Staff: state shoreland rules cap impervious coverage at 25% to protect lakes

Oct 21, 2025

Land‑services staff reminded the board that Minnesota shoreland rules limit impervious coverage to protect ground and surface water, and explained how setbacks and lake classifications affect local permitting.

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Chris told the committee that shoreland rules and lake classifications drive many county permit requirements. "When we're dealing with, within the thousands feet of a lake, there's definite requirements in Minnesota rule 6120, and they do have caps impervious limits on those lots at 25%," he said, framing the standard as one protective measure for water quality.

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