Code: ST (DOB work type code)
Description: (Structural Work Type) is the label the NYC Department Of Buildings uses for permit applications and filings that mainly involve changes to a building’s structural parts, such as beams, columns, slabs, or foundations. It is one of the standard DOB work type codes used in DOB NOW: Build and other DOB systems.
Practical Meaning: ST means your project includes structural work, so your design professional must follow DOB rules for structural safety, drawings, and permits, and you may not be able to treat the job as a simple non-structural repair. Structural jobs often face closer review, more detailed plans, and stricter inspection steps, which can affect cost, timing, and what other work types must be filed together.
Where You May See It: DOB NOW: Build filings, BIS permit records, PW1 and other DOB forms, structural drawings and reports, emails from your architect or engineer about DOB filings.
Why It Matters: If your work is coded as ST, unpermitted or non-compliant structural changes can lead to stop work orders, civil penalties, and expensive legalization steps later. Lenders, insurers, buyers, and co-op or condo boards may also ask if structural work was properly filed under ST before refinancing, selling, or approving major alterations.