First-look renderings of what will be the tallest residential building in the Western Hemisphere show a sleek monolith rising out of Midtown and nearly piercing the clouds.

The Nordstrom Tower at 217 W. 57th St. will be a glimmering skyscraper with sweeping views of the East River, the Hudson River and everything in between.

The renderings, first published on the development-news Web site New York Yimby, reveal what the building will look like from the interior and exterior.

However, a source said, the building’s design features “are still being tweaked on a daily basis.”

“The developer is so secretive that people jump whenever anything comes to light,” a source said.

Real-estate sources said that the architect firm, Adrian Smith + Gordon Gill Architecture of Chicago, did not create the renderings, and that the images may have been leaked from a marketing source for the building.

The tower itself will stand 1,775 feet tall — one foot shorter than 1 World Trade Center — and will be anchored by a 200,000-square-foot Nordstrom department store, a hotel and offices as well as condos.

The developer also plans to build a penthouse with what could be the highest outdoor space in the city.

Sources said the skyscraper will be stopping 12 inches short of 1WTC’s patriotic height of 1,776 feet out of respect.

“When we were planning the building, we decided that we were going to make it less tall out of respect,” said Nordstrom Tower developer Gary Barnett. “I can’t comment on what other developers plan to do or what our final building will be, but that was the plan.”

The roof height will be 1,479 feet, but an added spire will bring its pinnacle height to 1,775 feet.

Barnett would shed no new light on the renderings of the tower.