Toronto Mayor Rob Ford is slamming an ambitious $30-billion transit plan proposed by the chair of Toronto Transit Commission, arguing it will cost taxpayers too much.

Ford told reporters Wednesday that the plan floated by Coun. Karen Stintz, which envisions the construction of six subway lines, 10 light-rail lines and five bus and streetcar lines over 30 years to transform Toronto's transit system, came as a surprise to him.

"I will not and cannot support the plan. The taxpayers can't afford it. That's the bottom line," he said.

"You can't always go to the taxpayers for everything and that's what it seems like this plan looks for. There's a private sector out there that can get involved."

The plan, called OneCity, would be funded through an increase in property taxes and financial aid from the province and the federal government.

"Too often we've been talking about transit lines without a funding mechanism," Stintz told CBC's Metro Morning.

The OneCity funding plan, co-authored by TTC vice-chair Glenn De Baeremaeker, calls for the province to change the existing legislation and allow the city to collect more revenue after Toronto homes have their property values reassessed in the fall. That money would be dedicated specifically to the OneCity plan.

"The reassessment process occurs every four years," Stintz said. "This fall [the Municipal Property Assessment Corporation] will reassess all municipal properties and we expect that those properties will go up by about five per cent."

Rule change needed

But the Ontario Finance Ministry noted Wednesday that existing provincial legislation forbids municipalities to take in more revenue from increased assessments.

Under current rules, any property tax increases that the city would want to levy would have to be tabled separately and then go through council's budget process and be voted on in the new year.

Karen Stintz and Glenn De Baeremaeker outline their OneCity plan at Toronto City Hall. (Patrick Morrell/CBC)

But under Stintz's plan, the city wouldn't have to wait for that process to unfold — it could simply take a portion of the tax assessment increase and apply it to transit expansion.

Ministry spokesman Scott Blodgett said the province is "interested in hearing more details about this proposal," but said the city could simply increase property taxes on its own, without provincial assistance.

"If Toronto would like to increase property taxes to fund transit expansion, taxpayers should have the information they need to understand why and by how much their taxes are increasing," he said.

Ford doubts councillors' estimates

Based on an estimate of $427,085 as the average value of a home in Toronto, the councillors say the cost to the owner would amount to an additional $45 per year, adding up to $180 starting in 2016, which will yield an additional $272 million. But that doesn't include any other possible tax increases over the years.

"It would be equivalent to a 1.9 per cent increase in property tax," she said. It would be part of the reassessment process.

"That's the proposition we're taking to residents. Our proposal is that we study this initiative over the next several months and in October report back on whether it is a viable plan for funding transit and whether there is broad [public] buy-in," she said.

Ford expects taxpayers to pay much more than what's detailed in the plan.

"I haven't seen a house sell in Toronto for $400,000 for a long time," he said. So I like I said, you could almost double that. The average is probably seven or eight hundred thousand dollars."

Stintz and Ford, once allies on council, did not speak directly about the plan — Ford said Stintz briefed his chief of staff Amir Remtulla on Tuesday that a plan was being put forward, but she didn't offer any specifics. The two had a very public falling out after Stintz opposed Ford on a plan to bury the Eglinton LRT line and build a subway line on Sheppard Avenue East.

She recently said at a breakfast event hosted last week by CBC's Anne-Marie Mediwake that "working for the Ford administration was the first time in my life I absolutely felt an inability to communicate with a group of men."

Senior governments would have to pony up

The plan requires similar amounts to be contributed from Ottawa and Queen's Park to provide $1 billion per year over the next 30 years to fund the project.

Minister of Transportation Bob Chiarelli said that the public needs to come to a "community-wide consensus" on the future of Toronto's transit system due to the high cost and infrastructure changes proposed in the plan.

Councillors react Coun. Doug Ford: "This is going to be a tax on every business in the city, it’s going to be a tax on every renter in the city, and it’s going to be a tax on every resident in the city."

"This is going to be a tax on every business in the city, it’s going to be a tax on every renter in the city, and it’s going to be a tax on every resident in the city." Coun. Michael Thompson: "I'm appalled, actually, that the mayor's office has not been consulted on this particular very important issue."

"I'm appalled, actually, that the mayor's office has not been consulted on this particular very important issue." Coun. Adam Vaughan: "Anybody that stands up and says that they want to make a difference, they want to make a stronger Toronto, is going to be a potential mayoralty candidate."

"There is a big ask in terms of financial contribution," he said. "They are asking for us to amend legislation to enable property tax increases.

More information is needed before the public can make an informed decision about it, Chiarelli said.

"Certainly we haven't seen all of the details," he said. "We didn't have access to those documents previously, but they are asking for an additional $10 billion from the provincial government."

Chiarelli said the cost would be in addition to the $8.4 billion the provincial government and Metrolinx have already committed to transit projects in the city.

Meanwhile, the president of Metrolinx, the provincial agency charged with overseeing transit in the Greater Toronto Area, issued a statement saying he welcomes the proposed plan.

"Metrolinx views as a positive development the fact that this proposal recognizes new investment will be an important component of any successful expansion of transit infrastructure," said Bruce McCuaig. "We also welcome its recognition of the need for the federal government to be an equal funding partner."

City council will be asked to approve a study of the plan in July and vote on it in October.