Mayor Walsh last week directed that $26 million in funding from the Department of Neighborhood Development, the Neighborhood Housing Trust, and the city’s Community Preservation Fund be put toward creating and preserving 515 units of housing in neighborhoods across the city of Boston, including nearly 100 in Dorchester and Mattapan.

Some of the funding is meant to preserve 56 transit-oriented affordable units in Dorchester’s Dudley Terrace, a cluster of four properties in Savin Hill and Uphams Corner developed by Dorchester Bay EDC in 2002.

According to the announcement, the properties at Dudley Terrace “will be rehabilitated to address immediate health and safety issues and critical systems upgrades.” The report added: “Through this redevelopment, the developer hopes to add additional homeless set-aside and supportive housing units.”

Money will also be used in the construction of 40 units of mixed-income housing at Morton Station Village, a 45,000- square-foot development located across the street from the Morton Street trolley station that was approved in October of last year.

The project is set to bring 31 rental units for households with incomes of 30 to 100 percent AMI (area median income) and 9 deed-restricted condominium units for households with incomes of 80 to 100 percent AMI to a site at 872 Morton St. The development will include a serenity garden to be built in honor of Steven P. Odom, a 13-year-old Dorchester boy who was shot and killed in 2007.

In total, the funding is intended to preserve 290 affordable units across the city that will be restricted to households with low, moderate, and middle incomes.

“As Boston continues to grow, we want to make sure everyone has a place to call home, no matter their income,” said Walsh in a press release.

“It’s important now more than ever that we use every tool in our toolbox to build more housing for working families in our city. This announcement is a great example of how we’re building strong partnerships in the housing community to create more affordable housing options across all of our neighborhoods.”