Developer proposes five-story condo building at Washington and Cornell in Roslindale, across from smaller building he's currently putting up

Rendering by Design Resource Team.

A Burlington developer has filed plans to replace a single-family house at Washington and Cornell streets in Roslindale with a five-story, 28-unit condo building - across Cornell from where he is currently putting up an 8-unit condo building.

Developer Jon Wardwell's plans call for 12 parking spaces in a basement garage accessed via Cornell and, in a rarity for Roslindale, a roof deck, according to a filing with the Boston Planning Department.

The units would be split between 16 one-bedroom condos and 12 two-bedroom units. Four or five of the units would be sold as "affordable," to people making between 80% and 100% of the Boston area median income, according to the filing.

In addition to the roof deck, the building would have a "grass area" for resid