These buildings are listed as proposed in the skyscraperpage database, but they appear to be duplicates of completed buildings:
Lincoln Property Office Tower (Dallas)
I think this is the same building as
2000 McKinney, Texas Capital Bank, which was completed in 2008.
See emporis.
2700 Elliott (Seattle)
I think this is the same as Joseph Arnold Lofts, which was completed in 2013.
See emporis.