• jaybone@lemmy.zip
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    1 hour ago

    Is this requirement mainly due to drainage or something else? (I’m guessing “just to make things look nicer” isn’t why?)

    • Dettweiler@lemmy.dbzer0.com
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      1 hour ago

      It’s a combination of drainage and allowing some rainwater to flow into the water table. If I recall correctly, areas with limestone aquifers are going to require more permeable space.