The Architecture of Segregation:
Zoning Policy
Euclidean Zoning
The rigid separation of residential, commercial, and industrial uses. Named after Euclid v. Ambler (1926).
Form-Based Codes
Regulating the physical form and scale of buildings rather than strictly their use. A modern alternative.
Spot Zoning
Applying arbitrary zoning to a single parcel, often for political reasons rather than planning logic.
The Fiscal Impact of R-1
R-1 (Single-Family Residential) is the dominant zoning category in North America, covering 70-80% of residential land in most cities. It mandates low density, high infrastructure per capita, and strict separation from commercial uses.
| Metric | R-1 Zoning | Mixed-Use (MU-1) |
|---|---|---|
| Units per Acre | 3-5 | 30-50 |
| Tax Yield/Acre | $8,000 | $145,000 |
| Transit Viability | Impossible | Highly Viable |