Berkeley Carroll School pays $6.1M for 2-family in Park Slope

Berkeley Carroll School through the entity Berkeley Carroll School paid $6.1 million for the two-family building (B3) at 545 Third Street in Park Slope, Brooklyn. The expected use is owner occupied.
The deal closed on June 16, 2025 and was recorded on July 9, 2025. The property has 3,800 square feet of built space for a total buildable of 3,800 square feet according to a PincusCo analysis of city data. The sale price per built square foot is $1,611 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 seller bought the property on January 31, 2011, for $2.3 million. The signatory for James Heindlmeyer was James Heindlmeyer. The signatory for Berkeley Carroll School was Karen Benson . The contract date was April 18, 2025.

Prior sales and revenue

Prior to this transaction, PincusCo has no record that the buyer Berkeley Carroll School had purchased any other properties and has no record it sold any properties over the past 24 months.
The seller James Heindlmeyer had not purchased any other properties and had not sold any properties over the same time period.

The property

The 1-4 family building with 2 residential units in Park Slope has 3,800 square feet of built space for a total buildable of 3,800 square feet according to a PincusCo analysis of city data. The parcel has frontage of 20 feet and is 95 feet deep with a total lot size of 1,900 square feet. The zoning is R6B which allows for up to 2 times floor area ratio (FAR) for residential with inclusionary housing. The property is in the Park Slope Historic District. The city-designated market value for the property in 2022 is $4.9 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 not received any significant violations in the last year.

Development

For the tax lot building, it received its initial certificate of occupancy on July 23, 2014. 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 five of the 12 commercial properties representing 63,485 square feet of the 82,666 square feet. The largest owner is Minotti John Ciferni, followed by Hedva Stavisky Weiss and then Gloria Farran.
There are no active new building construction projects on this tax block.

The majority, or 47 percent of the 82,666 square feet of built space are elevator buildings, with mixed-use buildings next occupying 34 percent of the space.

The buyer

The PincusCo database currently indicates that Berkeley Carroll School owned at least four commercial properties in New York City with 59,737 square feet and a city-determined market value of $16.9 million. (Market value is typically about 50% of actual value.) The portfolio has $40 million in debt, borrowed from Build NYC Resource Corporation. Within the portfolio, the bulk, or 89 percent of the 59,737 square feet of built space are specialty properties, with M1 properties next occupying 11 percent of the space. They are all located in Brooklyn.

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