(RECAP: Construction has started on Columbia Hills Apartments, one of the first projects to be developed on Arlington County’s Columbia Pike Neighborhoods Plan, which has a goal of preserving 3,000 affordable homes along Columbia Pike. The Arlington Partnership for Affordable Housing (APAH) development will include 229 units, all affordable to low-income households earning 60 percent of area median income (AMI). The AMI is $109,200 for a family of four, which means the household would qualify with an income of $65,520 or less. Ten of the units will be reserved for households below 40 percent AMI, and 39 units will be reserved for households earning below 50 percent AMI. The $91 million project is funded by federal low-income-housing tax credits, the Arlington County Affordable Housing Investment Fund, the Federal Home Loan Bank of Atlanta and the Virginia Housing Trust Fund.)