Serious concerns
Go in with your eyes open
72
out of 100
Heavier than 81% of buildings in Park Slope
74 open hazardous violations, against a typical 2 nearby. On the other hand, the building’s age and size suggest rent stabilization.
420 SIXTH AVENUE · 12 apartments · built 1900 · records to 2026-09-18
In its favor
- The building’s age and size suggest rent stabilization
- F/G train about 4 minutes away
Against it
- 74 open hazardous violations, against a typical 2 nearby
- Fixes only 0% of violations by the city’s deadline
Open and hazardous
74 violations the city still lists as unresolved
74 of them are past the correction deadline HPD set, by a median of 18 years.
- Other15
- Fire & life safety12
- Paint / plaster12
- Lead paint11
- Disrepair10
- Structural5
- Water leak3
- Heat / hot water2
- Plumbing2
- Pests1
- Refuse / sanitation1
A typical building of 6 to 19 apartments has 2. This one has more than 98% of them.
The oldest shown was issued 2006-08-15 and remains open on HPD’s records.