Work is reportedly taking place at a site off Lawrence’s Lane, Thatcham.
On Sunday afternoon, West Berkshire Council confirmed that it sees it as a “priority” and will take “appropriate enforcement action” if necessary.
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BerkshireLive understands workers started arriving on Friday evening.
A West Berkshire Council spokesperson said: ‘We are aware of complaints of unauthorized development that took place on Lawrence’s Lane, Thatcham over the weekend.
“We are currently investigating as a priority and will take appropriate enforcement action to remedy any planning control violations identified at the site. “
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