A proposed stadium deal that would stand as Jacksonville's biggest investment ever in being an NFL city got its first public airing Tuesday when Mayor Donna Deegan and Jaguars President Mark Lamping gave City Council members highlights of the agreement.

The city would pay $775 million of the $1.4 billion of work done at the stadium, or 55% of the tab. The taxpayer share of the work would be less than recently enacted stadium deals for the Buffalo Bills and Tennessee Titans, though in the case of those two franchises, state and local government teamed up to finance the taxpayer portion.

The state of Florida doesn't subsidize stadium deals, so the city of Jacksonville is on its own for the taxpayer part of the expense for the stadium.

The financing for extensive renovations and a 30-year lease agreement still must win City Council approval and then get backing from at least 75% of NFL owners. It would be the most pivotal deal between the city and the Jaguars since the Jaguars started playing in 1995 because the team's current lease to play in Jacksonville at EverBank Stadium ends after the 2029 season.

"This is our opportunity to meet a moment," Deegan told City Council. "I believe in Jacksonville. I know you believe in Jacksonville. The Jaguars have shown they do, and I don't believe this is time for half-measures on our part. This is the time to determine the city that we want to be."

Here are some key terms of the proposed deal hashed out after months of negotiations between representatives of Deegan and the Jaguars.

City foots 55% of the $1.4 billion cost of stadium work

The stadium renovation construction itself will cost about $1.25 billion and that will be split 50-50 between the team and the city, or $625 million apiece.

In addition, the city will pay $150 million to make repairs on existing portions of the stadium before renovations start, ensuring the parts of the stadium that are retained in the renovation will be in good shape.

When those expenses are all added up, the city's total cost of the maintenance upgrades plus the new construction for the renovation comes to $775 million, or 55% of the $1.4 billion project.

If the renovation has cost overruns, the Jaguars would shoulder the full cost of paying them.

In comparison, the deal for a new stadium for the Buffalo Bills had a projected cost of $1.4 billion when it was finalized. The state of New York put up $600 million and Erie County committed $250 million for a total taxpayer share of nearly 61% of the cost.

In an agreement with the Tennessee Titans for a new $2.1 billion stadium, the state will pay $500 million and the Metropolitan Sports Authority in Nashville will pay $760 million, so the government's share will be 60% of the cost.

The Titans and Bills also agreed to absorb the cost of any cost overruns.

Lease would be for 30 years

The Jaguars would agree to keep playing their games at EverBank Stadium for a 30-year lease term. The 30-year length has been a standard length of leases at government-owned stadiums in recent NFL stadium deals.

The city and Jaguars would have a "nonrelocation agreement" for keeping the team in Jacksonville for the full 30 years. That agreement, which other NFL teams also have, would spell out specific financial damages the Jaguars would pay if the team were to move before the expiration of the lease. The city did not immediately give details for how the amount of damages would be calculated.

Construction would force games out of Jacksonville for just 2027 season

The Jaguars still would play home games at the stadium in the 2026 season, though the seating capacity would be reduced because of work on the stadium's upper bowl. Then in 2027, all Jaguars home games would be played elsewhere.

Originally, the Jaguars said last summer it looked like the stadium would have to be off-limits to games in both the 2026 and 2027 seasons in order to finish the work in time for fans to see games again at the revamped stadium starting in the 2028 season.

But as the city and Jaguars worked through the negotiations and got analysis from construction experts, they decided to limit the complete loss of home games in Jacksonville to just the 2027 season.

The Jaguars have not said where they would play games in 2027. The University of Florida's Ben Hill Griffin stadium in Gainesville and Camping World Stadium in Orlando are two possible venues.

Jaguars would be able to keep playing one home game a year in London

The agreement would give the Jaguars the option of playing one home game a year in London, continuing the team's adoption of London as a second home for its fanbase. Lamping said the current lease agreement with the city doesn't place any limits on how many home games the Jaguars play in other cities.

"We will have the option — not the requirement — to play up to one home game a year" in London, Lamping said.

Lamping said the Jaguars also would be able to consider any request by the NFL to play a second home game away in a season as part of the league's international series that schedules regular-season games in London, Germany, Mexico, and Brazil.

Lamping said the NFL currently can ask all 32 teams to move a game away from their home market once every four years to fill out the rotation of teams.

"They have not asked us to do that yet," Lamping said. "We have shown the inclination to play more than one (international) game in the past, and this certainly creates a floor that there will never be fewer than seven home games (in Jacksonville) each year. In all likelihood, there will be more."

The stadium design mirrors what Jaguars presented last June

In response to long-running complaints from fans, the renovated stadium will have a roof that gives shade protection from the broiling sun in early-season games and shield fans from rain. It will be a fixed roof.

A “first-of-its-kind mirrored material” would wrap the stadium and double as an energy-efficient facade. The stadium would not have air conditioning, but the material used in constructing the building would cut heat retention by 70% and lower temperatures by 10 to 15 degrees, according to past presentations by the Jaguars. The renovation would open four corners of the stadium so air flows through the breezeways for circulation inside the stadium.

The stadium would have capacity for 62,000 fans for Jaguars games and could expand to 71,500 seats for college football games, plus more capacity for concerts. The capacity now for Jaguars games is about 67,000 fans and that can go up to 77,000 for a college game.

Other renovations would add lighting and digital technology, dozens of elevators and escalators, wider concourses throughout and make the upper concourse circle the entire stadium.

The design: Jaguars unveil "stadium of the future" whose cost could hit $1.4 billion

Other NFL cities: Stadium deals in Buffalo and Nashville show how Jacksonville agreement could be shaped

Jaguars and city would do $300 million in "community benefits"

The Jaguars would agree to spend $150 million over the long term improving neighborhoods and affordable housing and helping residents with programs such as workforce development.

The city would match that with $150 million for work such as neighborhood development and for a series of riverfront parks from Riverside Plaza to Shipyards West and on to Metropolitan Park. Shipyards West and Metropolitan Park are in the vicinity of the sports complex and are on the same stretch of riverfront where Jaguars owner Shad Khan is building a Four Seasons Hotel and Residences. The proposal also would work on converting the flex field in the sports complex.

Deegan has said the riverfront parks are a high priority for her as a destination for residents and a spur for downtown development.

Some of the programs would be citywide and other spending would be targeted toward the Eastside neighborhood that is across the Mathews Bridge expressway from the sports complex.

Financing arrangement

The financing would keep the Better Jacksonville Plan's half-cent sales tax in effect until the end of 2030 rather than having it expire at the end of 2026.

By keeping the revenue flowing from the Better Jacksonville Plan's tax for construction of road work, the city would be able to pay in cash for Better Jacksonville Plan road projects that currently are slated for borrowing to pay for them. By using cash rather than borrowing money for those projects and similar projects, the city would free up about $600 million in borrowing capacity for stadium renovation work.

Keeping the Better Jacksonville Plan's tax intact through 2030 would push back when a separate half-cent sales tax for paying down the city's massive pension debt kicks in. That tax for covering the city's pension obligations was always slated to start immediately after expiration of the Better Jacksonville Plan tax.

The longer it takes for the city to fully fund its pension obligations, the more it will cost the city in the long run because the pension funds use the city payments for investments that generate additional income for paying pension checks to retirees.

When voters approved the half-cent sales tax for pensions in 2016, city leaders told them the tax would start after the Better Jacksonville Plan expired in 2030.

This article originally appeared on Florida Times-Union: Mayor Donna Deegan, Jacksonville Jaguars outline stadium renovation