
A major new investment is bringing additional attention to Castroville and the growing U.S. Highway 90 corridor west of San Antonio.
According to a project filing with the Texas Department of Licensing and Regulation, CyrusOne LP is planning a privately funded data center at 3397 U.S. Highway 90 West in Castroville. The filing describes an approximately 460,000-square-foot facility with an estimated construction cost of $500 million and a listed completion date of June 1, 2027.
Project details and schedules can change, but an announcement of this size naturally raises questions about what continued investment could mean for Castroville homeowners, prospective buyers and the local real estate market.
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Why the Castroville Data Center Matters
The proposed project is significant because of its size and location along the corridor connecting Castroville with San Antonio’s rapidly growing west side.
Castroville has long been known for its Alsatian heritage, historic architecture, Medina River setting and small-town character. At the same time, residential, commercial and technology investment continues to move west from San Antonio into Medina County.
The data center is one more indication that businesses and developers are paying closer attention to the Castroville area. It could contribute to construction activity, infrastructure investment and greater awareness of the community.
It may also create reasonable questions about traffic, utilities, power, water, nearby land uses and how Castroville can accommodate growth while preserving the character that makes it distinctive.
Could It Affect Castroville Home Values?
It is too early to predict that this project will cause Castroville home values to rise, fall or change at any specific rate.
Home values are influenced by many factors, including the number of homes available for sale, buyer demand, interest rates, property condition, lot size, schools, taxes, road access and surrounding development.
A major investment may create additional interest in an area, but that does not mean every nearby property will be affected in the same way. The possible impact on an individual home may depend more on its location, surrounding land uses, access routes and neighborhood than on the overall cost of the project.
It is also important to distinguish temporary construction activity from permanent employment. Large data center projects can generate significant construction work, but they do not necessarily create the same number of long-term jobs as a similarly sized office or manufacturing development.
For those reasons, the announcement should be viewed as part of Castroville’s broader growth story rather than as a guarantee of an immediate housing boom.
What Buyers and Homeowners Should Watch
Buyers considering Castroville should continue evaluating homes based on the specific property and neighborhood rather than making a decision because of one development announcement.
Important factors to consider include:
- Planned residential, commercial or industrial uses nearby
- Road improvements and potential traffic changes
- Water, sewer, well and septic service
- City limits, property taxes and utility providers
- School district and attendance boundaries
- Floodplain conditions and drainage
- Deed restrictions or homeowners association requirements
These considerations are especially important in the Castroville area because properties with Castroville mailing addresses may be located inside the city, outside the incorporated city limits or in newer communities closer to San Antonio.
Current homeowners should also stay informed about development near their property, recent comparable sales and changes in local housing inventory. Someone considering selling should rely on current market data and a property-specific evaluation rather than assuming that a major development will automatically increase the home’s value.
Growth Brings Opportunity and Questions
Continued investment in Castroville and Medina County may support new services, infrastructure and economic activity. It also makes thoughtful planning increasingly important.
Castroville’s appeal comes from its history, setting and individual character. The community’s challenge will be balancing future investment with the qualities that have attracted generations of residents and newer buyers.
For homeowners and prospective buyers, the best approach is neither to assume all growth is positive nor to assume it is negative. The better question is how a particular development may relate to a specific home, neighborhood and long-term real estate decision.
Explore Castroville Real Estate
Castroville offers a diverse selection of historic homes, established neighborhoods, new construction, custom homes, larger homesites, acreage properties and land.
Liz Petroff helps buyers and homeowners understand the differences between Castroville-area properties, including location, utilities, taxes, restrictions, comparable sales and surrounding development.
Browse current Castroville homes for sale, save your favorite properties and sign up to receive updates when new listings become available.
Thinking about buying or selling in Castroville? Contact Liz Petroff and the Liz Petroff Group for knowledgeable, personalized real estate assistance in Castroville, Medina County and the greater San Antonio area.
Sources and Additional Information
- Texas Department of Licensing and Regulation: SAT14A Project Filing
- City of Castroville Comprehensive Plan
This article is provided for general informational purposes. Development plans, construction schedules, property information, school boundaries, utilities and real estate market conditions may change. Buyers and homeowners should independently verify information relevant to a specific property.

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