Mendel Fleischman pays $2.6M for conversion site in Williamsburg

Mendel Fleischman through the entity 67 Garden, LLC paid $2.6 million to the estate of the late Albert J. Byrnes through the entity 67s6, LLC for the retail building (K1) at 67 South 6th Street in Williamsburg, Brooklyn. The expected use is conversion/addition to an eight-unit residential building.
The deal closed on February 27, 2026 and was recorded on March 6, 2026. The property has 2,930 square feet of built space and 1,493 square feet of additional air rights for a total buildable of 4,425 square feet according to a PincusCo analysis of city data. The sale price per built square foot is $897 and the price per buildable square foot is $594 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 Albert J. Byrnes was Mary Alice Byrnes. The signatory for Mendel Fleischman was Mendel Fleischman. The contract date was July 23, 2025. This is a conversion under Department of Buildings job number B01316543, filed by Yitzchok Berkowitz, that is a plan that calls for four stories with eight units and no retail.

Prior sales, articles and revenue

Prior to this transaction, PincusCo has records that the buyer Mendel Fleischman purchased one property in one transaction for a total of $2.7 million and has no record it sold any properties over the past 24 months.
The seller Albert J. Byrnes had not purchased any other properties and had not sold any properties over the same time period. The 2,930-square-foot property generated revenue of $83,622 or $29 per square foot, according to the most recent income and expense figures.

The property

The retail building in Williamsburg has 2,930 square feet of built space and 1,493 square feet of additional air rights for a total buildable of 4,425 square feet according to a PincusCo analysis of city data. The parcel has frontage of 40 feet and is 43 feet deep with a total lot size of 1,821 square feet. The zoning is C4-3 which allows for up to 3.4 times floor area ratio (FAR) for commercial and up to 2.43 times FAR for residential. The city-designated market value for the property in 2022 is $439,000.

Violations and lawsuits

There were no lawsuits or bankruptcies filed against the property for the past 24 months. In addition, according to city public data, the property has not received any significant violations in the last year.

The neighborhood

In Williamsburg, The bulk, or 39 percent of the 50.4 million square feet of commercial built space are elevator buildings, with walkup buildings next occupying 25 percent of the space. In sales, Williamsburg has the 6th highest sale turnover among other neighborhoods in the city with $2 billion in sales volume in the last two years. For development, Williamsburg is the 2nd most active neighborhood among other neighborhoods. It had 41.9 million square feet of commercial and multi-family construction under development in the last two years, which represents 83 percent of the neighborhood’s built space.

The block

On this tax block, PincusCo has identified the owners of one of the three commercial properties representing 930 square feet of the 3,860 square feet. The identified owner is Joel Wieder.
There are no active new building construction projects on this tax block.

The majority, or 76 percent of the 3,860 square feet of built space are retail buildings, with office buildings next occupying 24 percent of the space.

The buyer

The PincusCo database currently indicates that Mendel Fleischman owned at least 12 commercial properties with 65 residential units in New York City with 53,227 square feet and a city-determined market value of $11.4 million. (Market value is typically about 50% of actual value.) The portfolio has $61.4 million in debt, with top three lenders as Greystone & Co., S3 Capital, and IceCap Group respectively. Within the portfolio, the bulk, or 41 percent of the 53,227 square feet of built space are walkup properties, with mixed-use properties next occupying 22 percent of the space. The bulk, or 90 percent of the built space, is in Brooklyn, with Manhattan next at 10 percent of the space.

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