Decks Permit Required
Before making any repairs, additions or modifications to a deck that is more than 16 inches above adjoining grade, you need a permit. Note: Removing, altering or repairing railings or guards is considered a modification.
If you are only replacing / repairing non-structural decking boards, you are exempt.
Be aware that even if no permit is required, any modified decks or patios must still meet current land-use regulations. The Town of Poolesville issues the Zoning Compliance Permit and Montgomery County issues the Building Permit