The news comes on the heels of the company as a whole was named one of The Best Companies to Work for in Washington State by Washington CEO magazine. It also follows a recent upgrading of the company by Salomon Smith Barney from "neutral" to "outperform."

The self-storage REIT's stock price has been tracking steadily upward since last October, when the company's share price traded for a 52-week low of $21.875. At market close on Thursday, shares were trading for $29.75, $1.50 below its 52-week high of $31.25, which came last week on June 29.

"We believe FFO growth could accelerate towards the 10% level, largely due to the elimination of dilution from on balance sheet development, and other non-operating factors, Solomon Smith's Jonathan Litt wrote in a recent research note. "However, to be conservative we are not changing our FFO growth assumptions as this time.