Dwelling Units per Acre Formula:
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Dwelling units per acre (DU/acre) is a measure of residential density that calculates how many housing units are built on one acre of land. It's a key metric in urban planning and zoning regulations.
The calculator uses the simple formula:
Where:
Explanation: This calculation provides the average number of housing units per acre of land, which helps planners assess development density.
Details: DU/acre is crucial for zoning decisions, infrastructure planning, and assessing the impact of development on communities and the environment.
Tips: Enter the total number of dwelling units and the land area in acres. Both values must be positive numbers.
Q1: What's considered low, medium, and high density?
A: Typically: Low (1-5 DU/acre), Medium (6-15 DU/acre), High (16+ DU/acre), though definitions vary by location.
Q2: Does this include common areas and roads?
A: Typically uses net land area (excluding roads, open spaces), but some jurisdictions use gross area - check local regulations.
Q3: How does this relate to population density?
A: To estimate population density, multiply DU/acre by average household size for the area.
Q4: What's a typical DU/acre for single-family homes?
A: Single-family zones often range from 1-8 DU/acre, depending on lot sizes.
Q5: How does this differ for mixed-use developments?
A: Mixed-use may calculate residential density separately or combine with commercial floor area ratios.