A U.K. homeowner's dampness problem became his neighbor's when he installed a drainage pipe that directed water off his roof onto the next-door home.
"Can I take this down? This is going to cause damage to my property," the neighbor asked on Reddit's r/LegalAdviceUK. "What rights do I have here?"
Here's what to know
The neighbor shared a photo of the drainage pipe, which runs straight down before taking a sharp turn to divert water onto the next-door roof.
"The side on the right with the flat roof is mine," the original poster said. "He also lifted up my leading to put his pipe under it to drain it onto my property. He did this without asking."

They added that they tried to contact the homeowner next door, but he was never home and didn't respond to calls.
What people are saying
Commenters didn't fully agree on how quickly the OP should escalate the situation.
One said they would have put up with the pipe for only 24 hours before hiring someone to remove it and bill the interloper, while another argued that such a short deadline could look unreasonable if a court later had to consider notice or repayment.
But documenting everything in disputes like these is usually a smart move.
"Tell him he is trespassing on your property. Tell him he has 7 days to remove it or you'll take further steps and get it removed. Do it in writing - not verbally," someone urged.
What can be done?
Most advice focused on sending a formal written notice and getting official legal counsel.
"Film yourself putting it through the letter box. Also phone / text / email that you've posted this letter," a commenter recommended. "At 28 days, contact your home insurance and ask to speak to their legal team."
Where can I learn more?
You can resolve neighborly or management disputes out of court, but if they remain unresolved, they can quickly turn into bigger property headaches.
• A homeowner said a neighbor's drainage system left the yard at risk of damage.
• Another resident said water runoff and drainage code concerns followed a neighbor's landscaping change.
• One homeowner said a neighbor's sump pump kept flooding the yard and worsening conditions.
• A property owner described a neighbor's invasive water line sending runoff into the garden.
• Another homeowner found chlorinated pool water draining across the yard from next door.
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