About 30 firefighters are continuing to work in sweltering conditions to dampen down hotspots at the Ahipara fire.
The blaze, which started on the evening of December 29 on a ridge above town in the Gumfields Historic Reserve, swept through 56ha of scrub and bush and forced the evacuation of up to 100 homes.
It was 90 per cent contained by mid-morning on December 30 when the number of helicopters in use was reduced from six to three.
Given current high temperatures and low humidity, however, flare-ups remain a danger.
All residents were allowed to return home on Wednesday evening but Wharo Way and Gumfields Rd were reopened to residents only, who had to show ID to get through cordons manned by police, private security guards and iwi members.