Marek Kaczor pays $4.7M for 4-family in Williamsburg

Marek Kaczor through the entity Frost Street Holdings LLC paid $4.7 million for the four-unit building (C3) at 138 Frost Street in Williamsburg, Brooklyn. The expected use is cash flowing.
The deal closed on July 8, 2025 and was recorded on July 28, 2025. The property has 5,540 square feet of built space and 4,450 square feet of additional air rights for a total buildable of 10,000 square feet according to a PincusCo analysis of city data. The sale price per built square foot is $848 and the price per buildable square foot is $470 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 signatories for the sellers were Pellegrino Bifulco and Antoinette Sgrizzi. The signatory for Marek Kaczor was Marek Kaczor. The contract date was March 25, 2025.

Prior sales and revenue

Prior to this transaction, PincusCo has records that the buyer Marek Kaczor purchased two properties in two transactions for a total of $4.8 million and sold four properties in four transactions for a total of $13.5 million over the past 24 months.
The seller Pellegrino Bifulco 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 Antoinette Bifulco, head officer and Pellegrino Bifulco, officer. The 5,540-square-foot property generated revenue of $131,963 or $24 per square foot, according to the most recent income and expense figures.

The property

The 1-4 family building with 4 residential units in Williamsburg has 5,540 square feet of built space and 4,450 square feet of additional air rights for a total buildable of 10,000 square feet according to a PincusCo analysis of city data. The parcel has frontage of 50 feet and is 100 feet deep with a total lot size of 5,000 square feet. The zoning is R6B which allows for up to 2 times floor area ratio (FAR) for residential with inclusionary housing. The city-designated market value for the property in 2022 is $1.9 million.

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 received $600 in OATH penalties 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 this tax block, PincusCo has identified the owners of 11 of the 23 commercial properties representing 40,681 square feet of the 107,478 square feet. The largest owner is Pinchus S. Rottenberg, followed by Steven Einhorn and then Joseph Rinaldi And Josephine Rinaldi Living Trust.
On the tax block, there were two new building construction projects totaling 6,667 square feet. The largest is a seven-unit, 6,667 square-foot residential (R-2) building submitted by Michael Viola with plans filed July 23, 2018 and permitted April 15, 2021. The second largest is a five-unit residential (R-2) building submitted by Arie Bar Chaim|Tian Dong Zheng and filed by Arie Bar Chaim with plans filed August 25, 2022 and permitted May 17, 2023.

The majority, or 55 percent of the 107,478 square feet of built space are mixed-use buildings, with walkup buildings next occupying 43 percent of the space.

The buyer

The PincusCo database currently indicates that Marek Kaczor owned at least five commercial properties with 22 residential units in New York City with 15,822 square feet and a city-determined market value of $8 million. (Market value is typically about 50% of actual value.) The portfolio has $1.9 million in debt, borrowed from Polish & Slavic Federal Credit Union. Within the portfolio, the bulk, or 73 percent of the 15,822 square feet of built space are walkup properties, with C0 properties next occupying 18 percent of the space. They are all located in Brooklyn.

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