Kim Fahey was placed on five years' probation and ordered to community service for building code violations. He also has to pay $50 a month in restitution.
Prosecutors say it cost more than $83,000 to tear down the structure in March. It took four big rigs to haul away 53 tons of telephone poles and 280 tons of debris made from things like old movie sets.
Some praised Phonehenge West as a quirky example of American folk art.
Fahey had been defiant, saying authorities never should have forced him to tear down Phonehenge West. He added that his buildings are better constructed than the county courthouse he was convicted in.
Fahey said he did obtain building permits when he started Phonehenge West, but the county lost them.
The Associated Press contributed to this report.