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Commission approves Asunción (Ascencia) Phase 3 plats; commissioners set condition to delay home permits until Avenida Del Sur is complete and reanalyzed
Summary
The Board approved preliminary and final plats for Asunción/Ascencia Phase 3 (118 lots) and included a condition that no building permits for future phases will be issued until Avenida Del Sur is complete and a reanalysis of traffic is conducted; neighbors raised dust, stormwater and access concerns.
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The Board voted May 13 to approve preliminary and final subdivision plats for Asunción (also referred to in staff material as Ascencia) Phase 3 (subphases 3A and 3B), a 118‑lot segment of a larger 277‑acre, multi‑phase community. The developer and engineers described the phase as part of a larger buildout that includes single‑family lots, alley‑served townhomes and a community park; staff recommended approval with standard conditions.
The Nut Graf: Commissioners approved the plats but added a condition addressing broader transportation sequencing: the developer agreed that, for future phases, the county will not issue building permits for residences until Avenida Del Sur is complete, operational and the county has reanalyzed traffic with the completed roadway in service.
In the hearing, the applicant’s traffic consultant presented updated intersection modeling that showed acceptable levels of service for the intersections analyzed under the phase‑3 build scenario. County and developer engineers discussed a longer‑term intersection at Avenida Del Sur and Rancho Viejo Boulevard; staff and outside commenters said either signal optimization or a roundabout could be needed if regional buildout produces higher traffic volumes.
Public comment: Nearby residents urged better dust control and faster responses after heavy rain events; a nearby resident said recent rain caused a stormwater control breach that flooded his property and asked for faster remediation and clearer construction controls. Developers acknowledged the breach, described on‑site repairs and said construction crews deployed BMPs (silt fence, wattles) and water wagons to minimize dust and erosion; they told the Board that hydrant‑pressure issues that limited dust control were resolved.
Condition added by commissioners: To address uncertainty about how Avenida Del Sur will change travel patterns, commissioners added a permit‑sequencing condition: no building permits for future phases may be issued until Avenida Del Sur is 100% complete and the county has evaluated traffic with that new roadway in service. The developer said it will continue to contribute to design and work with the county on Avenida Del Sur, and that standard financial guarantees will cover infrastructure required for approved phases.
Ending: Commissioners directed Public Works to meet with adjacent landowners to address driveway access, right‑of‑way questions and interim traffic enforcement and to return to the Board as needed on the Avenida Del Sur sequencing question.

