A new environmental report offers a first glimpse of a proposed mixed-use development in West Los Angeles. Markwood Enterprises, a Beverly Hills-based real estate firm, has proposed the construction of a new residential-retail complex at the northwest corner of Santa Monica Boulevard and Barrington Avenue.  Plans filed with the city describe a five-story building that would feature 53 apartments, five of which would be set aside for very low income households.  The project would also offer six live-work units and 1,500 square feet of ground-floor commercial space. Other elements of the proposed development include a rooftop deck, a fifth-floor terrace and a ground-level amenity room.  Parking accommodations for 80 vehicles and 55 bicycles would be provided in an automated subterranean garage. Elevation plans created by architecture firm R&A Design portray a contemporary building, clad with metal, cement fiber boards and smooth finish plaster. Construction of the mixed-use complex would occur over approximately 13 months, with occupancy expected by 2018.  A one-story commercial building would be demolished for the project. A similar development is slated for a large property directly across Santa Monica Boulevard which was formerly home to a Vons supermarket.  Further west, two former automobile dealerships are making way for apartments with ground-floor retail space.