1240 Madison Avenue, Manhattan

Prewar Carnegie Hill co-op built in 1925, sitting above a busy stretch of Madison Avenue retail.

This sixty-unit building has been held by its cooperative corporation for decades. Because it is a co-op, building-specific issues typically resolve internally, leaving the public record mostly focused on the surrounding blocks and ground-floor storefronts. Three things to know:

Commercial kitchen venting and exhaust issues crop up around the ground floor. Seven food establishment complaints and three indoor air quality reports were filed within three blocks over the last year, with the most recent air quality call logged on July 21, 2026. Sharing a physical plant with retail can mean vapor or food smells drifting up through common risers.

Double-parking and blocked hydrants crowd the surrounding avenues. The blocks around the building saw 93 illegal parking complaints over the last year. These calls concentrate around fire hydrants and crosswalks—indicating a constant cycle of short-term delivery drop-offs rather than long-term vehicle storage, with the most recent call logged on July 24, 2026.

The cooperative maintains a wide pricing spread between its largest and smallest layouts. Recent transactions show a massive variance in unit sizes and values, with a $5.45M sale closing in late January 2026 and a $995,000 transaction closing just a week later. This means the shareholder base spans highly diverse apartment sizes.

Quieter signals on this building and the blocks around it:

• Ten panhandling complaints within three blocks last year, with the most recent reported on July 27, 2026.
• Thirteen homeless person assistance calls within three blocks last year, showing typical avenue activity near the park.
• Twenty-three noise complaints within three blocks last year, mostly tied to early-morning utility and construction work.
• Street-level activity and delivery traffic are the main friction points on this stretch of Madison Avenue.

1240 Madison Avenue is a 60-unit building in Manhattan, New York City (BBL 1015010016). This building is associated with First Boston Mtge Etc. Brix tracks 0 open HPD violations for this property, along with inspection history, DOB filings, tenant complaints, and rent stabilization status.

Built in 1925, this elevator apartment building sits in Manhattan and is tracked by Brix using public NYC records from HPD, DOB, ACRIS, and 311.

The building last changed hands on July 8, 2026, according to recorded deeds.

Brix rating: Clean (100/100). View the Building Report on Brix.

See every NYC building owned by First Boston Mtge Etc on the landlord portfolio page.