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The blaze was reported at about 8:50 a.m. at a home located at 177 Pacheco Ave., according to district spokeswoman Sandy Wargo.
The fire was contained by 9:40 a.m. at the three-story home, which was vacant because it was under construction, Wargo said.
The home was at the top of a hill and could only be accessed by a long driveway that was protected by a gate, according to Wargo.
Painters coming to work at the home called a contractor because they wanted to get their trucks on the property, and when the contractor arrived, he walked up to the hill and saw that the home was on fire and alerted authorities.
Novato firefighters arrived on scene shortly afterward and were assisted by Marinwood, San Rafael and Kentfield firefighters who helped to extinguish the blaze, Wargo said.
No injuries were reported.
The cause of the fire is under investigation, according to Wargo, who said the team is looking into whether the blaze is suspicious.
"When you have a house under construction, you really have to dot all your I's and cross your T's," she said. "They really have to go through everything."
An estimate of the damage caused by the blaze was not immediately available, Wargo said. She said the property was worth $600,000 and the home was worth $1.5 million, but had no furniture inside.
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