Multiplex: Small


A medium structure that consists of five to 10 side-by-side and/or stacked dwelling units, typically with one shared entry or individual entries along the front.

Typical Specifications

Lot Front-loaded Rear-Loaded
Width* 60–75 feet 50–65 feet
Depth* 100–150 feet 100–150 feet
Area* 6,000–11,250 sq. ft. 5,000–9,750 sq. ft.
  0.14–0.26 acres 0.11–0.22 acres
Number of Units 6–10 units 6–10 units
Typical Unit Size 500–1,200 sq. ft. 500–1,200 sq. ft.
Net Density 23–58 du/acre 26–70 du/acre
Gross Density 19–56 du/acre 21–62 du/acre
Parking Ratio*
On-street Spaces 2–3 2–3
Off-street Spaces 1.5 per unit max. 1.5 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 36–56 feet
Depth 32–60 feet
Height (to eave)* 20–24 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.

Front Loaded

Ideal Specifications

Width 50 feet
Depth 150 feet
Area 7,500 sq. ft.
  0.17 acres
Number of Units 8 units
Typical Unit Size
Net Density 46.4 du/acre
Gross Density 38.6 du/acre
Parking Ratio 0.6 per unit
On-street Spaces 2
Off-street Spaces 3
Front 20 feet
Side 0 feet and 10 feet
Rear (main building) 68 feet
Between Main and Accessory Buildings n/a
Building Size 5,208 sq. ft.
Width 42 feet
Depth 62 feet
Height (to eave) 28 feet

The following example(s) show this housing type documented as real-world examples as they exist today. NOTE: Documented examples may be not be up to today’s local building code standards. See the Idealized tab for up-to-date specifications in line with modern building standards.