Courtney Love Facing Eviction -- You Set My Pad ON FIRE!!

Courtney Love could be out on her ass in NYC -- because the owner of the luxury NYC townhouse she rents believes the rocker set the place on FIRE ... and wants to evict Love ASAP.

According to the owner, the "landmark luxury 4-story townhouse in Manhattan's West Village" was custom designed by a famous architect and interior designer ... and Love agreed not to mess with anything inside the place without permission.

But the owner says Love totally blew off the agreement ... repainting the place and wallpapering over the "glazed hand-brushed walls."

And then there was the fire ...

The owner claims the local Fire Department responded to a blaze in the 4th floor bedroom back in June in which curtains and bed linens went up in flames. But the owner claims there are burn marks throughout the pad ... and believes there's a possibility the entire structure may have caught fire.

The owner also claims Love has fallen WAY behind in rent ... to the tune of $54,000.

Now, the owner is looking to evict Love, stat ... claiming it's gonna cost $100,000 to restore the place back to it's original state.