The Ministry of Housing and Urban Development has denied reports KiwiBuild chief executive Stephen Barclay has resigned.
NZME reported at the weekend Mr Barclay had left the role after only five months in the job.
"Stephen Barclay has not resigned," a spokesperson told Newshub.
"While he is away from the office, Brad Ward is providing operational support for KiwiBuild. The Ministry will not make any further comment."
The ministry declined to comment at the weekend, as did Housing Minister Phil Twyford.
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A spokesperson for Jacinda Ardern said it was an operational issue.
National housing spokesperson Judith Collins demanded answers over the apparent resignation.
"We always wonder if there are personal issues, in which case being told it's a personal issue would be enough explanation."
Ms Collins said if it was because of an issue around the promises of KiwiBuild - 100,000 affordable homes in 10 years - we should be told.
"This is a big Government policy. There was a lot of fanfare when Mr Barclay was hired as the head of KiwiBuild."