Where are the hottest markets for self-storage development? Three U.S. markets stood out when Union Realtime LLC of New York, NY released its study about who’s generating the most heat in self-storage these days: Dallas-Fort Worth-Arlington, Texas CBSA, with 7,698,747 square feet of self-storage development New York-Newark-Jersey City, NY-NJ-PA CBSA with 14,777,229 square feet Phoenix-Mesa-Scottsdale,…