The building has been out of use for years
Ramsey's tram station is up and running again after several years.
Isle of Man Transport is asking people to take 'extra care' in the Parsonage Road area.
Deputy Chair of the commissioners Rob Cowell says they are 'delighted' to see it back in use because the building was a bit of an 'eyesore'.
He says the support from one of its MHKs helped in making the building usable again:
Isle of Man faces renewed scrutiny ahead of Moneyval inspection
Concerns raised over anti-money laundering effectiveness as international assessment approaches
Mobile classroom proposed for UCM horticulture compound
Application aims to reduce disruption and improve access for practical lessons
Chance to learn more about career opportunities on Island
Registration open for young adult and graduate fair
Report highlights risks of environmental crime entering financial system
Financial Intelligence Unit urges greater awareness after survey finds low preparedness across regulated sector
Peel secondary school to carry out lockdown drill next week
QEII High School says exercise is part of routine emergency planning and reassures parents no threat is anticipated