Attribution: Maps using OpenStreetMap + Leaflet At CityTracker.ai, we love maps, and we create lots of them. We summarize tax lots, filings, permits, sales. Basically, everything we can get our hands on. On social media, a common question is: "How do you create these maps"? And the real
Total count: 13 Last updated: 12/26. (*) Data: Filings for new buildings since June 2025 With the City of Yes, NYC legalized ancillary dwelling units (ADU, in other cities usually called accessory dwelling units). And while the rollout has been messy, it looks like we're finally seeing action:
There's lots of chatter around a single new filing in Staten Island, see initial news and organized protest, including a Mayoral candidate. What's happening at 65 Uncas Avenue? A developer asked (see filing 520471891) for a lot split, taking the zoning lot from one to five
On December 5, 2024, the NYC city council passed the City of Yes (COY) rezoning plan, the largest zoning change in many decades, which aims to create 80,000 new units over the next decade. This rezoning changed so much that many ideas got completely lost in the press coverage.
City Tracker is an API-first company. In this post, we cover key technical features of our API. Endpoints in production (status 10/29/2025): * tax_lots * permits In progress: * filings * companies These API endpoints are as consistent as possible: Each of them returns a list of results satisfying filter criteria
Our goal is to help you find good jobs that are about to come up. Essentially, this is a problem of prediction. And to do that well, we must first understand how the process works, especially for new construction. Here, we provide a non-technical overview of our approach, with technical
As part of our series to predict permitting, we zoom in on new construction. A crucial part of predicting is to understand the DOB permitting process: It starts with a filing. If approved, a single filing allows pulling possibly many permits, each with their own issuance and expiration date. For
We know where new residential development is happening. But it turns out that this, usually, isn't what you want to know. What you really need is to know where new development will happen. Otherwise, you're just chasing the past. At CityTracker, we've developed a