Questions about this building
Does 447 Prospect Place, Brooklyn have open violations?
Yes. 447 Prospect Place, Brooklyn had 18 open violations on September 26, 2026: 18 from HPD. 12 are Class C, the class HPD treats as immediately hazardous.
Is 447 Prospect Place, Brooklyn getting better or worse?
Open violations are sitting, with little movement either way. 12 open Class C, with 0 certifications filed and 1 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.
Does 447 Prospect Place, Brooklyn have active DOB violations?
Yes. 1 active DOB violation, issued August 16, 1993. 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 447 Prospect Place, Brooklyn?
Yes. 2 DOB complaints in the last 12 months. The newest was filed July 6, 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 447 Prospect Place, Brooklyn marked completed?
Yes. 1 completed HPD emergency repair order since September 28, 2023: a plumbing order, opened December 30, 2025, awarded for $3,900. 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 447 Prospect Place, Brooklyn?
Yes. 2 DOB work permits in effect. The latest, for Construction Fence work, was issued August 20, 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 447 Prospect Place, Brooklyn built?
The city's record gives 1907 as the year 447 Prospect Place, Brooklyn was built, in the Department of City Planning's PLUTO tax-lot file. The same file classes it as a walk-up apartment building with 4 floors.
How many apartments does 447 Prospect Place, Brooklyn have?
The Department of City Planning's PLUTO tax-lot file lists 8 residential units at 447 Prospect Place, Brooklyn. 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 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, 447 Prospect Pl, Brooklyn: 12 open Class C, from New York City's HPD violation and OATH/ECB hearing data. Figures through September 26, 2026. https://violationscout.com/building/447-prospect-place-brooklyn
How we count: /method.