The American Institute of Architects’ latest survey reports that building design revenue topped to nearly $28 billion in 2015. According to the Institute, this surge has brought U.S. firms back to a near-complete recovery from the Great Recession, and is now allowing its leaders to reinvest profits back into their businesses.

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According to the new report, the last time we saw numbers close to this were in 2008, when net billings at architecture firms were $28.5 billion at the peak of the market. The architecture market has now almost completely recovered from the financial crash, with net billings of $28.4 billion in 2015. The residential design sector has seen an especially large increase, topping $7 billion, which is an increase of more than 30 percent since its 2013 report.