The blaze was next to a dog daycare facility - the only one on Waiheke.
Its owners took to Facebook late last night thanking the community for reporting the incident to them, so they could check on their own property.
"Thank you to this wonderful community. The fire reported...was next door to The Dog Depot and very close. We are thankful that our premises has not been damaged by the fire.
"I understand everyone who lived next door got out safely. Thanks again to everyone who alerted me - friends and neighbours. You made a big difference.''