Fortress Investment Group, the New York-based firm that purchased the Westinghouse campus in Cranberry Township, refinanced the property just months after the campus was back on the market.

In a Sept. 17 mortgage agreement, recorded Friday in the Butler County Recorder of Deeds Office, Fortress agreed to a $535 million, open-end mortgage as part of its refinancing of the Westinghouse Electric Co. campus in Cranberry Woods.

Fortress did so through its CF Cranberry LLC subsidiary, which owns the property. And, in a twist, the CF Cranberry subsidiary signed as co-borrower with CF Alpha & Golf Propco LLC.

CF Alpha is, like CF Cranberry, a subsidiary of Fortress. The most recent public mention of CF Alpha in filings with the Securities and Exchange Commission is in 2019, when it sold its interest in certain properties to Broadstone Net Lease Inc.

Fortress purchased the Westinghouse campus in 2020 for $180 million, making the $535 million refinancing of the property worth three times the purchase price.

When the New York firm bought the property, it was embroiled in mystery as the prior owner, Columbia Property Trust, did not identify the purchaser. Fortress still has not confirmed publicly its purchase of the campus.

Additionally, real estate transfer tax was paid on just $145.4 million, resulting in $346,000 less flowing to Butler County — and $173,000 less in the coffers of both Seneca Valley School District and Cranberry Township — in transfer tax revenue.

The company achieved that result by purchasing not the campus, but rather an LLC that, itself, owned the campus.

Gordon Runté, a spokesman for Fortress, did not return a request for comment.