Office

HOUSTON-A Principal Financial affiliate sells the 127,568-sf telecom warehouse to Harris County after officials start talking about knocking off a corner to make way for overhead interstate lanes. The plan's taken a new twist now that $4.3-million trade's done.

ATLANTA-The 67-year-old,locally based full-service commercial real estate and mortgage firm also selects Bob Mathews as president and Caldwell Zimmerman as executive vice president in a general corporate restructuring.

WHITE PLAINS, NY-Argent Mortgage Co., which already leases more than 200,000 sf at 333 Westchester Ave. here, has signed a lease across town for 223,366-sf of space at 44 South Broadway.

HOUSTON-Pathfinder Insurance Group re-ups two years early to get expansion space in a 118,000-sf suburban office building along Dairy Ashford Road. The extra office space, though not contiguous, takes the bottom line to 9,633 sf.

NEW YORK CITY-The Sapir Organization reaps the benefits of $718 million in mortgage transactions on three of its properties--11 Madison Ave. and the facing 260 and 261 Madison.

ANNAPOLIS JUNCTION, MD-The 175-acre multi-structure National Business Parkway maintains its 100% occupancy level with the US General Services Administration's leasing of the park's newest 120,000-sf building.

SAN FRANCISCO-Allen Matkins Leck Gamble & Mallory LLP next June will move to the Boston Properties office building from 333 Bush, where its lease is up at the end of May.

LONDON-Glasgow-based LNC Property Group has paid Gerald Ronson's Heron International pounds 40 million ($70 million) for the long leasehold interest in 16 St James's St., London SW1.