9 Street, Brooklyn: Grade B+ · 311, HPD & Crash Data
Grade B+, 69 out of 100. How does 9 Street in Brooklyn rank for traffic safety, noise, and cleanliness?
Livability score
Grade B+, livability 69 out of 100.
Calm 61, ranked against numbered streets. Access 83, ranked against every street in the city. Fewer complaints per home than most numbered streets, and a lot within a walk.
That puts 9 Street in the top 8% of scored streets citywide.
Strongest on quietness (94) and food nearby (86). Parking (17) is the weak spot.
On the record
More 311 reports on 9 Street name illegal parking than any other category, 756 of them, and parking ranks 17 among numbered streets. Across every category, 1,246 reports sit on this street's 311 file, and 61% of them name illegal parking. After that the file runs to residential noise (35 reports) and elevator (34). Reports on 9 Street span 78 distinct 311 categories. Set against the 1,093 homes on file, that is about 114 reports per 100 homes.
9 Street carries 26 Class C violations on its HPD file, the most serious of the three classes an inspector can write, about 2 per 100 homes on file. Bed bugs is what HPD writes up most on 9 Street, 76 violations of it. Pests follows at 72 violations, then paint and lead at 17. PLUTO counts 297 residential buildings and 1,093 homes on 9 Street, with 102 walk-ups and 3 elevator buildings among them. Across those buildings the average is about 3.7 homes each.
Since 2021, 40 people have been injured in reported crashes here.
Of the ten measures on the card, traffic safety ranks 66 among numbered streets and cleanliness ranks 31. 9 Street sits in the weaker half of numbered streets on cleanliness. Measured against numbered streets, housing sits at 66 and infrastructure at 37. Transit ranks 82 and tree cover 80, both against every street in the city rather than inside the band. Of the three measures ranked citywide, food nearby is the strongest on 9 Street, at 86. The band those ranks are drawn from holds about 990 numbered streets.
Quietness is where 9 Street ranks best against numbered streets, at 94.
About 19% of the 1,093 homes on file are rent-stabilized, 204 homes in all.
Scores are built from 311 complaints, HPD violations, NYPD crash records, NYPD felony complaint records, MTA stop locations, DOHMH food permits, and the street tree census, divided by the homes and businesses on the street, updated weekly. Read the scoring method or the data sources.
Nearest streets in Brooklyn
- 10 Street, Brooklyn
- 8 Street, Brooklyn
- 11 Street, Brooklyn
- 4 Street, Brooklyn
- 12 Street, Brooklyn
- 3 Street, Brooklyn
9 Street runs through Park Slope and Carroll Gardens, where every scored street in the neighborhood is ranked beside it.
Every scored street in Brooklyn, the citywide rankings of all 5,700+ graded streets, or Queens vs Brooklyn: How the Two Boroughs Score (2026 Data).