Head of KiwiBuild Stephen Barclay's resignation came after complaints about his behaviour

The head of KiwiBuild, Stephen Barclay, stepped down from the role after complaints about his leadership behaviour, it's been revealed.

A statement released on Monday from the Ministry of Housing and Urban Development confirmed the reason behind Mr Barclay's swift resignation.

Following a string of complaints from employees, contractors and stakeholders, chief executive of Ministry of Housing Andrew Crisp launched an employment investigation.

"The allegations reflected behaviours that are not consistent with standards expected of senior public servants," said Mr Crisp.

"I commenced an employment investigation into those allegations. While the investigation was on-going, Mr Barclay resigned."

Complaints about Mr Barclay's behaviour were related to his treatment of employees, contractors and stakeholders, and were not linked to the implementation of the KiwiBuild programme, said Mr Crisp.

Mr Crisp said Mr Barclay received no payment in lieu of notice.

As Mr Barclay's resignation is an employment matter, Mr Crisp says it would be inappropriate to comment further.

On January 18, Mr Barclay resigned with immediate effect. He had been in the role for just six months. In December, it was reported he had resigned, but this turned out to be false.

The KiwiBuild programme has drawn criticism for falling short of the first hurdle in its promise of 100,000 affordable homes in 10 years.

Housing Minister Phil Twyford admitted the programme had fallen short of building 1000 houses in the first year, saying it was "disappointing".

National's Housing Spokesperson Judith Collin says the scheme is a "failure".

Newshub.