Ordered that the amended order is reversed, on the law, with costs, and the petition is denied.
The General Municipal Law allows for the exercise of considerable discretion in determining whether to permit service of a late notice of claim ( see, General Municipal Law § 50-e). In exercising its discretion, the court must focus on whether the petitioner has a reasonable excuse for the failure to serve a timely notice of claim, whether the municipality acquired actual notice of the essential facts constituting the claim within 90 days after the claim arose or a reasonable time thereafter, and whether the delay would substantially prejudice the municipality in maintaining its defense on the merits ( see, Matter of Singh v. City Univ. of N.Y./Bronx Community Coll., 223 A.D.2d 545, 546; Matter of Farrell v. City of New York, 191 A.D.2d 698).
The Supreme Court improvidently exercised its discretion in granting the petitioner's application for leave to serve a late notice of claim. Although the petitioner initially served a timely notice of claim on the City of New York, she failed to serve the New York City Housing Authority (hereinafter the Housing Authority). She did not provide an adequate excuse for her failure to timely serve the Housing Authority, and the notice to the City cannot be imputed to the Housing Authority ( see, Matter of Martinez v. New York City Hous. Auth., 250 A.D.2d 686). Additionally, the petitioner failed to establish that the Housing Authority timely acquired actual knowledge of the essential facts constituting her claim ( see, Matter of DiBella v. City of New York, 234 A.D.2d 366).
Bracken, J. P., Copertino, Joy and McGinity, JJ., concur.