In January, YIMBY brought you an update on the planned 10-story, 64-unit residential addition atop the existing six-story, 144-unit rental building at 707-711 West End Avenue, between West 94th and 95th Streets, on the Upper West Side. Now, Curbed has the first official rendering that shows a glimpse of the top of the structure. The project, dubbed the Haswell, will add 155,420 square feet of residential space to the property. Condominium units should average a spacious 1,905 square feet apiece, and amenities will include private and communal outdoor spaces, a reading room, and a renovated lobby. The existing, largely rent-stabilized, building will also get extensive renovations, including new windows, and will have access to 5,000 square feet of new outdoor space on the second floor. SJP Properties and P2B Ventures are the developers and PBDW Architects is designing. Completion is expected in early 2018.