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KOW research library

Find the records.
Start with the right source.

Building permits, inspections, zoning, property records, and environmental research. Search by location or the information you need.

59 resourcesLocal, county, state & federal sourcesNo KOW account required
5 resources matching your filters

Filters: Any keyword · All states · New York City, NY · All record types

Research checklist
  • Confirm the governing jurisdiction and parcel identifier.
  • Check current and legacy systems and save record identifiers.
  • Record the retrieval date and any unavailable documents.
  • Follow up with the responsible agency on missing or conflicting information.

Source references checked September 15, 2026. This directory does not verify property compliance, database completeness, or live availability.

New York City, NYAgency guide

ACRIS recorded property documents (opens external website in a new tab)

Recorded document images for Manhattan, Brooklyn, Queens, and the Bronx from 1966 onward.

Research notes

Staten Island land records require a different research route. A document search is not a title commitment.

Source checked September 15, 2026. Availability and document access can change; this is not a live status check.

https://www.nyc.gov/site/finance/property/acris.page

New York City, NYAgency guide

DOB NOW Public Portal (opens external website in a new tab)

NYC’s public portal for DOB NOW filings and compliance information.

Research notes

Public research and applicant services have different access requirements. Check BIS for historical records.

Source checked September 15, 2026. Availability and document access can change; this is not a live status check.

https://www.nyc.gov/site/buildings/industry/dob-now-public-portal-faqs.page

New York City, NYPublic website

HPD Online (opens external website in a new tab)

NYC housing records and available historical I-card images.

Research notes

HPD housing records and DOB building records serve different purposes. Review both where relevant.

Source checked September 15, 2026. Availability and document access can change; this is not a live status check.

https://hpdonline.nyc.gov/hpdonline/

New York City, NYAgency guide

NYC BIS (opens external website in a new tab)

Legacy building jobs, complaints, violations, inspections, and occupancy information.

Research notes

Research both BIS and DOB NOW. A record missing from one may be held in the other.

Source checked September 15, 2026. Availability and document access can change; this is not a live status check.

https://www.nyc.gov/site/buildings/dob/find-building-data.page

New York City, NYAgency guide

ZoLa zoning and land use (opens external website in a new tab)

NYC zoning and land-use mapping, with property identifiers and district information.

Research notes

Use the mapped district as a starting point. Review the Zoning Resolution and relevant approvals.

Source checked September 15, 2026. Availability and document access can change; this is not a live status check.

https://portal.311.nyc.gov/article/?kanumber=KA-02121

Before you search

An address is a starting point.

Confirm the governing jurisdiction and parcel identifier. Check current and legacy systems where records are split. A missing result does not prove that no permit, violation, or environmental concern exists.

KOW provides this curated directory, not the underlying government databases. Links may open a search tool, data catalog, or agency guide. Source review does not verify every record or logged-in function.

Research guides

New York City building-record research →Chicago permit and inspection research →San Diego development-record research →Understand the terminology →Need help with property due diligence? →