Calculateur de Densité de Zonage — Formule

## Zoning Density Calculations

Zoning regulations control how many dwelling units or how much building area can be placed on a given parcel. Density is limited by multiple factors, and the most restrictive one governs.

### Density Limiters

1. **Maximum density per acre**: The zoning code specifies a maximum number of units per acre (e.g., 8 units/acre)
2. **Minimum lot size**: Each unit must have a minimum lot area (e.g., 7,200 sq ft)
3. **Road and open space dedication**: Typically 20-30% of the parcel is dedicated to roads, sidewalks, and open space
4. **Setbacks and coverage**: Building footprint limits further constrain density

### Calculation Method

1. Subtract road/open space dedication from total parcel area
2. Calculate units by dividing net area by minimum lot size
3. Calculate units by multiplying acreage by maximum density
4. The lower number is the maximum allowed

### Density Bonus Programs

Many jurisdictions offer density bonuses (10-35% more units) for including affordable housing, green building features, or transit-oriented design.