3500 Shellcastle Ln, Round Rock, TX 78681 Property Records

Williamson County property record for 3500 Shellcastle Ln, Round Rock, TX 78681 · Last verified August 2026

Property Summary

Property Type	Single Family Home
Details	2 ba · 2,019 sqft · built 2007
Lot Size	0.197 acres (8,564 sqft)
Owner	Individual Name on File
Last Sale	$623,400 (Nov 2021)
Tax Bill	$6,728 (2025)
Deeds & Mortgages	Nov 2021 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`R-16-5693-000G-0014`

Property Details

APN / Parcel Number

Primary APN	`R-16-5693-000G-0014`
Alternative APNs	`R460801` `261006`

Interior

Full Baths	2 Baths
Stories	1 Story
Building Area	2,019 sqft Living Area
1st Floor Area	2,019 sqft
Flooring	Tile
Interior Walls	Wallboard/Drywall
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 2007
Effective Year Built	Effective 2007
Exterior Material	Brick Veneer
Roof Type	Hip
Roof Material	Other
Lot Area	8,564 sqft (0.197 acres)
Garage Area	458 sqft
Parking Spaces	2 Parking Spaces
Porch	Open Porch
Porch Area	458 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Account Number	R165693000G0014
Street Address	3500 SHELLCASTLE LN
City	ROUND ROCK
State	TX
Zip	78681-1143
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	S8720 - VILLAGE AT MAYFIELD RANCH PH 3, BLOCK G, LOT 14
Legal Subdivision	VILLAGE AT MAYFIELD RANCH PH 3
Legal Phase	3
Legal Block	G
Legal Lot Number	14
Jurisdiction	WILLIAMSON TX
Township / Civil Division	ROUND ROCK-GEORGETOWN
Census Block Group	2
Census Block	2009
Census Tract	20608

Owner

Source: Williamson County records · APN R-16-5693-000G-0014

Assessment roll updated September 15, 2025 · Last verified August 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Individual Name on File
Mailing Address	3500 SHELLCASTLE LN, ROUND ROCK, TX 78681-1143
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Nov 22, 2021 · Amount on Record
Deed Sale	Nov 22, 2021 · Amount on Record
Prior Sale	Jan 28, 2008 · Amount on Record
Deed Document Number	2021178269
Prior Transfer Date	Nov 18, 2021
Prior Transfer Doc	0000178269
Record Updated	Sep 20, 2026

November 2021: Vendor's Lien, Transfer

Document Type	Vendor's Lien
Jurisdiction	WILLIAMSON TX
Recording Date	Nov 22, 2021
Property Address	3500 SHELLCASTLE LN, ROUND ROCK, TX 78681-1143
Document Number	0000178269
Map Reference	CAB Z SL 283
Instrument Date	Nov 18, 2021
Instrument	2021178269
Transaction Type	Transfer
Record Updated	Dec 07, 2021
Title Company	INDEPENDENCE TITLE

Transaction

Tax	$0.00
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3500 SHELLCASTLE LN, ROUND ROCK, TX 78681-1143

Mortgage

Document Number	0000178270
Date	Nov 22, 2021
Instrument	2021178270

Lender

Name	AMERIFIRST FINANCIAL INC
Type	Mortgage Company
Special Notes	Seller Financed

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Dec 01, 2051

Tax Assessment & Valuation

Source: Williamson County records · Assessment roll updated September 15, 2025 · Last verified August 2026

Property Jurisdictions

Type	Name
State	Texas
County	Williamson County
Municipality	Round Rock City
Unified School District	Round Rock Independent School District (PK - 12)

Tax Bill & Assessment History

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

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$6,728.00 Homeowner's exemption	$478,561 (+2.15%)	$495,348 (+5.73%) Land $120,000 Building $375,348
2024	$6,728.00 (-6.72%)
2023	$7,213.00 (-26.93%) Homeowner's exemption	$468,486 Land $136,000 Building $332,486	$468,486 Land $136,000 Building $332,486
2022	$9,871.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Williamson County (48491C), updated October 5, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 484910206082, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X
Special Flood Hazard Area	No
Flood Hazard	Minimal
500-Year Floodplain	No
Flood Insurance Cost	Premium on Record median of 1 individual NFIP policies nearby
Nearby Flood Policies	1 in force

Wildfire

Wildfire Risk	Not rated no burnable land in reach
Wildfire Likelihood	Negligible
Exposure	None beyond ember reach

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.