After climbing upwards at a snail’s pace for two years, the wooden frame of the Sony Studios-adjacent NMS@Culver City appears to be (mostly) complete.  Located at the northwest corner of Hughes Avenue and Washington Boulevard, the low-rise edifice will feature 131 rental apartments above 12,000 square feet of ground floor retail and restaurant space.  The $63 million project from locally-based NMS Properties has fallen significantly behind its previously announced development timeline, which called for the residential-retail complex to open in Spring of this year.  Now one month into Summer, the Killefer Flammang-designed building is still nowhere near ready for occupancy. Further east, construction has run more smoothly on Downtown Culver City’s two other mixed-use developments.  Greystar Real Estate Partners’ 115-unit Access Culver City has finally peeked above ground level at the corner of Washington and National Boulevards.  Across the street, steel and concrete are quickly rising at the future site of the Platform, a retail and office project from the Runyon Group.  Both project may soon be joined by 500,000 square foot development from Lowe Enterprises, which would create apartments, hotel rooms, offices and retail space on Culver City Station’s current park-and-ride lot.