Questions about this building
Does 423 East 135 Street, Bronx have open violations?
Yes. 423 East 135 Street, Bronx had 28 open violations on September 26, 2026: 4 from OATH/ECB and 24 from HPD. 14 are Class C, the class HPD treats as immediately hazardous.
Is 423 East 135 Street, Bronx getting better or worse?
Open violations are sitting, with little movement either way. 14 open Class C, with 3 certifications filed and 3 new Class C in the last 180 days, too few to call a direction. That window ends September 26, 2026. It compares certifications filed with new Class C violations, and it describes what happened, not what anyone intends.
When were certifications filed on Class C violations at 423 East 135 Street, Bronx?
Since September 28, 2023, certifications were filed on 2 Class C violations, all 2 by the original certify-by date. HPD now marks 1 of them Invalid Certification. A certification is the filing, dated when it was made, not HPD's acceptance of it. It is compared with the original certify-by date on the notice. A granted postponement moves that date and the city's data keeps only the first, so a certification counted after it may still have met a postponed date.
Does 423 East 135 Street, Bronx have an OATH hearing coming up?
Yes. A hearing on a DOB summons is set for October 30, 2026. DOB summonses are heard at OATH, the city's hearings office, and OATH can move a hearing to a later date. When nobody shows up, the summons is decided by default, the costliest way one ends.
Does 423 East 135 Street, Bronx have active DOB violations?
Yes. 1 active DOB violation, issued August 17, 2026. The Department of Buildings writes these separately from HPD's housing violations, for things like boilers, elevators, facades, construction and energy filings. Each one stays active until DOB resolves or dismisses it.
Has DOB received complaints about 423 East 135 Street, Bronx?
Yes. 3 DOB complaints in the last 12 months, 1 of them conversion complaint. The newest was filed August 16, 2026. Anyone can complain to DOB about a building or the work going on in it, and DOB then inspects and decides whether there is a violation. A conversion complaint says an apartment may have been added or changed without approval. It is a complaint, not a finding.
Are any HPD emergency repair orders at 423 East 135 Street, Bronx marked completed?
Yes. 1 completed HPD emergency repair order since September 28, 2023: a general construction order, opened January 2, 2025, awarded for $4,320. HPD orders an emergency repair when a hazardous condition cited in a violation, or in another agency's emergency order, is not corrected, and does the work itself or through a contractor. The amounts are what the orders were awarded for, not a bill: this page does not show what was charged to the property or whether it was paid. Orders for lab tests, such as dust-wipe and asbestos samples, are not counted.
Are any DOB work permits in effect at 423 East 135 Street, Bronx?
Yes. 1 DOB work permit in effect, for Mechanical Systems work, issued September 1, 2026. A permit in effect allows the work it names. It does not mean the work has started or finished, or that it fixes any violation on this page.
When was 423 East 135 Street, Bronx built?
The city's record gives 1901 as the year 423 East 135 Street, Bronx was built, in the Department of City Planning's PLUTO tax-lot file. The same file classes it as an one-family dwelling with 3 floors.
How many apartments does 423 East 135 Street, Bronx have?
The Department of City Planning's PLUTO tax-lot file lists 1 residential unit at 423 East 135 Street, Bronx. The count is for the whole tax lot.
Where do these numbers come from?
From New York City's own data: HPD housing violations and OATH/ECB hearing results, read whole rather than sampled. It also draws on OATH hearing dates, DOB violations, DOB complaints, DOB NOW work permits, HPD emergency repair orders and the city's PLUTO tax-lot file. This page is current through September 26, 2026. The city's data changes daily, so a violation certified after that can still show as open here; the city's own page for this building is linked above.
Cite this page
ViolationScout, 423 East 135th St, Bronx: 14 open Class C, from New York City's HPD violation and OATH/ECB hearing data. Figures through September 26, 2026. https://violationscout.com/building/423-east-135-street-bronx
How we count: /method.