Construction continues at FedEx’s Memphis control tower.

A building permit valued at more than $420,500 was filed Thursday, April 6, for renovations to the building’s third and fourth floors. The site address was listed as 2903 Sprankel Ave., and Grinder & Haizlip Construction Inc. was recorded as the contractor.

In January 2017, a $2.8 million permit was submitted for the same address for “renovation to FedEx air traffic tower.”

When asked about the construction in January, a spokesperson…