A police spokesperson said - following the fire - a woman was “assisting police with our inquiries” in relation to the suspicious blaze.
A 35-year-old woman has since been remanded in custody on charges of arson and is due to reappear in the Hastings District Court next month.
A neighbouring unit was not damaged by the fire on Monday, but occupants living inside that home evacuated due to the smoke.
There have been a concerning number of building fires in Hawke’s Bay of late, including 28 recorded in the month to August 28.
Gary Hamilton-Irvine is a Hawke’s Bay-based reporter who covers a range of news topics including business, councils, breaking news and cyclone recovery. He formerly worked at News Corp Australia.