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Police Uncover Cannabis Farm in Historic Welsh Mansion

4/11/2026

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Summary

Story summary

Police discovered a cannabis farm at Plas Glynllifon, a historic mansion in Gwynedd, Wales, on April 8.
The operation spanned about a dozen rooms on the top floor, where mature plants were found.
Authorities noted illegal diversion of electricity and water to support the grow.
The mansion, built in the 1830s, was listed for sale at £2 million in 2024 after entering receivership in 2020.

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Story summary

Police discovered a cannabis farm at Plas Glynllifon, a historic mansion in Gwynedd, Wales, on April 8.
The operation spanned about a dozen rooms on the top floor, where mature plants were found.
Authorities noted illegal diversion of electricity and water to support the grow.
The mansion, built in the 1830s, was listed for sale at £2 million in 2024 after entering receivership in 2020.