I called Davidson's representative, Tim O'Grady, who assured me that the delay is only temporary. It was due, he said, to problems with a local agency associated with the underground work being carried out. Although I was told that those issues have been resolved, I was also informed that there is a now dispute with the firm contracted to carry out that work which is halted until the dispute is resolved.
Mr. O'Grady, who at a public meeting in June of 2015 (i.e. eight months ago) told locals that the development would "be going vertical" (i.e. structures would be being built above ground) in a matter of three to four months, assured me that once the dispute with the contractor was resolved the development would then be "going vertical" in a matter of only six weeks.
Locals are particularly sensitive to delays in developments as during the recession the development was sold by one developer to another more than once during which time they were repeatedly assured that development work would be sure to start "soon". It took eight years for economic conditions to reverse and the development finally to start and local people find anything that smacks of further delay to be worrisome.