There is no blanket overnight parking ban in Douglas County or Castle Rock for passenger cars. The real limits are the 72-hour caps: RVs may not sit on a residential right-of-way longer than 72 consecutive hours, and a car left 48+ hours on county roads can be tagged as abandoned.
Neither Colorado nor Douglas County prohibits overnight street parking of an operable, licensed passenger vehicle. What triggers enforcement is duration, not the overnight hour. Castle Rock Municipal Code 10.16.010.B caps recreational vehicles at 72 consecutive hours in any seven-day period on residential rights-of-way, and the county's 2025 ordinance applies a matching 72-hour/seven-day cap to RVs on public roads in designated urban planning areas. Beyond 48 hours on unincorporated public roads, a vehicle can be deemed abandoned under state law and towed.
A vehicle unattended 48+ hours on unincorporated public roads may be deemed abandoned and towed. RV overnight-into-multiday violations draw local fines.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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See how Douglas County's overnight parking rules stack up against other locations.
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