Three-Dimensional Pharmaceuticals has relocated its corporate headquarters from Exton to 20,500-sf of office space in Lower Makefield, a site conveniently located between the firm's 40,000-sf research space in Exton and its newly-expanded 42,500-sf research facility in Cranbury, N.J. The biopharmaceutical company is also planning to convert 10,000 sf of its Exton site from office to laboratory space.