46 East 66th Street, Manhattan

An 1878 Upper East Side single home with high-dollar transfers on file.

An 1878 single-family townhouse on an Upper East Side block between Madison and Park. Ownership transferred in 2019 for $17.7M after previously changing hands in 2013 for $9M. Two things to know:

LLC ownership after diplomatic title. Property filings show title held under MRRDISON LLC, which acquired the property in 2019 following a 2013 transaction from the Government of the Republic of Senegal. Single-family townhouses don't generate standard tenant paperwork, so underwriting depends entirely on direct physical inspection.

Street-level commercial activity dominates the surrounding blocks. 241 vendor enforcement calls within three blocks over the last year, predominantly for food vendors. Another 99 illegal parking reports cluster nearby, driven by posted sign violations and blocked hydrants along the commercial corridors off Madison.

Quieter signals on this building and the blocks around it:

• The building itself shows a single closed vendor complaint in March 2025.
• Street condition complaints within three blocks total 77 over the last year, led by pothole and defective hardware calls.

46 East 66th Street is a single-family home in Manhattan, New York City (BBL 1013800048). This building is associated with Mrrdison LLC. 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.

Built in 1878, this single-family home sits in Manhattan and is tracked by Brix using public NYC records from HPD, DOB, ACRIS, and 311.

The building last changed hands on March 31, 2023 for $7,000,000, according to recorded deeds.

Brix score: 100/100. View the Building Report on Brix.

See every NYC building owned by Mrrdison LLC on the landlord portfolio page.