The new antennas will be comparable in appearance and size, officials said. Verizon's engineers will examine whether they can still use the antenna mounts left by another cellular company, Sprint, who leased space on the building. Village officials said such a temporary installation typically wouldn't be allowed in town, but they had no major concerns after reviewing the technical drawings. Amid the tight timeline, Arlington Heights' village board Monday authorized Verizon and the office building owner to 'proceed at own risk.' They still must come back to the board and go through the plan commission public hearing process for zoning and special use approvals for the temporary installation, and a proposed permanent installation of antennas on top of the eight-story building.