REAL ESTATE

New Tenants Sign: Two new office towers have signed a few new tenants:

At Lakeshore Towers, Birtcher’s new 18-story building near John Wayne Airport in Irvine, Procter & Gamble’s regional sales office took 24,000 square feet, the entire 11th floor. P&G; is moving from an office tower at The City in Orange. Gladstone Public Relations, whose clients include Birtcher, leased another 3,000 square feet. Earlier, Mission Energy Co., a subsidiary of Southern California Edison Co., took 65,000 square feet. These leases and one smaller one bring the leased space in the building to 93,000 square feet. That’s still only about a quarter of the building’s 379,000 square feet of space.

Meanwhile, the new Orange County office of the San Francisco law firm Pillsbury, Madison & Sutro leased 15,000 square feet at C.J. Segerstrom & Sons’ 21-story Plaza Tower office building under construction near South Coast Plaza in Costa Mesa. The lease was valued at $5 million.

Plaza Tower is only a little more than one-third leased. IBM Corp., Segerstrom’s partner in the building scheduled to open in September, will lease about 160,000 square feet as the building’s biggest tenant.

Nearby, Bank of the West relocated its commercial banking operations into 27,000 square feet in the renamed Bank of the West Tower in Segerstrom’s South Coast Plaza Town Center. The 15-story building used to be the Central Bank Tower, but Bank of the West--a San Francisco-based subsidiary of a French banking group--bought Central Bank last year. The lease is valued at $21 million.