Riding a stretch of increasing levels of demand for thirteen out of the last fifteen months, the Architecture Billings Index (ABI) dropped in April for the second month this year.

As a leading economic indicator of construction activity, the ABI reflects the approximate nine to twelve month lead time between architecture billings and construction spending. The American Institute of Architects (AIA) reported the April ABI score was 48.8, down sharply from a mark of 51.7 in March. This score reflects…