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 tracks 0 open HPD violations for this property, 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.
Brix rating: Not rated. View the Building Report on Brix.
Part of Upper East Side — see violations, complaints, and landlord activity across the whole neighborhood.
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