The de Blasio administration plans to beef up security at the crime-ridden Bronx public housing complex where hero cop Brian Mulkeen was killed by friendly fire during a violent struggle with an ex-con, officials said Thursday.

City Hall plans to add a half-dozen city social workers trained in gang intervention to mediate disputes and is considering installing new outdoor lighting and deploying additional officers to make the Edenwald Houses safer.

Additionally, it will also extend hours for Edenwald’s community center on Saturdays from 5 p.m. to 10 p.m., which is when it closes during the week.

“We are closely monitoring the situation, and will continue to develop a long-term strategy to ensure residents of the area feel safe and secure,” said City Hall spokeswoman Avery Cohen, who added the administration is developing a “long-term strategy” that will be introduced next month.

“This administration has made an unprecedented $300 million security investment in NYCHA, but we have more work to do to ensure that every resident feels safe in their development,” she said.

Officials could not immediately provide cost estimates for the changes.

City Hall has come under fire for not including the famously troubled Edenwald Houses in its $140 million program to bolster security at the Housing Authority’s most violent complexes.

“Edenwald Houses should’ve been prioritized for security funding in the Mayor’s Action Plan because of its long history of gang violence,” said Councilman Ritchie Torres (D-Bronx).

He also said he believes the City Council “should take a close look” at the action plan during the next budget cycle to “ensure” NYCHA “developments with high levels of violence and crime get appropriate resources and funding.”

Mulkeen, 33, was accidentally shot and killed by his partners early Sunday amid his struggle with ex-con Antonio Lavance Williams.

The cops were at Edenwald Houses investigating reports of alleged gang activity.

Williams, 27, was also killed during the confrontation.