Cross-section
What is actually being done to the building?
A filing records the kind of job — a new building, an alteration, a demolition — but it also records what the work physically involves. That second layer cuts across the first, and it is the only way to ask a question like “where is solar going in” without reading every alteration in the city.
One filing can carry several of these at once: excavation, foundation and structural work often travel together on the same job. Counts therefore overlap by design.
General construction
What general construction is filed in New York City?
The broadest category on a filing: interior and envelope work that is not separately flagged.
Structural work
What structural work is filed in New York City?
Work that touches the frame a building stands on — the filings most likely to change what a building can carry.
Earthwork and excavation
Where is excavation filed in New York City?
Excavation and site work — usually the first visible sign that something is coming.
Foundation work
What foundation work is filed in New York City?
Footings, underpinning and the work that happens before a building goes up.
Solar installations
Where is solar being installed in New York City?
Filings that record photovoltaic work on a roof or facade, anywhere in the five boroughs.
The other layer
By the kind of job filed.
Built from DOB NOW: Build – Job Application Filings (w9ak-ipjd), accessed Sep 5, 2026.