2018
Instrument	2018077458

Lender

Name	DHI MORTGAGE COMPANY LTD
Type	Mortgage Company
Special Notes	Seller Financed

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jun 1, 2048

Tax Assessment & Valuation

Source: Travis County assessment roll, as of March 16, 2026

Property Jurisdictions

Type	Name
State	Texas
Municipality	Austin City
County	Travis County
Unified School District	Austin Independent School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$7,039.00 (-5.82%) Homeowner's exemption	$452,537 (-17.02%) Land $265,909 Building $186,628	$452,537 (-17.02%) Land $265,909 Building $186,628
2024	$7,474.00 (+4.74%)
2023		$545,363 Land $150,000 Building $395,363	$545,363 Land $150,000 Building $395,363
2022	$7,136.00

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 17, 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
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	9 in force

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 99.1% of the US · lower than 99.3% of Texas
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	CITY OF AUSTIN WATER & WASTEWATER serves 1,115,323 people · EPA ID TX2270001
Water Source	Surface water
Last State Inspection	Jul 2023
Lead	Under 1 ppb (2022–2024) action level 15 ppb

Violations Reported to EPA

Water Quality	Turbidity resolved · Feb 2022
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 504 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Google Fiber Fiber	8,000 / 8,000
Spectrum Cable	1,000 / 1,000
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20
AT&T Fixed Wireless · DSL · Fiber in parts of the area	100 / 20

May also be available: Astound Broadband, Western Broadband.

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