A judge is set to make a decision about whether popstar Katy Perry is allowed to buy a Catholic convent, in Los Angeles.

Superior Court judge Stephanie Bowick heard arguments on Tuesday (Feb 2) in the legal battle about who has the right to sell the building in Los Feliz, Los Angeles.

The Sisters of the Immaculate Heart of Mary insist they have the right to sell the property, which boasts birds-eye views of LA, to Dana Hollister for $15.5 million, but the Los Angeles Archdiocese claims the nuns' sale is not authorized.

XXX EMBED NUN v Katy

The archdiocese claims its agreement to sell the convent to the 31-year-old singer for $14.5 million is legally binding.

According to The Los Angeles Times, the judge is expected to make a decision on two motions in the next 60 days.

The 'Firework' hit maker and the church claim the nuns didn't get approval for the sale form Archbishop Jose Gomez, while Michael Hennigan, who represents the archdiocese, insists Gomez controls the institute rather than the sisters.

Katy's company Bird's Nest has also asked for the sole right to buy the building.

Read more: Nuns got a better deal insist sale of convent to Katy Perry is bogus

But a lawyer for two of nuns, John Scholnick, hit back at the two motions, saying more evidence should be gathered before the judge makes a decision.

An attorney for two of the nuns, John Scholnick, argued that more evidence should be gathered before a ruling is made.

Perry's attorney, Eric Rowen said Hollister and the sisters were attempting to stall. He told the LA Times “All they want to do is live another day."

Last July, the nuns claimed they were "being forced to violate" their vows by selling their convent to Katy.

In an email correspondence sent from Sister Catherine Rose Holzman to Archbishop Gomez from May 22, she wrote: "In selling to Katy Perry, we feel we are being forced to violate our canonical vows to the Catholic Church."

Here’s Sister Catherine Rose (87), chief financial officer, speaking to Fox: