It depends upon where you live though, which determines what you can or cannot do to the "Common Property". Where I live in Reston, you MUST have prior approval by the Reston Association to modify the Common Property in any way, shape, or form (Minus taking care of it, which might include cutting grass, trimming trees, or clearing out underbrush). As a matter of fact, you need RA permission just
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Fairfax County General