Sempra Energy (NYSE: SRE) has reportedly advised the ownership of its current headquarters building at 101 Ash St., that the utility will be moving out of the building upon its lease expiration in July 2015.

Sempra officials countered that no decision has been made.

According to Jason Hughes, Hughes Marino president and CEO, Sempra is on the verge of signing a letter of intent with Cisterra Development to build a new 300,000-square-foot corporate headquarters located adjacent to Petco Park bounded by Seventh and Eighth avenues and Island and J streets. Cisterra was the developer of DiamondView Tower overlooking Petco Park.

Sempra will be returning 340,000 square feet to the market when it moves. Sandor Shapery owns 101 Ash St.