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No red flags found. Standard due diligence recommended.
671 Sheffield Avenue is a two-family home built in 1920 in Brooklyn with 2 residential units. It carries a Grade A health score — one of the cleaner records in its peer group, with no open violations or active complaints. Active permit activity suggests ongoing maintenance investment. Our analysis reviewed 96 records across 26 public data sources, benchmarked against similar small prewar residential buildings in NYC.
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No open violations, no complaints, no liens — this building is well-maintained and fully compliant.
GENERAL — COOKING GAS [EMERGENCY] (Apt 1)
Structural Stability
HEATING — HEAT RELATED [EMERGENCY] (Apt 2)
HEATING — HEAT RELATED [EMERGENCY] (Apt 2)
APPLIANCE — ELECTRIC/GAS RANGE [NON EMERGENCY] (Apt 1)
DOB Complaint #59
Tax Year 2027 Market Value: $781,000
Tax Year 2026 Market Value: $752,000
Tax Year 2025 Market Value: $628,000
Minor Alteration
Minor Alteration
Minor Alteration: ROOFTOP SOLAR INSTALLATION. NO CHANGE TO USE, OCCUPANCY OR EGRESS.
Minor Alteration: APPLICATION FILE FOR CELLAR TO BE USED AS AN ACCESSORY AREA TO 1ST FLOOR AND CORRECT ECB VIOLATION#
SMIS
COOKING GAS
ELECTRIC/GAS RANGE
Loud Music/Party
DOB NOW: Inspection
Construction: WORK W/O PERMIT. AT TIME OF INSPECTION OBSERVED AT EXP1 AN AWNING ATTACHED TO THE FACADE BY ANCHORS — $500 penalty
Initial (Job PC7084194)
This report is an informational tool based on publicly available government records and does not constitute a “consumer report” under the Fair Credit Reporting Act. Building grades are editorial opinions and should not be used as the sole basis for housing, lending, or employment decisions. Data sourced from HPD, DOB, DOF, ECB, FDNY, 311, and other NYC agencies. Report errors to data@openstoop.com. See our Terms and Privacy Policy.