Sendowskis pay $17M for walkups in Lincoln Square, paid $45.5M for adjacent building

Janusz Sendowski and Oren Sendowski through the entity 15 W64, LLC paid $17 million to Elliot Sohayegh through the entity NYC 6400 Holdings LLC for the 20-unit residential walkup building (C4) at 15 West 64th Street and the 20-unit residential walkup building (C4) at 15A West 64th Street in Lincoln Square, Manhattan. The expected use is cash flowing. The buildings are on adjacent lots to the 86-unit residential elevator building (D1) at 10 West 65th Street which the Sendowski family bought last year for $45.5 million.
The new deal closed on April 28, 2026 and was recorded on June 22, 2026. The two properties have 18,830 square feet of built space and 11,395 square feet of additional air rights for a total buildable of 30,220 square feet according to a PincusCo analysis of city data. The sale price per built square foot is $902 and the price per buildable square foot is $562 per the PincusCo analysis. (The price per square foot analysis is the transaction price divided by square feet as reported in public records and assumes no air rights have been sold.)
The signatory for Elliot Sohayegh was Stephen S. Siminou . The signatory for Janusz Sendowski and Oren Sendowski was Janasz Sendowski. The contract date was February 4, 2026.

Prior sales, articles and revenue

Prior to this transaction, PincusCo has records that the buyer Janusz Sendowski purchased 11 properties in 10 transactions for a total of $145.4 million and has no record it sold any properties over the past 24 months.
The seller Elliot Sohayegh had not purchased any other properties and had not sold any properties over the same time period. The former owners according to the Department of Housing Preservation and Development includes Silvia Bravo , head officer and Nelon Bartholomew, site manager. The business entity is Nyc 6400 Holding LLC. The two properties with a total of 18,830 square feet of built space generated revenue of $1.2 million per year or $65 per square foot. The sale price per square foot was $903.

The property

The residential walkup building at 15 West 64th Street with 20 residential units in Lincoln Square has frontage of 25 feet and is 100 feet deep with a total lot size of 2,510 square feet. The zoning is R8 which allows for up to 6.02 times floor area ratio (FAR) for residential. The city-designated market value for the property in 2022 is $3 million. The property has 3 rent regulated units according to city tax records from 2024.

Violations and lawsuits

There were no lawsuits or bankruptcies filed against the properties for the past 24 months. In addition, according to city public data, the properties have received $2,500 in ECB penalties, 14 housing violations, $4,705 in OATH penalties, and one housing litigation in the last year.

Development

There are no active new building construction projects or major alteration projects with initial costs more than $1 million on this tax lot.

The block

On the tax block of 15 West 64th Street, PincusCo has identified the owners of eight of the 11 commercial properties representing 569,197 square feet of the 639,943 square feet. The largest owner is Glenwood Management followed by Pamela Sendowski Irrevocable Trust (which owns 32 West 65th Street) and then Mark Harounian.
There are no active new building construction projects on this tax block.

The majority, or 92 percent of the 639,943 square feet of built space are elevator buildings, with walkup buildings next occupying 8 percent of the space.

The seller

The PincusCo database currently indicates that Elliot Sohayegh owned at least 14 commercial properties with 241 residential units in New York City with 183,645 square feet and a PincusCo-determined asset value of $94.3 million. The portfolio has $46.3 million in debt, with top three lenders as Amalgamated Bank , New York Community Bank , and Hanover Community Bank respectively. Within the portfolio, the bulk, or 61 percent of the 183,645 square feet of built space are elevator properties, with walkup properties next occupying 32 percent of the space. The bulk, or 86 percent of the built space, is in Manhattan, with Brooklyn next at 13 percent of the space.

The buyer

The PincusCo database currently indicates that Janusz Sendowski owned at least 16 commercial properties with 411 residential units in New York City with 501,021 square feet and a PincusCo-determined asset value of $202.5 million. The portfolio has $116.9 million in debt, with top three lenders as JPMorgan Chase , Deutsche Bank, and Bankwell Bank respectively. Within the portfolio, the bulk, or 70 percent of the 501,021 square feet of built space are elevator properties, with walkup properties next occupying 16 percent of the space. The bulk, or 75 percent of the built space, is in Manhattan, with Bronx next at 13 percent of the space.
The PincusCo database currently indicates that Oren Sendowski owned at least 16 commercial properties with 411 residential units in New York City with 501,021 square feet and a PincusCo-determined asset value of $202.5 million. The portfolio has $6.3 million in debt, borrowed from Signature Bank . Within the portfolio, the bulk, or 70 percent of the 501,021 square feet of built space are elevator properties, with walkup properties next occupying 16 percent of the space. The bulk, or 75 percent of the built space, is in Manhattan, with Bronx next at 13 percent of the space.

Direct link to Acris document. link