FEDERAL REAL PROPERTY: GSA Should Better Target Its Use of Swap-Construct Exchanges, GAO-14-586. Published: Jul 24, 2014. Publicly Released: Aug 25, 2014: “The swap-construct approach can help GSA address the challenges of disposing of unneeded property and modernizing or replacing federal buildings, but various factors could affect future use of the approach. For example, swap-construct can require developers… Continue Reading