ONTARIO, CA-Vacancy increases slightly in upper-end apartments, but it remains near historic lows as population growth and limited construction boost demand. The monthly rent averages $845, up 6.3% from a year ago.

IRVINE, CA-Professional Real Estate Services Inc. of Newport Beach buys adjacent properties, which total 66,363 sf, from Colton Corp. of Irvine. The two buildings, built in1979, were about 85% occupied at sale time.

SAN FERNANDO VALLEY, CA-The Orange County-based property management firm gets an eight-building portfolio owned by the Moss Group, whose founder says he made the selection based on leasing deals he's done with Tiarna.

LOS ANGELES-A locally based buyer acquires the 26 apartments and 6,000 sf of retail space from a Los Angeles seller. The 694 S. Burlington Ave. asset has units that average 935 sf, with monthly rents ranging from $360 to $750.

HAWTHORNE, CA-The Irvine-based developer will raze a 60,000-sf industrial building to make way for Circuit City's new format store in the city's bustling redevelopment corridor. Site work begins in September and delivery is set for February 2004.

SAN FERNANDO, CA-Linzer Products Corp. will consolidate several North Hollywood locations into the industrial building, which will serve as the headquarters and primary distribution location for the painting tools and accessories inventory.

SAN CLEMENTE, CA-The Carlsbad-based marketer of surf-wear and surfboards plans to build an 80,000-sf headquarters in San Clemente Business Park on a 5.2-acre tract, bought for about $2.5 million.

CITY OF COMMERCE, CA-Medi-Pedic Bedding Co. more than doubles its space, buying the 140,000-sf building and moving into half of it as an owner-user. The balance of the $4-million purchase is rented.