Front exterior of a home in the Whisper South community, located in San Marcos, TX (Image 1).

Front exterior of a home in the Whisper South community, located in San Marcos, TX (Image 2).

Furnished interior in a model home at Whisper South in San Marcos (Image 3).

Furnished interior in a model home at Whisper South in San Marcos (Image 4).

Furnished interior in a model home at Whisper South in San Marcos (Image 5).

Front exterior of a home in the Whisper South community, located in San Marcos, TX (Image 6).

Front exterior of a home in the Whisper South community, located in San Marcos, TX (Image 7).

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Front exterior of a home in the Whisper South community, located in San Marcos, TX (Image 8).

Front exterior of a home in the Whisper South community, located in San Marcos, TX (Image 9).

Furnished interior in a model home at Whisper South in San Marcos (Image 10).

Furnished interior in a model home at Whisper South in San Marcos (Image 11).

Furnished interior in a model home at Whisper South in San Marcos (Image 12).

Furnished interior in a model home at Whisper South in San Marcos (Image 13).

Furnished interior in a model home at Whisper South in San Marcos (Image 14).

Furnished interior in a model home at Whisper South in San Marcos (Image 15).

Furnished interior in a model home at Whisper South in San Marcos (Image 16).

Furnished interior in a model home at Whisper South in San Marcos (Image 17).

Furnished interior in a model home at Whisper South in San Marcos (Image 18).

Furnished interior in a model home at Whisper South in San Marcos (Image 19).

Coming soon

Whisper South by CastleRock Communities

Harris Hill Rd, San Marcos, TX 78666

13 plans
1,157 - 2,817 sqft

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Plans

Ruby

Contact for price

3 bd
2.5 ba
1,895 sqft

Onyx

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3 bd
2 ba
1,607 sqft

Emerald

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3 bd
2 ba
1,355 sqft

Topaz

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3 bd
2 ba
1,157 sqft

Comal

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3 bd
2 ba
1,604 sqft

Sabine

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3 bd
2 ba
1,915 sqft

Sapphire

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3 bd
2.5 ba
2,163 sqft

Blanco

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4 bd
2.5 ba
2,280 sqft

Concho

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4 bd
3.5 ba
2,817 sqft

Community highlights

Welcome to Whisper South, a single-family home community by CastleRock Communities located in Harris Hill Rd, San Marcos, TX 78666. Currently, the community status is Coming soon. There are no available options but they are coming soon. Whisper South homes size range from 1,157 to 2,817 square feet on various lot sizes.

Close to Barton Creek Greenbelt

23.7 miles away

Great location

Expansive Austin greenbelt with hiking, swimming holes, and limestone cliffs tucked amid Hill Country suburbs.

23.7 miles away

Great location

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Community details

Builder(s):: CastleRock Communities
Master planned community:: Whisper
Home type:: Single-Family

Selling status:: Coming soon
Contract to close:: 30-45 days
School district:: San Marcos Consolidated Independent School District

Community amenities

CastleRock Communities has incorporated specific design elements into Whisper South by CastleRock Communities to foster a sense of place. The single-family neighborhood features 8 amenities, with Energy Efficient being a key example of the available facilities. These neighborhood amenities and features are distributed to serve the community's needs. The variety of features suggests a planned approach to neighborhood living in San Marcos, Texas.

Energy Efficient
Club House
Park Nearby
Disc Golf
Golf Club
Airport Nearby
Highway Nearby
Walking, Jogging, Hike Or Bike Trails

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About the builder - CastleRock Communities

2004foundation year
33k+homes delivered
107communities on Jome
670homes on Jome

Focused on creating new construction homes within premier master-planned communities, CastleRock Communities emphasizes building a strong sense of community alongside quality residences. The company's commitment to customer satisfaction and energy-efficient designs is reflected in their A+ rating from the Better Business Bureau and multiple recognitions as a Top 50 National Builder.

View CastleRock Communities builder profile >

Neighborhood

Community address

Harris Hill Rd, San Marcos, TX 78666

City:: San Marcos
County:: Hays
Zip Code:: 78666

Schools in San Marcos Consolidated Independent School District

Students living in Whisper South by CastleRock Communities follow a designated feeder pattern within the San Marcos Consolidated Independent School District. The journey starts at Travis Elementary, serving Elementary grades just 2.2 mi from the neighborhood. From there, students advance to Goodnight Middle, a public campus for Middle grades located roughly 4.8 mi away. Education culminates at Southwest Texas High School, supporting grades within 1.9 mi and holding a rating of . This progression outlines the academic options in San Marcos, Texas.

Grades 08-12Private
southwest texas high school
1.9 mi
2800 hwy airport blvd
na
Grades KG-05Public
travis elementary
2.2 mi
1437 post road
4/10
Grades PK-PKPublic
bonham pre-k school
4.6 mi
125 hwy 123
na
Grades 06-08Public
goodnight middle
4.8 mi
1301 texas highway 123
3/10
Grades KG-05Public
dezavala elementary
4.8 mi
150 de zavala drive
4/10
Grades KG-05Public
crockett elementary
4.9 mi
1300 girard street
7/10

GreatSchools’ Summary Rating calculation is based on 4 of the school’s themed ratings, including test scores, student/academic progress, college readiness, and equity. This information should only be used as a reference. Jome is not affiliated with GreatSchools and does not endorse or guarantee this information. Please reach out to schools directly to verify all information and enrollment eligibility. Data provided by GreatSchools.org © 2025

More homes in San Marcos Consolidated Independent School District

Places of interest

Within the wider region, Business Center venues play a role in shaping the environment around Whisper South by CastleRock Communities. The list includes various locations, such as Oracle, which is situated about 24.9 mi away. These destinations sit within a broader context of regional amenities, offering a glimpse into the area's layout. Together, they form the nearby attractions and amenities available to the population.

River

San Marcos River3.5 mi

Rio Vista Falls (San Marcos River)3.6 mi

Comal River20.1 mi

Education

Texas State University3.5 mi

Austin Community College - Hays Campus8.0 mi

Austin Community College - South Austin Campus21.7 mi

Lake

Lake Dunlap19.6 mi

Canyon Lake22.3 mi

Lake McQueeney23.3 mi

Park

McKinney Falls State Park21.2 mi

Barton Creek Greenbelt23.7 mi

Zilker Park25.5 mi

Getting around

Local travel options for Whisper South by CastleRock Communities are defined by specific mobility scores that impact daily life. The Walk Score stands at 0 (Car-Dependent), providing a baseline for foot travel. Biking capability is rated at 29 (Somewhat Bikeable). These details focus on getting around San Marcos, Texas.

Walk score ®

0 /100

Car-Dependent

Bike score ®

29 /100

Somewhat Bikeable

Air quality

Using standardized environmental scales, the atmosphere around Whisper South by CastleRock Communities is classified as Good for the Jan 18, 2026. This rating reflects measurements of OZONE, which stands at 36 (Moderate). Such standardized reporting ensures consistent access to air quality data for San Marcos, Texas.

The 30-day average AQI:Good

050100150200300>300

Air quality is satisfactory, and air pollution poses little or no risk.

The 30-day average pollutant concentrations

PM2.5Moderate53

PM10Good44

OZONEGood36

Air quality is satisfactory, and air pollution poses little or no risk.

Provided by AirNow

Air quality

Natural hazards risk

Data transparency allows residents of Whisper South by CastleRock Communities to see how local conditions are rated. The FEMA dataset includes scores for multiple environmental factors, ensuring that the community is evaluated using the same standards applied across the region. This consistency is crucial for building a true understanding of the local landscape. Specifically, the value for Tornado is recorded as 96.85, with a rating of Relatively High. These standardized measures are central to the list of FEMA-based hazard indicators, providing a reliable benchmark for the area.

Riverine flooding99.3

Relatively High

Wildfire92.0

Relatively Moderate

Hurricane72.3

Relatively Low

Earthquake27.6

Very Low

Heat wave89.7

Relatively Moderate

Strong wind93.0

Relatively High

Tornado96.9

Relatively High

Winter weather96.2

Relatively High

Cold wave90.1

Relatively High

Drought74.4

Relatively Low

Hail98.4

Relatively High

Lightning94.2

Relatively High

Ice storm77.7

Relatively Moderate

Landslide27.8

Relatively Low

Provided by FEMA

Financial details

The price is yet to be defined, but the area average is $339,994.

Average home price in San Marcos, TX 78666

$339,994

Average new home price

$197

Average price per sqft

Calculated based on the Jome data

Financials

Whisper South by CastleRock Communities

Discover elevated living in Whisper South, the newest master-planned community in San Marcos, TX. Whisper South is where the natural beauty of the Texas Hill Country meets thoughtful, modern home design by CastleRock Communities—a trusted leader in residential new home construction. Perfectly located between Austin and San Antonio, this community offers an unbeatable combination of luxury and location, ideal for first-time and experienced homebuyers, professionals relocating for new opportunities, and families looking to build their forever home. With access to top-rated schools, scenic parks, and endless adventure, Whisper South delivers the lifestyle you've been waiting for. Live minutes from I-35 for an easy commute, spending less time on the road and more time enjoying life. Families will appreciate being zoned to San Marcos CISD, while outdoor enthusiasts will love exploring Canyon Lake Gorge Tours, Wimberley Zipline Adventures, and a wide range of weekend activities like water sports and picnicking in nearby trails and natural springs. CastleRock Communities makes it easy to build a new home that reflects your personal style and budget. Choose from versatile floor plans, featuring three- and four-bedroom layouts, flexible living spaces, and spacious designs perfect for growing families or hosting guests. Our homes offer modern finishes, energy-efficient features, and customizable options, giving you the power to build your dream home without compromise. Every detail—from stylish kitchens with designer-selected finishes to open-concept living spaces and spacious backyards—is designed to deliver comfort, functionality, and long-term value. With affordable new homes, personalized design options, and a location that connects you to both city life and natural serenity, Whisper South isn’t just a place to live—it’s where you’ll love to call home. We invite you to tour available homes and learn more about the homebuilding process. Your Hill Country lifestyle starts here!

Last checked Jan 18, 2:15 am