The office supply in Orange County has increased 110 basis points to 19.9% in the first quarter of 2018, according to a new office report from Savills Studley. During the quarter, the availability of class-A office space increased 180 basis points to 21%, while the availability of class-B and class-C office space increased only 20 basis points 18.6%. Leasing activity also fell during the quarter with only 1.4 million square feet of office space signed, well below the long-term quarterly average of 2.1 million square feet in the market.