When we last checked in on Century West Partners' K2LA development, the project's first 130-unit building had topped out near the intersection of 7th and Berendo Streets.  Just two months later, the landscape south of Wilshire Boulevard has changed dramatically.  Construction crews are now busy excavating former parking lots to create the subterranean garages for the project's second and third structures, located at 680 Berendo and 685 New Hampshire Avenue.  The two buildings, both designed by architect David Forbes Hibbert, are expected to open in the second half of 2014, combining to create 347 apartments within walking distance of the busy Wilshire Vermont subway station.  680 Berendo and 685 New Hampshire will provide residential amenities including roof decks, pools, fitness centers and club rooms.   K2LA is just one of several projects underway on the eastern edge of Koreatown, which is in the midst of a development boom highlighted by the J.H. Snyder Company's skyline changing Vermont Towers.  A large mixed-use development designed by the Archeon Group is also proposed at the intersection of Vermont Avenue and James M Wood Boulevard, featuring two mid-rise structures with 411 apartments and 44,000 square feet of commercial space.  However, that project remains in pre-development at this point in time.