LAOCDB reported about the Irvine Spectrum Marriott back in July 2015 when it was first proposed at the site of a former surface parking lot. Photo from June 25, 2016 show construction has progressed with the installation of a construction crane. Additionally, the core of the structure is rising.
R.D. Olson Development is constructing the upcoming 14 story hotel (169 feet and 6 inches) which will have a total of 271 hotel rooms and over 9,000 sq ft for meeting and pre-function space. Amenities to the hotel tower include 2,000 sq ft fitness center, large rooftop terrace, large event lawn, pool and spa, restaurant, and bar & lounge. The architect of the project is WATG:
It is possible to follow the progress of the Irvine Spectrum Marriott via construction webcam from oxblue.com: Link: oxblue.com/open/rdolson/irvinespectrum