Fewer homeowners in Tarrant, Parker, Wise and Johnson counties fell behind on their mortgages in November, the latest data from the CoreLogic research firm shows.In November, 4.63 percent of mortgage holders were at least 90 days delinquent on payments, down from 4.66 percent in October, CoreLogic said.It is the lowest percentage of mortgages under water since January 2010, when the delinquency rate rose to 6.31 percent, according to CoreLogic.Mortgage holders at least 90 days behind on payments were 4.04 percent in Texas and 6.45 percent in the U.S. in November.Heavy construction contracts up in 2012Nonresidential construction contracts for future work in North Texas fell 12 percent in December but finished up for the year, McGraw-Hill Construction reports.Contracts awarded for commercial and heavy construction projects totaled $3.9 billion for 2012, up 6 percent from 2011.Contracts for residential construction saw a huge increase, up 44 percent in December, to $542.6 million. In 2012, residential contracts totaled $6.8 billion, up 28 percent from $5.3 billion in 2011.In Texas, slightly more than $1 billion in commercial construction contracts were awarded, up 5 percent from December 2011. Residential building contracts totaled $1.6 billion, up 29 percent from a year ago.Last year in Texas, $22.7 billion in residential contracts were awarded, up 28 percent, from $17.7 billion in 2011.Alliance office building soldAlliance Commerce Center 14, a two-story office building, has been sold by an institutional investor advised by J.P. Morgan Asset Management to an investor group, the CBRE brokerage reports.The 72,772-square-foot building, at the north end of Alliance Airport and about a half-mile west of Interstate 35W, is fully leased.Gary Carr, Eric Mackey, John Alvarado and Robert Hill of CBRE represented the seller.Transactions4025 Park Springs Blvd., ArlingtonFrasier Healthcare Consulting has leased 2,932 square feet at Park Springs Place. Kurt Cherry and Brittany Ricketts of PM Realty Group represented the landlord, 4025 Park Springs Associates L.P. John Pollock of ReMax Pinnacle Group represented the tenant.4900 Augusta Road, Fort WorthLegacy Housing has bought a 50,000-square-foot building. Todd Hubbard of NAI Robert Lynn represented the seller. Steve Crawford represented the buyer.14500 Trinity Blvd., Fort WorthBIS Tepsco has leased 8,520 square feet of office/warehouse space. John W.B. McDaniel of NAI Robert Lynn represented the tenant.2550 Glendale Ave., Fort WorthCommodity Recycling Solutions has leased 6,000 square feet of office/warehouse space. Chris Stewart of Coldwell Banker Commercial represented the landlord, STP Holdings Llc. Tony Schifano of Schifano Realty Group represented the tenant.5801 Curzon Ave., Fort WorthThe Center for Therapeutic Change, a private and group counseling center, has leased 2,750 square feet in Curzon Corners Center.Dick Myers of Coldwell Banker Commercial Searcy Vasseur Group represented the landlord, Finikunda.512 Fifth Ave., MansfieldThe firm 812 5th Avenue Llc. has bought a 140,000-square-foot building.Michael Newsome, Todd Hubbard and Tom Lynn of NAI Robert Lynn represented the seller. Scott Delphey of with CB Richard Ellis represented the buyer.8400 Western Hills Blvd., White SettlementCrimson Chemicals has leased 2,145 square feet for a headquarters. Dick Myers of Coldwell Banker Commercial Searcy Vasseur Group represented the landlord, CREI.