Construction is booming on new apartments and hotels in Charlotte, and experts are similarly confident that the office market isn’t likely to cool off anytime soon. JLL notes in a recent report that more than 2.3 million square feet of new office space is under construction – near the previous high in 2008 – and pre-leasing activity for new office space is brisk. Asking rents for the new office space coming to market are in the mid- to high $30 per-square-foot range, a new high for the Queen City.