DescriptionA small-to-medium (3.5-story) sized detached structure that consists of 3 dwelling units typically stacked on top of each other on consecutive floors, with one entry for the ground floor unit and a shared entry for the units above. This type does not include a rear yard.
|Width*||40–65 feet||40–55 feet|
|Depth*||100–150 feet||85–150 feet|
|Area*||4,000–9,750 sq. ft.||3,400–8,250 sq. ft.|
|0.092–0.22 acres||0.078–0.19 acres|
|Number of Units||3||3|
|Typical Unit Size||700–1,600 sq. ft.||700–1,600 sq. ft.|
|Net Density||13–32 du/acre||15–38 du/acre|
|Gross Density||11–30 du/acre||13–35 du/acre|
|Parking Ratio*||1–2 per unit||1–2 per unit|
|Off-street Spaces||1 per unit max.||1 per unit max.|
|Rear (main building)*||5-30 feet|
|Between Main and Accessory Buildings||10–20 feet|
|Height (to eave)*||30–45 feet|
|* Varies based on context|
Idealized specifications take the best characteristics of this type and update them for today’s typical building standards, serving as a model for new development.