Arlington officials have been working to spur investment along Columbia Pike for over a decade, but now experts are concerned that new development is driving up the cost of living along the corridor and driving out the low-income residents who have lived there for years. Officials are now wondering how to have both new development while maintaining one of the county’s most significant concentrations of low-income housing.

“I don’t think there’s any given answers out there at this time,” said Ken Aughenbaugh, Arlington’s director of housing.