The Washington Hilton hotel is getting a massive addition. But, the ongoing construction won't result in a single new hotel room. Lowes Enterprises is building a new apartment building on the site of the Washington Hilton, which is located at 1919 Connecticut Ave NW, near Dupont Circle. Lowes was part of a group that purchased the hotel in 2007. The purchasing group renovated the entire hotel (1,070 rooms) in 2009, but Lowes is the sole owner and builder of the new 225,000 sq ft residential addition.
The new building is currently slated to have 194 rental units, a wine bar, fitness center, business/work center, rooftop recreation area, and some shared amenities with the hotel. Delivery was originally planned for 2015, but based on the eye test (this is just my personal guess), that could very well happen in 2016.