Multiplex: Medium


A detached (2 to 2.5 story) structure that consists of 5 to 12 dwelling units arranged side-by-side and/or stacked, typically with a shared entry from the street. This type has the appearance of a medium-to-large single-unit house and does not include a rear yard.

Typical Specifications

Lot Front-loaded Alley-Loaded
Width* 96–120 feet 75–100 feet
Depth* 100–150 feet 100–150 feet
Area* 9,600–18,000 sq. ft. 7,500–15,000 sq. ft.
  0.22–0.41 acres 0.17–0.34 acres
Number of Units 7–19 units 7–19 units
Typical Unit Size 500–1,200 sq. ft. 500–1,200 sq. ft.
Net Density 37–55 du/acre 48–70 du/acre
Gross Density 30–50 du/acre 35–63 du/acre
Parking Ratio* 1-1.5 per unit 1-1.5 per unit
On-street Spaces 3–4 3–5
Off-street Spaces 1.25 per unit max. 1.25 per unit max.
Front* 10–25 feet
Side* 5–12 feet
Rear (main building)* 30–60 feet
Between Main and Accessory Buildings 10–20 feet
Building Size
Width 50–80 feet
Depth 35–75 feet
Height (to eave)* 25–40 feet
Floors 2-3 stories
* 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.

Front Loaded