City officials are effectively shutting down the East Baltimore motorcycle clubhouse that was torched last week in what police believe to be an act of retaliatory street violence.

Tensions had escalated between neighbors in the Oliver community and the bikers who rode in to the old brick warehouse at 1301 N. Spring St. Then gunfire erupted last week outside the clubhouse. Six men and one woman were shot and wounded. Another man, Anthony Martin, who lived in the neighborhood, was killed.

Three days later, someone set fire to the clubhouse overnight. Investigators have confirmed the fire was arson, a police spokeswoman said. The clubhouse was likely torched in retaliation for the shooting, police have said.

Now, officials are prohibiting the bikers from returning to the clubhouse without permission. Inspectors are to issue a vacant building notice for the brick warehouse Thursday, said Tammy Hawley, Department of Housing and Community Development spokeswoman. That means no one may legally occupy the building without first obtaining a city permit.

The vacant building notice also gives officials authority to fine the property owner for outstanding citations, monitor repair work, and send the property into foreclosure and receivership if needed. State tax records list the warehouse as owned by Oscar Alfredo Portillo, of Prince George’s County. He has not returned a message.

State business records show at least two motorcycle companies have been registered at the address. TB Aberdeen Motorcycle Club Inc. was forfeited last year. Moon’s Motorcycle Transport LLC has been there for two years. Both businesses were registered to Carlton Shaw, of Joppa. Reached by phone last week, he denied involvement with the motorcycle club before hanging up.

A sign on the light post out front resembles the symbol of the Black outlaw motorcycle club Thunderguards MC. Neighbors simply knew it as the bike club and said crowds of motorcycle riders came in on Sundays to hold parties and other events. Biker events there have also been shared on Facebook.

The building sits on a small side street beside a basketball court, new tennis courts and the Calvin B. Scruggs Sr. Park. The community used the courts and park. The bikers sometimes put out cones to shut down the street and refused to let people walk through, neighbors said. They said the situation was headed toward a breaking point.

Police have announced no arrests in the shooting. They said ballistics recovered from the scene show 10 guns had been fired.

During a community meeting Thursday, Maj. Jai Etwaroo called the shooting the most traumatic act of violence he’s seen as commander of the Eastern District.

The fire also caused smoke damage to the nonprofit Natural Born Champions that operates out of the warehouse next door to the motorcycle club. The nonprofit runs camps, before- and after-school programs, tutoring and mentorship for city children.

This story may be updated.