Five Lone Tree residents are suing the city over the noise from a nearby recreation center’s pickleball courts. The residents — Mark Goodman, Richard Campbell, Donna Campbell, William Fornia and Matthew Troyer — filed a lawsuit Thursday, saying the courts at the Lone Tree Recreation Center disrupt neighbors’ “quiet enjoyment of their homes and outdoor spaces.” The residents are asking the Douglas County District Court to order the city and district to shut down the courts until they construct a “soundproof structure” around them. “(The filing residents) bring this suit to protect a public good, namely, the ability of Plaintiffs and other residents of the Community to enjoy the quiet use of their homes and avoid negative health impacts caused by unreasonable exposure to noise,” the suit reads.