Building record from city data · BROOKLYN, NY

401 8 Ave

Printed 2026-10-21 from blueflo.tech/b/401-8-avenue-brooklyn, where it is kept current. These are city records, not an inspection by Blueflo. Every item shows its source and the date it was last checked. Not a warranty. May not be used for tenant screening (terms of use).

Also known as 520 4 St — one building, several doors.

built 1922 · 6 stories · 30 apartments · BIN 3025530 · BBL 3010830005

Worth knowing
City records list the water service line as lead
Source: Lead Service Line Location Coordinates · as of 2026-01-30
Worth knowing
Also on record
Clean in the records
Registered with the city

NARROWS MANAGEMENT, 401 8TH AVENUE TENANTS CORP

Heat or hot water: 2 reports to the city since 2024
2024Heat or hot water · Feb 2024 · 1 report (1 complaint)Feb 15, 2024
2025
2026Heat or hot water · Jan 2026 · 1 report (1 complaint)Jan 24, 2026
Source: HPD Complaints and Problems · as of 2026-10-21

Apartments named in these records

2 of this building’s 30 apartments are named in a city record. The rest have no record naming them, which is the usual case.

These are city records about an apartment, not about anyone who lives or lived there. They may not be used to screen a tenant.

Heat and hot water

Issues on record (2023) · 1 complaint, 2026
Heat source

Boiler burning No. 2 oil (Rockmills Mp 100 ROCKMILLS MP 100), registration cancelled since Jan 1900

Clean Air Tracking System (boiler registrations), as of 2026-10-20 · See this building's boiler registrations on NYC Open Data →
Boiler inspection filings

Latest accepted inspection Jul 2026, defects reported: no

DOB NOW: Safety Boiler, as of 2026-10-19 · See the boiler filings at DOB →
What this counts

Accepted annual boiler inspection filings, any date

Boiler work permits

Latest boiler work permit 2006

DOB Permit Issuance (BIS), as of 2026-10-19
What this counts

DOB boiler permits (BIS and DOB NOW); a permit dates work, not the boiler's age

Heat and hot water complaints

1 heat or hot water complaint

Housing Maintenance Code Complaints and Problems, as of 2026-10-20 · See the complaints at HPD Online →
What this counts

HPD complaints, heat season 2025–26 (Oct 1–May 31)

Water and pipes

Issues on record, most recently 2023
Water service lineWhole tax lot

Lead (field inspection)

Lead Service Line Location Coordinates, as of 2026-01-30

Pests and cleanliness

2 complaints, 2025–2026 · 1 in the past year

Electrical

1 complaint, 2025
What has happened here

Structure and facade

Issues on record, most recently 2023
  • Facade ratingnot requiredNot required: facade inspections apply only to buildings taller than 6 stories
  • Sidewalk shed and scaffoldingfoundNo active shed permit
  • Landmark statusno recordNot in a historic district on record

Flooding

No issues on record
FEMA flood zone

Outside FEMA's 1% annual-chance flood zone: X

FEMA National Flood Hazard Layer, as of 2026-10-20
What this counts

Effective FIRM zones touching the building footprint

Stormwater flooding

Extreme storm, 2080 sea levels: Not in mapped flooding; Moderate storm, 2050 sea levels: Not in mapped flooding; Moderate storm, today's sea levels: Not in mapped flooding; Limited storm, today's sea levels: Not loaded (file format unreadable)

NYC Stormwater Flood Maps, as of 2024-07-03
What this counts

Mapped ponding touching the building footprint

  • BasementfoundNo basement

Elevators

Older records on file
Elevators

1 active elevator; latest periodic inspection Sep 2026

DOB NOW Elevator Safety Compliance, as of 2026-10-19 · See this building's elevators on NYC Open Data →
What this counts

Active elevator devices registered to this building ID

Rent and tenancy

On the state list
Rent stabilization

On the state's list of buildings with at least one rent-stabilized apartment (2024 registrations). Co-op or condo on the list: renters who moved in after conversion are not covered

Rent Stabilized Building Lists (2024 HCR registrations), as of 2025-11-30
What this counts

The list doesn't say which apartments are stabilized, and being listed isn't proof of current status. For a specific apartment, request its rent history from HCR

Energy

Energy

ENERGY STAR score 59 (2024 report)

Energy and Water Data Disclosure (Local Law 84), as of 2025-11-25
What this counts

Letter grades are issued by the city under Local Law 33 and posted near the building entrance; Blueflo shows the reported score only

General condition and all records

HPD violations

6 open: 6 about building conditions — walls, floors and stairs (3), other conditions (2), plumbing (1); 2 immediately hazardous (class C). 31 violations on record in all, 2001–2023 — the 6 most recent are listed here

Housing Maintenance Code Violations, as of 2026-10-19 · Read these violations in full at HPD Online →
What this counts

Open HPD violations inspected in the last 10 years; class C = immediately hazardous. Paperwork = failure to file, notify or certify

DOB violations

4 open: 3 about filings or paperwork, 1 older than 10 years

DOB Violations, as of 2026-10-19 · Read these violations in full at DOB →
What this counts

Open DOB, ECB and DOB NOW Safety violations, any date, one per violation. ECB class 1 = hazardous, class 2 = major

Resident complaints to the city

2 electrical, 1 doors or windows, 1 heat or hot water, 1 mold, 1 pests

Housing Maintenance Code Complaints and Problems, as of 2026-10-20 · See the complaints at HPD Online →
What this counts

HPD complaints received in the last 2 years; the list below is every complaint on record for the last three years

Permit history

55 permits since 1990

DOB NOW: Build – Approved Permits, as of 2026-10-19 · See every permit at DOB →
What this counts

DOB permits issued (DOB NOW and legacy BIS), one per job and work type; excludes sheds

Nothing on record

Gasno record
  • Gas pipingno recordNo open gas piping filing violations. Inspection results themselves are not published

Sources

23 datasets

Each date is when we last checked that dataset, not when the record itself was created.