So Marty Walsh says he’s going to open an illegal-alien hotel in City Hall.

There goes the neighborhood.

“If people want to live here, they’ll live here,” he said at a press conference yesterday. “They can use my office, they can use any office in this building.”

Yes, but where will they park? Will Mahhhty offer them … amnesty, from the meter maids and tow trucks?

Too bad this hack payroll patriot lifer has never gone to the mat like this for, say, homeless veterans. You know, people who actually served their country. Taxpaying citizens who were born here and don’t have their hands out 24/7.

Also notice that His Honor didn’t mention welcoming any of these Third World drifters to his own personal fortress of solitude in Dorchester. He just wants to put them up at City Hall — on our dime, not his.

Mahhhty made his remarks in the Eagle Room, which will soon be re-opening as the Auntie Zeituni Room, in honor of one of the most famous welfare-gobbling illegals to ever live here — in public housing, naturally.

“They can use this building as a safe space,” he said, and why not — countless criminals already have, for years. The difference is, the earlier generations of felons were Americans.

Maybe this slightly unhinged press conference at City Hall was just Mahhhty’s way of deflecting attention from all the other bad news, including his $150,000-a-year cousin on the city payroll. Do you think he was projecting much when he claimed the illegals were being “targeted unjustly?”

Takes one to know one, right, Your Honor?

I can’t wait for the grand opening of the new illegal hotel on City Hall Plaza — the EBT Arms they can call it. Every floor is numbered 8, as in Section 8.

Up on the ninth floor will be the penthouse — call it the MS-13 Suite. You won’t be needing any bridal suites, because none of these new guests will be married. Matrimony cuts down on the AFDC, excuse me, TANF.

That’ll be one happenin’ lobby downstairs! After a hard night of dealing fentanyl out of their trunks, the residents of the new flophouse can relax with a beer or 10 in the Uncle Omar Lounge.

Upstairs in the rooms, no chocolates needed on the pillows. Just leave an Obamaphone.

Mahhhty read a letter that he claimed came from a 7-year-old named Brian. Supposedly, he’s afraid that his mother is going to be deported. (Oddly, no mention of Brian’s father).

“I am thankful for you,” Brian allegedly wrote, “because you protect our city from a madman.”

A madman — that’s the new definition of someone who wants to enforce the law.

I’ve got some bad news for Mahhhty. The new attorney general, Jeff Sessions, who’ll soon be in charge of the City Hall corruption probe, he’s a madman too. Uh-oh. Can an American citizen seek sanctuary in the Uncle Omar Lounge? I’m asking for a friend.

Listen to Howie 3-7 p.m. weekdays on WRKO AM 680.