Court Denies Developer Motion in River Rock Trails Subdivision Dispute

D.R. Horton-Texas, Ltd. and DMDS Land Company LLC failed to win a pretrial ruling on their claims against Rockwall County after the 382nd District Court denied their Amended Motion for Partial Summary Judgment in the River Rock Trails subdivision dispute.

Rockwall County posted the court's ruling March 31, citing it as a procedural win that preserves the county's legal positions. The lawsuit, filed in July 2025, pits the two development companies against Rockwall County and several of its officials over whether the county lawfully required developer-funded contributions for roads, water systems, fire protection, and policing capacity before granting preliminary plat approval for River Rock Trails, a multi-phase residential project planned in unincorporated southern Rockwall County.

D.R. Horton and DMDS have argued that those conditions exceed what Texas state law permits and place disproportionate financial obligations on property owners who hold statutory rights to plat and develop land. The county has countered that requiring developers to fund their proportionate share of new infrastructure protects existing taxpayers from absorbing the upfront costs of growth.

By denying partial summary judgment, the 382nd District Court declined to resolve any of those competing legal theories before the full case moves through discovery and trial. Both the federal- and state-court components of the litigation will continue under the ordinary scheduling and motion process.

If River Rock Trails proceeds as planned, it would bring hundreds of homes to southern Rockwall County across multiple phases, each carrying its own infrastructure and public-safety obligations. That scope means any eventual resolution, whether through a court ruling, negotiated settlement, or change in state law, could influence how other rapidly growing Texas counties structure developer contribution agreements going forward.

Upcoming docket entries, including potential dispositive motions, scheduling orders, or mediation notices, will offer the next indication of how quickly the case moves toward resolution.