Drinker signed a 10-year lease at the New York tower, where listed rents run in the high $70s per square foot. Brandywine is asking rents in the mid-to-high $30s per square foot for the upper floors at One Logan.
"We remain a Philadelphia-headquartered firm, [and] in Philadelphia we'll have the same number of lawyers," said Andy Kassner, Drinker's executive partner.
Improved technology has allowed the firm, like its peers, to cut back on data centers, libraries and other common areas. The firm has also chosen to reduce the size of its lawyers' offices, while emphasizing common areas that encourage lawyers to work together.
Drinker is also planning smaller offices at its Princeton and Florham Park, N.J.. offices, for the same reasons.
By cutting back office space, Drinker can afford more space in high-traffic, high-cost markets, where large corporate clients congregate.
"If you're going to be a national litigation firm, you need to be in New York, and in California and Washington," Kassner said. "If you're going to be in government relations, you have to be in D.C. We have over a hundred lawyers in Washington. We have to go where our clients are. We go where we get the best legal talent."
Drinker is also planning to take additional space in Los Angeles.
While rents are lower in Philadelphia, the city's high business taxes take away much of the advantage over other downtown business districts, says Jeffrey A. Baker, of Cresa Philadelphia, one of the brokers who represented Drinker in the New York deal.
Contact Joseph N. DiStefano at 215-854-5194, JoeD@phillynews.com, and @PhillyJoeD on Twitter.