Authorities have granted Polish members of The Church of Jesus Christ of Latter-day Saints permission to build their first chapel in this country, a church worker said Tuesday.

The only other Soviet-bloc country in which there are LDS chapels is the German Democratic Republic, where there are about 5,000 members of the church.Although Polish authorities registered the LDS Church as an official religious organization in 1977, only recently were there enough Polish Latter-day Saints to warrant a chapel, said Elder Juliusz Fussek, an American sent to Poland by church leaders in Salt Lake City.

There are about 100 Latter-day Saints in this overwhelmingly Roman Catholic country, but Fussek said he sees "great prospects" for the church's development "because people are interested in religion here."

"We are very pleased with the cooperation and help we have received from the government," said Fussek, 66, a retired printer of Polish descent.

The chapel is expected to open in 1989 or 1990.