Police are investigating large-scale damage to a building under construction on King Edward Road, Onchan.
Twenty-six ground floor windows were smashed some time between 5pm on Monday and 1pm on Tuesday.
Anybody with information is asked to ring Onchan Police Station on 675190 or Police Headquarters in Douglas on 631212.
Trial for man who denies possessing and making nearly 62,000 indecent images
Will next appear before the Court of General Gaol Delivery
Drone restrictions during Manx Grand Prix
Anyone caught could be fined up to £10,000
Offshore wind farm will deliver £2billion for the Isle of Man, claims Ørsted
'Mooir Vannin' would be built within Manx territorial waters
FBI agents among speakers at Isle of Man Financial Crime Conference
Event focusing on major investigations, emerging threats and MONEYVAL review