Dan Rather will be reporting from a new space.

The veteran journalist is moving to an 18th floor perch at 1180 Ave. of the Americas. The 4,479-square-foot rectangular pre-built has windows on three sides but tucked away from the avenue noise.

“Dan Rather Reports” now airs on AXS TV, which is owned by a group that includes Mark Cuban and Ryan Seacrest.

Rather was represented by John Moran of Newmark Grubb Knight Frank, and will be moving from his current office at 130 W. 42nd St. to the new space on April 1.

Garett Varricchio, his brother Bret Varricchio, and James Tamborlane of MHP Realty Services represented the building, which is owned by a partnership with the Chinese company, HNA.

“We are thrilled to welcome such an iconic American journalist to the property, and this lease brings the building to full occupancy,” said Garett Varrichhio. Asking rents for future availabilities range from the high $50s to $65 per foot and other tenants include the Scripps Food Network.

Downtown offerings are starting to multiply. Post colleague Steve Cuozzo reported earlier this week that the office building at 55 Broad is now in contract to sell for $157 million, while we told you the vacant land at 45 Broad is on the market while the Rudin Organization is seeking to redevelop the building next door at 55 Broad.

Now, two residential buildings and a development site are also available as some owners want to take cash off the table for redeployment while others want to jump in with fists filled with dollars for bricks.

The 42-story luxury residential building at Tribeca Pointe, the tallest residential building in Battery Park City, is now being offered and could sell for more than — hold your breath — $300 million.

The 80/20 rental incorporates 340 market rate and rent-stabilized apartments in 285,000 square feet. It towers on the edge of the Hudson River and has commanding views of the entire harbor and downtown area.

Developed by Rockrose, the company has now hired Woody Heller, Will Silverman, Eric Negrin and Daniel Parker of Studley to market it, with an eye on a new owner who could keep it a rental or convert the 80 percenters into a condominium.

Amenities include rooftop spaces, a children’s playroom, a gym and a small deli.

Last year, the nearby all free-market 22 River Terrace with 324 units was also sold for Rockrose for $255 million through Cushman & Wakefield to Centurion Real Estate Partners and Five Mile Capital. Since then, pricing for condos and land have both leaped.

Similarly, just south of the World Trade Center, a former industrial printing building that was later headquarters for Local 32b-j of the Service Employees International Union and converted to 60 large and lofty market-rate rental apartments in 1997, is also being offered for sale for $65 million.

The 66,530-square-foot building at 110 Greenwich St. on the southwest corner of Carlisle Street is owned by Tom Jakobson of Jakobson Properties. Sitting across Greenwich from the W Downtown and the former American Stock Exchange site, this could be converted to condominiums or a hotel. But it also has 30,000 square feet of air rights that could be added to its top, incorporated into a new building or combined with an adjacent development site now on the market for a lofty $260 million.

Eastern Consolidated Chairman and CEO Peter Hauspurg along with principal David Schechtman, Abie Kassin, and Scott Ellard are representing Jakobson in coordination with Elyse Schindler-Candella, Wes Rudes and Mark Jaccom of Cresa New York.

Its valuable 6,000 square feet of corner retail on two levels is occupied by the Trinity Boxing Club whose owner, Martin Snow, is duking it out with the building, as The Post reported last month. He just lost a court case over the renewal of his low-rent retail lease, but his attorney, Ed Hayes told us, “We will take every legal remedy to keep him there. It’s a popular New York institution.”

Snow is also one of the apartment tenants, all of whom have market rate leases that expire over the next year.

Much of the rest of the block has been enveloped into the development site at 111 Washington St. that Crain’s reported is now being marketed by Massey Knakal for $260 million.

There, Fred Ohebshalom and his son Richard have lassoed enough air rights to create a 362,000-square-foot project, which would bring the land cost to $700 per foot.

Add these two sites together and you are still in for $700 per buildable foot. Go get ’em before the market turns.