This home's estimate is 10.2% lower than the average sale price ($656K) of 6 comparable homes.
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- Sale & tax history
- Property details
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3520 Shellcastle Ln, Round Rock, TX 78681
About this home
ROOMY 4 bedroom w/ office, media room & lg loft. Scraped teak floors on main level. Main floor master w/ door to outside & pad ready for hot tub. Pool sized backyard, patio has ceiling fans & wired for lighting. Microwave is also convection or 2nd oven. 14' ceilings in study. Formal dining. 3 car garage Sprinkler Sys:Yes
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Market trends in 78681, TX
Last updated September 2026
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Provided by Redfin
Sale history for 3520 Shellcastle Ln
$109/sq ft
Tax history for 3520 Shellcastle Ln
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Public record
- Public record
- Zoning
SF2
Single-Family - Standard Lot District
To establish and preserve areas of low intensity land use primarily devoted to traditional single-family residential development.Include but are not limited to:
- Religious facility
- Housing-Single unit
- Fire house
- Police station
- Park & open space
Property details
Parking
- Garage/Carport Information
- Has Garage
- # of Garage Spaces: 3
- Parking
- Features: Attached
- # of Covered Spaces: 3
Interior
- Bedroom Information
- # of Main Level Bedrooms: 1
- Bathroom Information
- # of Full Bathrooms: 3
- # of Half Bathrooms: 1
- Room 1 Information
- Media Room
- Room 2 Information
- Primary Bedroom
- Room 3 Information
- Laundry
- Room 4 Information
- Primary Bathroom
- Room 5 Information
- Office
- Room 6 Information
- Kitchen
- Fireplace Information
- Has Fireplace
- # of Fireplaces: 1
- Features: Living Room
- Equipment
- Appliances: Dishwasher, Free-Standing Range, Disposal, Microwave
- Interior Features
- Unfurnished
- Flooring: Carpet, Tile, Wood
- Other Features: Main Level Primary, Walk-In Closet(s)
Exterior
- Building Information
- Stories: 2
- Roof Details: Composition
- Construction Details: Masonry
- Exterior Features
- Exterior Features: No Exterior Steps
- Patio And Porch Features: Porch
- Fencing: Wood
- Pool and Spa Information
- Pool Features: Community
- Lot Information
- Lot Size Area: 0.257
- Lot Size Acres: 0.257
- Lot Features: Sprinklers In Ground, Trees Small Size
- Property Information
- Foundation Details: Slab
- Resale
Financial
- Tax Information
- Tax Year: 2015
- Rental Information
- Pets Allowed Details: No
Utilities
- Utility Information
- Utilities: Electricity Available, Natural Gas Available
- Sewer: Public Sewer
- Water Source: Public
- Heating & Cooling
- Has Cooling
- Cooling: Central Air
- Has Heating
- Heating: Central
Location
- HOA Information
- Has Home Owners Association
- Association Name: Mayfield Ranch HOA
- Association Fee: $35
- Monthly
- Association Fee Includes: Common Areas
- Community Information
- Community Features: Playground, Park, Pool
Public facts
- Beds: —
- Baths: 3.5
- Sq. Ft.: 3,161
- Stories: 2.0
- Lot Size: 0.26 acres
- Style: Single Family Residential
- Year Built: 2006
- Year Renovated: 2006
- County: Williamson County
- APN: R460796
Around this home
Schools
Public PreK-5 • Assigned • 0.6mi
Public 6-8 • Assigned • 1.4mi
Public 9-12 • Assigned • 5.1mi
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
Minimal risk of a flood reaching the building in the next 30 years
0.77% chance of being in a wildfire in next 30 years
7 days above 107° expected this year, 24 days in 30 years
70% chance of strong winds in next 30 years
1 unhealthy days expected this year, 1 days in 30 years
Sun exposure
In this area, properties receive around 9.5 hours in June and 5 hours in December, which is comparable to the U.S. average for solar exposure.
Nearby similar homes
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Home values near 3520 Shellcastle Ln
| Address | Redfin Estimate |
|---|---|
3 Beds | 2 Baths | 2549 Sq. Ft. | $503,293 |
3 Beds | 2 Baths | 2340 Sq. Ft. | $481,148 |
| Address | Redfin Estimate |
|---|---|
4 Beds | 2 Baths | 2359 Sq. Ft. | $475,654 |
- Beds | 2 Baths | 1903 Sq. Ft. | $432,477 |
| Address | Redfin Estimate |
|---|---|
4 Beds | 2.5 Baths | 2181 Sq. Ft. | $479,893 |
3 Beds | 2 Baths | 2019 Sq. Ft. | $464,570 |
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