When the MTA becomes your reviewer
New York is built on top of the subway. In much of the city, the ground your project sits on is also the roof of something the MTA operates, and any work that could reach it has to be reviewed before it starts.
This is a separate review from DOB and DOT, run by a separate agency, on its own timeline. It is also the one people discover latest, usually when a filing comes back asking for an MTA approval nobody budgeted time for.
MTA review does not run on the same clock as Buildings. If your site is anywhere near subway infrastructure, this filing should be moving before the DOB job is approved, not after. It is the single most common cause of a schedule slipping on an otherwise clean project.
What triggers a review
Subway structures
Tunnels, box structures, and the walls and roofs of anything the MTA operates below grade. Excavation, underpinning, piling, and foundation work near these need review before they proceed.
Station entrances
Stairs, canopies, and entry structures at street level. Work that occupies, obstructs, or alters the space around an entrance affects both public access and emergency egress, and the MTA reviews it accordingly.
Zone of influence
This is the one that catches people. You do not have to touch MTA property to trigger a review. If your excavation, dewatering, or foundation work falls within the zone where it could affect their structure, that is enough, and the analysis showing what the effect will be is part of the submission.
Vent gratings and sidewalk elements
Ventilation gratings, sidewalk hatches, and the below-grade elements that surface in the public way. Work over or adjacent to them, including sheds, staging, and street occupancy, needs approval.
Track-adjacent work
Anything in proximity to live track brings its own constraints on access, timing, protection, and coordination with operations. These filings carry the most conditions and the least flexibility.
What we do
We prepare the submission, draw what the agency needs to see, and carry it through review. That includes coordinating with what has already been filed at DOB and DOT, so the three sets tell the same story about the same site.
Where the review raises conditions, and it usually does, we handle those rather than handing them back to you.
How it fits the rest of the job
MTA work rarely arrives alone. A site near a station is typically also a site with a sidewalk shed, a DOT occupancy permit, a site safety plan, and adjacent property to protect. Filing these in isolation is how a project ends up with four approved plans that contradict each other.
We file the whole set, which means the drawings agree.