County records spike in septic permits and plats as development rises

Jan 29, 2026

Development Services Director Jennifer Vanderland reported a 22% increase in new septic permits and nearly 4% growth in development permits over the last calendar year; the county processed plats totaling 546 lots, including a large subdivision that split one parcel into 54 lots.

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Jennifer Vanderland, Johnson County Development Services Director, briefed commissioners on last year's permitting and plats activity, reporting a 22% increase in new and redesigned septic permits and an almost 4% rise in development permits countywide. "We had a 22% increase in septic permits in the last calendar year and then almost a 4% increase in development permits," Vanderland said, and she presented GIS visuals showing permit locations across unincorporated areas.

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