NYC property research guide
How to research NYC DOB permits and job filings
A job filing describes proposed work; an issued permit authorizes a defined scope for a period. Neither alone proves the work was completed or acceptable.
Use both current and legacy systems
NYC moved many workflows from the Building Information System (BIS) to DOB NOW over time. Research frequently requires the DOB NOW job-filing dataset, DOB NOW approved permits, and legacy BIS permit issuance data.
Coverage dates and included work types differ. Record which datasets answered and which were unavailable rather than treating one feed as a complete permit history.
Distinguish filing from permit
A job application can be filed, amended, disapproved, withdrawn, or remain in process. A permit record should be read for permit type, work type, issuance and expiration dates, status, applicant, and the job number connecting it to the filing.
Descriptions are useful clues but can be abbreviated or amended. Open the current official job and permit record before relying on scope.
- Match job and permit numbers, BIN, and address.
- Keep filing, approval, issuance, expiration, and sign-off dates distinct.
- Look for related certificate-of-occupancy records when occupancy is part of the question.
What permits do not establish
An issued permit does not by itself prove work was performed, inspected, signed off, consistent with every other approval, or free of later enforcement. An absence of permits does not prove that no work occurred or that a permit was legally unnecessary.
Create a time-based review
Order filings, permits, inspections, violations, and occupancy records by their own dates. LotContext builds that evidence timeline while preserving source status and links; decisions still require verification with DOB and, when appropriate, architects, engineers, counsel, or inspectors.
Official sources
Open the publisher's current record and documentation before relying on a material item.
- DOB NOW Job Application Filings Official source · checked August 21, 2026
- DOB NOW Approved Permits Official source · checked August 21, 2026
- DOB Permit Issuance (legacy BIS) Official source · checked August 21, 2026
- DOB Building Information Search Official source · checked August 21, 2026
Related NYC property research guides
DOB NOW vs. BIS: where to search NYC building records
A practical comparison of DOB NOW and BIS, including which NYC permits, filings, violations, complaints, and occupancy records each system contains.
Read guide →How to find and read an NYC Certificate of Occupancy
Where to find NYC Certificates of Occupancy in DOB NOW and BIS, what floor-use records show, and what a missing or temporary certificate means.
Read guide →How to research NYC building violations
How DOB, OATH/ECB, and HPD violation records differ, how to read status fields, and what a records search cannot prove.
Read guide →Research the property with source status intact
LotContext organizes supported NYC public records into a private evidence workspace. Current free limits are 3 queries per rolling 24 hours and 20 per rolling 30 days.