A rent reduction will be ordered only where it is found that an owner has failed to maintain a required service (Rent Stabilization Law of 1969 [Administrative Code of City of NY] § 26-514; Rent Stabilization Code [RSC] [9 NYCRR] § 2523.4). However, certain conditions are so de minimis in nature that they do not rise to a level of failure to maintain a required service. One of them is “discontinuance of recreational use [of a roof] (e.g., sunbathing) unless a lease clause provides for such service, or formal facilities (e.g., solarium) are provided by the owner” (RSC § 2523.4 [e] [19]).
The determination that discontinuance of recreational use of the roof by the tenants did not rise to the level of a required service and was thus de minimis because there was no formal facility was supported by substantial evidence (see Matter of Clarendon Mgt. Corp. v New York State Div. of Hous. & Community Renewal, 271 AD2d 688 [2000]; see also Matter of Sterling 350 Enters. v New York State Div. of Hous. & Community Renewal, 259 AD2d 621 [1999]). Concur—Tom, J.P., Saxe, Friedman, Sullivan and McGuire, JJ.