[6] He was also criticized for the delay in construction and the cost overrun of his El Metropolitano transportation project, whose budget multiplied, and whose completion occurred in 2010, despite the fact that its inauguration was scheduled for the year 2005.

Months after having received these accusations, the Judicial Power in charge of Nelly Mercedes Aranda Cañote, decided not to include the former mayor of Lima in the Comunicore case because the Prosecutor's Office provided sufficient evidence of the agreement with the aforementioned company to economically harm the municipality.

[6] He has also been criticized for the delay in construction and the cost overrun of his El Metropolitano transportation project, whose budget multiplied, and whose completion occurred in 2010, despite the fact that its inauguration was scheduled for the year 2005.

Months after having received these accusations, the Judicial Power in charge of Nelly Mercedes Aranda Cañote, decided not to include the former mayor of Lima in the Comunicore case because the Prosecutor's Office provided sufficient evidence of the agreement with the aforementioned company to economically harm the municipality.

The former mayor presented a Habeas corpus against this measure, but finally in January 2012, the 12th Criminal Court of Lima ordered that Castañeda Lossio must be prosecuted for this case.

[10][11] On 15 March 2013, audio recordings leaked to the press were broadcast over national television revealing that Luis Castañeda Lossio was indeed in charge of the campaign to recall Lima's first female Mayor, Susana Villaran.

[14] Following the cancellation of the Rio Verde project, one of the neighborhoods that would have been transformed (Cantagallo) was, instead, devastated by a fire in November 2016, which forced out hundreds of Shipibo-Konibo community members.

[15] As of January 2020, Castañeda remained the subject of investigations into wider allegations of corruption linked to the Brazilian construction firms Odebrecht and Grupo OAS.