Isamar Margareten pays $5.5M for 40-unit walkup in Williamsburg
458 Bedford Avenue (Credit - Cyclomedia)
Isamar Margareten through the entity 456 Bedford LLC paid $5.5 million to the entity 456-458 Bedford Corp. for the 40-unit residential walkup building (C7) at 458 Bedford Avenue in Williamsburg, Brooklyn. The expected use is cash flowing.
The deal closed on December 8, 2025 and was recorded on December 19, 2025. The property has 30,290 square feet of built space according to a PincusCo analysis of city data. The sale price per built square foot is $181 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 the seller was Cheskel Grunwald. The signatory for Isamar Margareten was Isamar Margareten. The contract date was December 8, 2025.
Prior sales, articles and revenue
Prior to this transaction, PincusCo has no record that the buyer Isamar Margareten had purchased any other properties and has no record it sold any properties over the past 24 months.
The seller Cheskel Grunwald 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 Cheskel Grunwald, head officer and Mile Dejesus, site manager. The business entity is 456-458 Bedford Corp. The 30,290-square-foot property generated revenue of $385,238 or $13 per square foot, according to the most recent income and expense figures.
The property
The residential walkup building with 40 residential units in Williamsburg has 30,290 square feet of built space according to a PincusCo analysis of city data. The parcel has frontage of 75 feet and is 96 feet deep with a total lot size of 7,200 square feet. The zoning is R6 which allows for up to 2.43 times floor area ratio (FAR) for residential. The city-designated market value for the property in 2022 is $1.4 million. The property has 37 rent regulated units according to city tax records from 2024.
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 $150 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 one of the two commercial properties representing zero square feet of the 30,290 square feet. The identified owner is Sucher Ashkenazi.
On the tax block, there was one new building construction project filed totaling 32,847 square feet. It is a 32,847 square-foot 54 building submitted by Beis Alesk and filed by Beis Alesk with plans filed November 12, 2025 and it has not been permitted yet.
The majority, or 100 percent of the 30,290 square feet of built space are walkup buildings, with development buildings next occupying 0 percent of the space.
The buyer
The PincusCo database currently indicates that Isamar Margareten owned at least four commercial properties with 11 residential units in New York City with 25,615 square feet and a city-determined market value of $6.6 million. (Market value is typically about 50% of actual value.) The portfolio has $15.4 million in debt, borrowed from Broadview Capital. Within the portfolio, the bulk, or 36 percent of the 25,615 square feet of built space are industrial properties, with walkup properties next occupying 35 percent of the space. They are all located in Brooklyn.
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