San Antonio

Houston Builder Crashes Castroville Party at Flat Creek

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Published on May 18, 2026
Houston Builder Crashes Castroville Party at Flat CreekSource: Unsplash/ Tierra Mallorca

Flat Creek, a 255-acre master-planned community on the edge of Castroville, has landed another big-name builder. Houston-based David Weekley Homes is the latest company to sign on, adding more single-family options west of San Antonio and joining a growing lineup of national players already staked into the site. City officials and the master developer have been pushing forward on infrastructure and financing to support a phased buildout of the neighborhood.

What David Weekley Is Building

David Weekley Homes plans to build on 50-foot homesites at Flat Creek, with floor plans that roughly span from about 1,725 to 3,202 square feet and offer three to five bedrooms. The community is slated to include shared amenities such as a pool, playscape, sports courts and a large event pavilion. The builder also points out that Flat Creek will be served by Medina Valley ISD and sit within commuting distance of downtown San Antonio. These details come from the company’s community announcement, according to David Weekley Homes.

Builders Lining Up

David Weekley is not alone. Flat Creek already lists several national builders, including Perry Homes and Beazer Homes for more mainstream product and Toll Brothers for larger, luxury plans. The individual builder pages show a mix of lot sizes and price bands, signaling that the community is expected to deliver entry-level homes alongside move-up and higher-end offerings. Those ranges are laid out on the community pages for Perry Homes, Beazer Homes and Toll Brothers.

Developer And Financing

On the back end, city planning records identify King Fish Development as the master developer for Flat Creek. The project is structured with a proposed Public Improvement District, or PID, to help cover infrastructure costs. The Castroville meeting packet for the Flat Creek PID outlines improvement-area breakdowns and lists reimbursement bonds with maximum proceeds of $25 million. Those details are included in the city’s project documentation, according to the City of Castroville.

What This Means For Castroville

Flat Creek’s spot along Highway 90 puts the community at roughly 25 miles from downtown San Antonio, a range that tends to appeal to commuters and families who want more space and a bit of Hill Country feel while hanging on to city job access. Aggregated listings and builder information show some Flat Creek homes starting in the mid-$400,000s, with larger plans moving into the $500,000s and above. That spread reflects the mix of builders and products planned for the site, according to Homes.com.

For now, David Weekley Homes and the other builders still have Flat Creek labeled as "coming soon" and are taking names through sales lines and VIP interest lists. Buyers can register on the individual builder websites for updates on timelines and model home openings. The pace of roads, utilities and initial home deliveries will track with infrastructure phasing and PID financing as laid out in the city packet. The latest builder addition was first reported by the San Antonio Business Journal.