Tom Brown arena, the Bob MacQuarrie recreation complex in Orléans and the baseball stadium on Coventry Road could one day be redeveloped for affordable housing, according to a new city inventory of 20 sites that are within walking distance of future light rail stations.

"With the launch of LRT, we now have a once-in-a-generation opportunity to locate a number of affordable housing projects on public lands near transit stations," said Mayor Jim Watson during his state of the city speech in January.

For the past year, a working group has been taking stock of publicly held lands within 600 metres of Stage 1 and Stage 2 light rail stations for future development of affordable housing units.

Some of the sites are contaminated former landfills and others are federally owned.

Staff divided the 20 sites into three groups based on how complicated they would be and how quickly they could be made available.

They're eyeing six sites that show the most potential for affordable housing within the next eight years:

The RCMP complex on Vanier Parkway, park-and-ride lots at Greenboro and Place d'Orléans, and several parcels around the Innovation Centre and Bayview station also made the list.

The Bob MacQuarrie complex and Tom Brown arena are seen as long-term opportunities, where the city might replace aging recreation facilities as part of bigger redevelopments.

The notes for the baseball stadium property, on the other hand, suggest the city could eventually "disengage from stadium uses."

Staff also wants to look at which community housing groups might make good partners to build the units, and figure out how to finance it all.

The staff report will be considered Tuesday by the city's finance and economic development committee.