110 4 Ave

Accepted annual boiler inspection filings, any date

DOB boiler permits (BIS and DOB NOW); a permit dates work, not the boiler's age

HPD complaints, heat season 2025–26 (Oct 1–May 31)

Effective FIRM zones touching the building footprint

Mapped ponding touching the building footprint

Active elevator devices registered to this building ID

The list doesn't say which apartments are stabilized, and being listed isn't proof of current status. For a specific apartment, request its rent history from HCR

Letter grades are issued by the city under Local Law 33 and posted near the building entrance; Blueflo shows the reported score only

Open DOB, ECB and DOB NOW Safety violations, any date, one per violation. ECB class 1 = hazardous, class 2 = major

HPD complaints received in the last 2 years; the list below is every complaint on record for the last three years

DOB permits issued (DOB NOW and legacy BIS), one per job and work type; excludes sheds