NEW YORK CITY-SL Green Realty Corp. said Tuesday it had signednonprofit managed-care provider Healthfirst to 172,000 square feetat 100 Church St., the largely vacant Downtown office property onwhich it foreclosed this past January and subsequently acquired.Separately, the REIT announced that subtenant Wolfe Trahan &Co. had committed to a direct lease and expansion at 420 LexingtonAve.

One of the Manhattan’s bigger leases thus far this year, the20-year Healthfirst headquarters deal represents a little less thanone third of the 575,000 square feet of vacant space at the1.1-million-square-foot office property. In a release, StevenDurels, SL Green’s EVP and director of leasing and real property,notes that 100 Church “had been languishing for over five years”prior to the REIT’s commencement of a repositioning program. Headds that the Healthfirst deal is “a great validation” of theprogram.

The first fruits of that repositioning program took the form ofa 20-year, 21,965-square-foot retail lease in May by the FarberCenter for Radiation Oncology. The Farber Center’s first Manhattanlocation, it was also the first deal SL Green had signed at 100Church since taking possession of the property.