The buildings, nine of which are outbuildings, sheds and stables, are about a mile away from the flames. No one was evacuated.
Two other fires were ignited by thunderstorms passing through the state on Friday.
The Little Pine Fire started Friday morning about five miles southwest of Enterprise. It had burned through 1,000 acres and was zero percent contained.
The West Twin Peak Fire was ignited by lightning Friday at about 5 p.m. somewhere between Milford and the west desert in central Utah. The fire has burned 1,500 acres and was also zero percent contained.
Meanwhile, firefighters took control over another Washington County fire. Authorities reported the 2,450-acre West Mountain Fire was 100 percent contained Friday morning.
The Pyramid 2 fire has burned 60 acres was almost contained at 90 percent.
Moving north, crews also gained on the Pinyon Wildfire on the Utah National Guard's Camp Williams. The 5,771-acre blaze, which drove Eagle Mountain residents from their homes earlier this week and put Herriman on standby after it jumped containment lines Wednesday, was 60 percent contained as of Friday night.
"We're hoping some rain will come on it," said fire spokesman Kim Osborn on Friday.
Rain and cooler temperatures are also expected to help at the Faust Fire in Tooele County. In an effort to fight the fire quicker and keep the public safe, all public land and Bureau of Land Management roads near the fire were closed to the public on Friday. The 22,313-acre fire was 60 percent containment Friday, and most of the burning was concentrated inside containment lines, said fire spokesman Cami Lee.
"It's looking very good," she said.