Zoning Analysis

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 — whether it’s NYC’s Zoning Resolution or Uruguay’s TONE.

How it works

Three skills for zoning analysis and visualization across jurisdictions. The analysis skills calculate 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 Analysis: Maldonado, UY	FOS/FOT, height, setbacks, occupation factors, multi-lot scenarios
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
• Maldonado — 9 localities, 70 subzones, area-interpolated FOS/FOT, conditional setbacks, multi-lot scenarios (apareadas, englobamiento)
• 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:

1. Open Customize → Browse plugins
2. Click + → Add marketplace from GitHub
3. Enter AlpacaLabsLLC/skills-for-architects
4. Install the Zoning Analysis plugin

Claude Code (terminal):

claude plugin marketplace add AlpacaLabsLLC/skills-for-architects
claude plugin install 02-zoning-analysis@skills-for-architects

Manual:

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