THE cost of Frankston’s aquatic centre has risen $3.35 million from $46.35 to $49.7 million. Frankston Council chief executive Dennis Hovenden said the increase came when the council approved the final design and awarded the tender for its construction to builder ADCO. “One of the final design decisions by the council was widening of the main pool hall concourse, which increased the size of the building by about 1200 square metres,” he said. Australian construction company ADCO recently built the Greensborough Regional Aquatic and Leisure Centre and is completing the Hawthorn Aquatic and Leisure Centre. On Tuesday, the council announced…