Shrewsbury Police said they received more reports of theft and burglary in Bayston Hill on Monday.
Officers have been called to a number of similar incidents over the last week.
They said an unknown offender or offenders is forcing entry via rear doors.
West Mercia Police is warning residents to lock their doors even when at home as the majority of these incidents have been in the daytime.
Anyone with information should contact police on 101. Alternatively, contact Crimestoppers anonymously on 0800 555111 or at crimestoppers-uk.org