The corner of Third Avenue and East 84th Street is bracing for a serious growth spurt. Wooden construction fencing now wraps around 1491–1497 Third Avenue on the Upper East Side, as crews quietly gear up for demolition. The four-story Doelger building at 1491 appears vacated, the taller 1495 is still standing, and the five-story 1497 is still occupied for now, with a Chipotle holding down the ground floor. Neighbors have spotted activity on the site, but no full-scale demolition work has been publicly reported yet.
What’s Planned
According to New York YIMBY, the project is designed by Hill West Architects and is listed under an entity tied to developer Samy Mahfar. Plans call for a tower rising about 510 feet and topping out at 37 stories. The filing outlines roughly 259,202 square feet of total floor area and 120 condominium units, averaging about 2,001 square feet each.
The tower is also slated to include 18,994 square feet of lower-level commercial space, two cellar levels, a 31-foot rear yard and a 30-vehicle garage. No public renderings have been released, and a construction timeline has not yet been announced, according to New York YIMBY.
Permits And Demolition Filings
Records reviewed by PincusCo show a new-building application filed with the Department of Buildings on Dec. 29, 2025, under job number M01325392, along with separate demolition filings for parcels in the assemblage appearing in January. The larger demo activity also caught the eye of The Real Deal, which listed job numbers M01331393 and M01331450 among the week’s notable permits.
Taken together, the filings indicate the developer has shifted from the long game of acquisition and planning into active site preparation, setting the stage for a full teardown of the existing low-rise buildings.
Who’s Behind The Plan
The project entity is listed as 255 East Houston Manager LLC, which reporting has tied to Samy Mahfar and his SMA Equities portfolio. Preservation groups twice sought landmark protection for the Doelger building, but the Landmarks Preservation Commission declined both petitions, according to Patch. That decision effectively removed a key procedural obstacle to redevelopment.
Mahfar’s companies have also drawn attention in the past. They were the subject of a 2017 settlement with the state Attorney General over allegations related to unsafe construction and tenant harassment, as reported by The Lo-Down.
How The Block Will Change
If built as filed, the new tower would be among the tallest buildings on this stretch of Third Avenue, joining a growing cluster of high-rises to the north. Recent additions include RAMSA’s 200 East 83rd Street and CetraRuddy’s 1448 Third Avenue, which are already reshaping the corridor’s skyline and feel.
For longtime neighbors, the shift is stark: a block once defined by low-rise storefronts and walkups is rapidly becoming a wall of glass and concrete, ushering in denser housing, more commercial space and a very different street presence.
Next Steps
A protective construction fence has been installed around the vacated portion of the site, signaling that things are getting real, but full demolition permits are still under review and no official start date for demolition or vertical construction has been released, according to Patch.
In the coming weeks, the developer will need final Department of Buildings approvals, and tenant relocations on the occupied parts of the assemblage are likely to pick up speed as the project moves toward hard demolition and eventual foundation work.
