São Paulo Office Tower Adds Forty-Third Floor Only on Tax Forms

By our Built Environment Correspondent · September 13, 2026

São Paulo — A commercial tower on Avenida Paulista added a forty-third floor this month without altering its height, footprint, or building, according to tax records that now recognize the new level as fully occupied by a company specializing in administrative space.

The floor first appeared in a spreadsheet submitted during a routine assessment. Because every cell was complete, the municipal system approved construction automatically and assigned the level two fire extinguishers, a waste collection schedule, and a view.

Tenants on the physical forty-second floor reported hearing nothing above them. The elevator, however, began displaying a button marked 43. Pressing it causes the doors to close, the music to become slightly more confident, and a receipt to emerge from the control panel.

The city cannot inspect what it has already assessed.

The registered occupant, Horizonte Administrative Holdings, pays rent to the building owner and sublets desks to firms that need an address but do not require matter. Its lease describes the premises as open concept in the strictest available sense.

Fire officials said the floor meets all evacuation requirements because it contains no people. Labor inspectors disagreed, noting that six employees are assigned there for payroll purposes and deserve a route out of whatever it is they are in.

The building association voted to install plants on the new level. At 6 p.m., the elevator made one final trip to 43 and returned empty, carrying six signatures on its inspection log.