The "huge exercise" of revaluing Christchurch's earthquake-hit properties will start next year, with the city council expecting a significant increase in challenges from dissatisfied residents.
The Christchurch City Council said yesterday that it had awarded Quotable Value the tender to do a citywide revaluation late next year.
The valuation will be the first since the city's devastating quakes after a scheduled 2010 review was delayed because of the September 4 quake.
The council is required to regularly value all properties in the city, with rates charges allocated based on the valuations.
Council corporate services manager Paul Anderson said the task would be more difficult than a normal valuation because of the impact of the quakes.
"This is going to be a huge exercise," he said.
"You can imagine with some of the new zoning in Christchurch, things like TC1 [technical category 1] versus TC2 versus TC3 – that's going to influence the way we carry out our inspections and valuations."
Red-zoned residential land could be exempt from the valuation process because of uncertainty about the future of government-owned properties.
"If the land changes to reserve or non-rateable land, that will have an impact," he said. "We're going to have to wait and see what the Crown decisions are before we treat it from a rateable perspective."
While less than 1 per cent of valuations were normally challenged, Anderson said the number of objections to the new valuations was likely to be higher because of the level of public interest.
QV would inspect 50 per cent of the city's residential properties and 70 to 80 per cent of commercial and industrial buildings in the six months before it set the valuations by December 2013, Anderson said.
The new valuations would be in place for the 2014-15 rating year after a six-week objection period.
The city's rating valuation services had been managed by GEM Valuation since 2002.
Anderson said QV won the contract based on price and its experience as the country's largest provider of rating valuation services.