The Edge hit this momentous milestone back in December. After several years of sales, all 565 condos finally sold, but that's not the end of activity at the Edge. We're still waiting on that third tower, and dozens of units have come onto the market as rentals.

With only six units, perhaps we should have expected this long-awaited Greenpoint development to go fast. We heard that almost 250 prospective buyers showed up for the building's opening, and that there were 15 offers on that first night, more than double the number of apartments on offer.

Oro was one of the best-selling building of 2012, and the DoBro condo sold out just a few weeks ago. The first of the building's 303 units came on the market back in 2007, and post-crash, Oro had a pretty successful rent-to-own program that resulted in 20 buyers. Currently, StreetEasy shows seven active resale listings and rental.

Despite its issues (for one, the much-berated kitchens), Mexican starchitect Enrique Norten's 17-unit Park Slope controversy magnet sold out in December. Its futuristic name, Garfield Sparta, hints at its Miami-eque vibe. Fun fact: Norten's original idea to put three townhouses in front of the glassy 17-condo unit was shot down by the city.

Brownstoner has been cataloguing the progress of the eco-friendly Third + Bond condo since it was first planned back in 2007, and just yesterday, they announced that all 44 units in the building are sold and closed. The building was developed by Hudson Companies and designed by Rogers Marvel Architects. StreetEasy lists the average sale price at $777,000.

It took more than five years, but Twenty9th Park Madison hit 100 percent sold in January. According to StreetEasy, the 142-unit building has two active resales, a studio listed for $825K and a one-bedroom asking $1.6M. There area also four active rentals, ranging from $5,400 to $8,000/month.

The Central Harlem development had to resort to a pretty base tactic to get some units sold. A few years back, Beacon Towers was essentially doling out $8,000 in cash given to buyers who signed on the dotted line by a certain date. The eight-story co-op with 73 residences finally cleared out its stock in September of 2012.

This 72-unit Bed-Stuy condo building sold out in early December. Sales launched in 2010, and the apartments range from studios to two-bedroom duplexes. A handful of units have been pushed back onto the market as rentals over the last few years, but currently, there's only one available unit: a two-bedroom asking $2,800/month.

The last unit at 2 Northside Piers, a penthouse, is now in contract, so that puts the 181-unit development practically in the sold out column.

Nursing home-turned-condo the Abingdon had no trouble finding interested buyers for its sprawling, ultra luxury homes. One way the building enticed richest of the rich? A fourth-floor model unit jam-packed with super cool, super expensive furniture and art—including a taxidermic fox.

Harlem Bespoke reports that the 13-unit building at 5 West 127th Street sold out without ever holding an open house. Sales started last July and 40 percent of the units received offers in the first month.