Plugin
Zoning Analysis
Buildable envelope analysis and 3D visualization from zoning data.
The problem
Calculating a buildable envelope means cross-referencing zoning regulations, cadastral data, and overlays. The process is manual, error-prone, and requires deep familiarity with local zoning mechanics — particularly NYC’s Zoning Resolution.
How it works
Two skills for zoning analysis and visualization. The analysis skill calculates buildable envelopes from local zoning data. The envelope skill generates an interactive 3D viewer from any zoning report.
Skills
| Skill | What it covers |
|---|---|
| Zoning Analysis: New York City, NY | FAR, height limits, setbacks, yards, lot coverage, permitted uses, parking, bonuses |
| Zoning Envelope | Interactive 3D viewer — exact lot polygon, extruded volumes, setback zones, height caps |
What it handles
- NYC — split zones, contextual districts, commercial overlays, special districts, Inclusionary Housing, Quality Housing, City of Yes
- 3D visualization — exact GIS lot polygon, multi-volume envelopes, scenario comparisons
Output
A structured markdown report with lot data, envelope calculations, and professional caveats — plus a machine-readable data block for the 3D viewer.
Install
Claude Desktop:
- Open Customize → Browse plugins
- Click + → Add marketplace from GitHub
- Enter
AlpacaLabsLLC/skills-for-architects - Install the Zoning Analysis plugin
Claude Code (terminal):
claude plugin marketplace add AlpacaLabsLLC/skills-for-architects
claude plugin install 02-zoning-analysis@skills-for-architectsManual:
git clone https://github.com/AlpacaLabsLLC/skills-for-architects.git
ln -s $(pwd)/skills-for-architects/plugins/02-zoning-analysis/skills/zoning-analysis-nyc ~/.claude/skills/zoning-analysis-nyc