Prime Upper East Side co-op seeing multi-million dollar transfers with zero open code violations.
Upper East Side co-op transfers here sit in premier-tier territory, including an $18M trade in September 2025 and a $28M transaction in February 2026. Code enforcement and maintenance complaints against the address are absent, leaving board governance and financial diligence as the central focus. Three things to know:
Eight-figure unit transfers reflect high board underwriting standards. Recent unit transactions include high-valuation transfers, such as a $28M trade in February 2026 and an $18M transaction in September 2025. In this price bracket, boards require deep financial disclosures, stringent liquidity reserves post-closing, and clear expectations around trust or LLC purchasing structures.
Public agency filings are minimal, shifting evaluation to private disclosures. Co-ops resolve physical repairs through internal management rather than agency channels, making public code filings sparse. To understand ongoing physical maintenance and upcoming capital projects, review board meeting minutes and recent financial statements.
Physical filings remain minimal across recent history. The address recorded a single call in April 2026 regarding defective hardware on the street side, which was marked closed. Without agency violation history, buyer due diligence centers on house rules, transfer taxes, and operational policies.
Quieter signals on this building and the blocks around it:
4 East 66th Street is a 0-unit building in Manhattan, New York City (BBL 1013800027). Brix does not yet have a current violation read for this property (not enough recent data), along with inspection history, DOB filings, tenant complaints, and rent stabilization status.
The building last changed hands on March 6, 2026 for $7,200,000, according to recorded deeds.
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Unit 9A at 4 East 66th Street has no violations, last sold in 2026 for $7.2M. Owner on the latest deed: Ues Household LLC.
Unit 3RD at 4 East 66th Street has no violations, last sold in 2026 for $28M. Owner on the latest deed: Anthony Bonsignore, As Trustee & Fifth Avenue Trust.
Unit 12B at 4 East 66th Street has no violations, last sold in 2025 for $14M. Owner on the latest deed: Indian Creek 2016, LLC.
Unit 6C at 4 East 66th Street has no violations, last sold in 2025 for $460K. Owner on the latest deed: Sidford, Janet.
Unit 7D at 4 East 66th Street has no violations, last sold in 2025 for $605K. Owner on the latest deed: Giambrone, Allison & Giambrone, Lauren +1 more.
Unit 5BC at 4 East 66th Street has no violations, last sold in 2025 for $985K. Owner on the latest deed: Yehuda, Jonathan & Vilnits, Rada.
Unit 8B at 4 East 66th Street has no violations, last sold in 2025 for $1M. Owner on the latest deed: Stemberg, Katherine & Schnoor, William.
Unit 14FL at 4 East 66th Street has no violations, last sold in 2025 for $18M. Owner on the latest deed: Attalla, Lea.
Unit 8E at 4 East 66th Street has no violations, last sold in 2025 for $685K. Owner on the latest deed: Paltzer, Gabriele & Paltzer-Lang, Gabriele +1 more.
Unit 7C at 4 East 66th Street has no violations, last sold in 2025 for $325K. Owner on the latest deed: Aizenstein, Deborah & Aizenstein, Jack.
Unit 3A at 4 East 66th Street has no violations, last sold in 2025 for $550K. Owner on the latest deed: Dadoo Gonzalez, Harish & Mota Velasco, Maria.
Unit 12E at 4 East 66th Street has no violations, last sold in 2025 for $925K. Owner on the latest deed: Pagano, Rose & Pagano, Michael.
Unit 2B at 4 East 66th Street has no violations, last sold in 2021 for $3.9M. Owner on the latest deed: Muessel, Ariana & Muessel, Nazgol +1 more.
Unit 5C at 4 East 66th Street has no violations, last sold in 2011 for $475K. Owner on the latest deed: Stephanie Germain, Trustee & The Stephanie Germain Separate Property Trust.
Unit 10A at 4 East 66th Street has no violations, last sold in 2025 for $2.8M. Owner on the latest deed: Rattner, David & Law, Andrew.
Unit 7 at 4 East 66th Street has no violations, last sold in 2025 for $37M. Owner on the latest deed: Rao, Rajaram & Rao, Anjuli.
Unit 1D at 4 East 66th Street has no violations, last sold in 2025 for $1.5M. Owner on the latest deed: Rao, Rajaram & Rao, Anjuli.
Unit 1B at 4 East 66th Street has no violations. Owner on the latest deed: New, Ryan.
Unit 6A at 4 East 66th Street has no violations, last sold in 2025 for $8.4M. Owner on the latest deed: Madisonarmani LLC.
Unit 17B at 4 East 66th Street has no violations. Owner on the latest deed: Eric Slovin, Trustee & Rochelle Slovin Irrevocable Trust +1 more.
Unit 7B at 4 East 66th Street has no violations, last sold in 2025 for $6.8M. Owner on the latest deed: 40 East 66 7B LLC.
Unit PH11 at 4 East 66th Street has no violations, last sold in 2025 for $31M. Owner on the latest deed: Montag, Janet.
Unit 2 at 4 East 66th Street has no violations, last sold in 2025 for $6.4M. Owner on the latest deed: Alexandre Leviant, As Co-Trustee & William Zabel, As Co-Trustee +1 more.
Unit PH10 at 4 East 66th Street has no violations, last sold in 2025 for $22M. Owner on the latest deed: Brule, Elsa.
Unit 4B at 4 East 66th Street has no violations, last sold in 2025 for $7.9M. Owner on the latest deed: 155 West 11th Unit 10D LLC.
Unit PH at 4 East 66th Street has no violations, last sold in 2011 for $25M. Owner on the latest deed: Lucas, Katherine & Lucas, Craig.
Unit 8 at 4 East 66th Street has no violations, last sold in 2024 for $23M. Owner on the latest deed: Westside 14a LLC.
Unit 6D at 4 East 66th Street has no violations, last sold in 2024 for $650K. Owner on the latest deed: Gurler, Pinar.
Unit 6E at 4 East 66th Street has no violations, last sold in 2024 for $420K. Owner on the latest deed: Neri, Andrea.
Unit 4A at 4 East 66th Street has no violations, last sold in 2024 for $855K. Owner on the latest deed: De Sensi, Alessio & De Sensi, Alice.
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