After personnel, real estate costs generally constitute the second-largest expense faced by many large law firms. Am Law 100 shops such as Mayer Brown and Hughes Hubbard & Reed were reminded of that this week when they inked new leases for their New York offices.

In one of the city’s biggest commercial real estate deals so far this year, Hughes Hubbard renewed a lease for 226,416 square feet of space at its downtown headquarters at One Battery Park Plaza for 20 years, according to sibling publication GlobeSt.