Pull the last 30 days of Department of Buildings permit filings citywide and you get 12,601 of them, worth $3.7 billion combined. Manhattan alone accounts for $1.84 billion of that — just under half the city's entire permit value — off 4,581 filings, a little more than a third of the citywide count.

Brooklyn tells a completely different story. It filed almost as many permits as Manhattan, 3,588, but for $692 million — less than 40% of Manhattan's dollar total on a similar count. Run the math and the average Brooklyn permit runs about $193,000. The average Manhattan permit runs more than double that, north of $400,000. Same city, same permit system, two different markets: one running on volume, one running on a handful of very expensive jobs.

“Same borough system, two completely different markets — one running on volume, one running on a handful of very expensive jobs.”

The bigger pattern is what kind of work these permits actually cover. Of the 12,601 filings, 9,326 — three out of every four — are alterations. New buildings account for just 1,451, barely more than one in ten. Add the 989 Alteration CO filings and the 392 jobs keeping existing elements in place, and the picture's clear: this city is renovating itself far more than it's building itself from scratch, at almost any dollar size you look at.

The dollar totals get pulled by a short list of very big filings. An $86.2 million CUNY alteration on Chambers Street. An $82.1 million alteration certificate of occupancy on Broadway. A $67.75 million job on Broad Street, a $57.5 million one on Water Street — all Manhattan, all renovation work, not ground-up. Queens has its own headline number: a $54.3 million New York City School Construction Authority new building on 175th Street, and a $49.6 million USTA alteration on Roosevelt Avenue.

If you're an interior, mechanical, or gut-renovation trade, Manhattan's still where the big-dollar single jobs concentrate. But Brooklyn and Queens are where the volume lives — job after job in the low hundreds of thousands, which is a different bidding strategy than chasing one $80 million building. And if your shop only bids ground-up new construction, know the market you're actually standing in: three-quarters of what got permitted this month isn't that.

This is the Department of Buildings' own permit-issuance data for the trailing 30 days. A filing is a green light to start work, not a promise the job starts on schedule or comes in at the size on paper — treat this as the pipeline's own count, not a completion record.