Staffing issues may be playing a part in Christchurch's growing backlog of building inspections

It's taking seven weeks to get routine on-site building inspections from the Christchurch City Council.

Head of consenting, Robert Wright says demand is exceeding capacity.

Since August four inspectors have left the team, with three commencing in January, another this month and two more in May.

Wright says the buoyancy of the construction sector and timeframe pressures means competent qualified compliance staff are in hot demand.