Bay 40 Street, Brooklyn: Grade B · 311, HPD & Crash Data
Grade B, 59 out of 100. How does Bay 40 Street in Brooklyn rank for traffic safety, noise, and cleanliness?
Livability score
Grade B, livability 59 out of 100.
Calm 58, ranked against built-up residential streets. Access 60, ranked against every street in the city. Fewer complaints per home than most built-up residential streets, and a lot within a walk.
That puts Bay 40 Street in the top 25% of scored streets citywide.
Strongest on traffic safety (74) and transit (72). Parking (2) is the weak spot.
On the record
Illegal parking leads the 311 file on Bay 40 Street, with 235 reports, and parking ranks 2 among built-up residential streets. Across every category, 340 reports sit on this street's 311 file, and 69% of them name illegal parking. Abandoned vehicle is the next most-filed at 39 reports, then blocked driveway at 13. Reports on Bay 40 Street span 38 distinct 311 categories. Set against the 335 homes on file, that is about 101 reports per 100 homes.
Bay 40 Street carries 2 Class C violations on its HPD file, the most serious of the three classes an inspector can write, about 1 per 100 homes on file. The category HPD cites most often here is bed bugs, with 20 violations on file. Pests accounts for 12 more. The housing file lists 167 residential buildings on Bay 40 Street holding 335 homes, with 44 walk-ups and 0 elevator buildings among them. Across those buildings the average is about 2 homes each.
Against built-up residential streets, cleanliness comes in at 73, with infrastructure at 29. A 29 on infrastructure places Bay 40 Street in the weaker half of built-up residential streets. The card also puts quietness at 64 and housing at 49 among built-up residential streets. Food nearby ranks 48 and tree cover 48, both against every street in the city rather than inside the band. Bay 40 Street ranks 72 on transit, the best of its three citywide measures. About 790 built-up residential streets make up the band Bay 40 Street is scored inside.
The strongest band-ranked measure on Bay 40 Street is traffic safety, at 74.
The housing file records no rent-stabilized home among the 335 on Bay 40 Street.
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.
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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).