Assessments county-wide rose 3.4 percent over 2014 values. The 4.9 percent rise in residential values (including condos, townhouses and single-family homes) was paired with a 4.7 percent rise in the assessments of existing apartment buildings.
Dragging down both was a 4.5 percent decline in existing office property assessments. Arlington County has been struggling with an office vacancy rate north of 20 percent.