The National Capital Commission and the City of Ottawa have reached a new deal to include affordable housing in the development planned for LeBreton Flats.

A quarter of the first 800 units will be geared to households earning $54,000 dollars a year or less. Of those, 64 will be for families in the $30,000-a-year category.

That's fewer than the city had originally hoped for. But all of the units will be inside the subdivision, not at a separate site at Albert and Booth streets, as the NCC had proposed.

A spokesperson for the NCC, Eva Schacherl, says developers should be satisfied with the new arrangement.

"What's really changed is the City of Ottawa providing something called 'density bonusing,' which allows for a slight increase in the number of market-value units.

"So there's an incentive that, for each low-income unit that's built, they can add on another market-value unit. So it's sort of, the market value subsidizes the low-income housing," Schacherl says.

The NCC is currently taking bids from developers for the first phase of the LeBreton Flats development.

Their proposals will be made public by the end of October.