Chris Goldammer is an economist, data scientist and independent builder working on urban data. His projects use New York City zoning, construction and property records to make changes in the built environment easier to explore.[2]
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Education
Links
Biography and toolbox
X · floor_per_area 
GitHub · cgoldammer Data science and urban-analytics consultant · Independent
Career
At Airbnb, Goldammer led cancellation-policy analysis through production algorithms and iteration. His independent work applies experimental design, causal inference and machine learning to urban questions.[2]
Contributions
Explore a city by changing its development assumptions
Potential.NYC visualizes air rights and lets a reader alter zoning assumptions to explore possible development. It turns an abstract discussion about permitted building capacity into a spatial comparison. Goldammer links it from his owned portfolio as one of his projects. The interface is useful for exploring a scenario; a hypothetical map does not itself establish approval for construction.[4]
Track construction from public records
CityTracker connects permits, filings and sales in a searchable view of changing buildings. Its interface includes townhouse conversions, accessory-dwelling-unit filings and architect searches. It brings related public records into a common view so a reader can investigate both a building and changes across the city.[5]
Tools, writing & talks
Apps
Start here
Potential.NYCpotential.nycAn interactive map for exploring New York City air rights and altered zoning assumptions.
Start with a familiar neighborhood and compare its displayed capacity under different assumptions. Treat the map as a scenario, then consult actual records.
Creator, linked from owned portfolio[2][4]Original source- CityTrackercitytracker.ai
A research interface connecting NYC construction filings, property changes and related participants.