A duplex is a small- to medium-size building that consists of two dwelling units, one next to the other, both of which face and are entered from the street.

Ideal Specifications

Lot  
Width 50 feet
Depth 130 feet
Area 6,500 sq. ft.
  0.15 acres
Units
Number of Units 2 units
Typical Unit Size 612 sq. ft.
Density
Net Density 13.4 du/acre
Gross Density 10.3 du/acre
Parking
Parking Ratio 2 per unit
On-street Spaces 2
Off-street Spaces 2
Setbacks
Front 30 feet
Side 10 feet
Rear (main building)
Between Main and Accessory Buildings
Building
Building Size 1,224 sq. ft.
Width 36 feet
Depth 34 feet
Height (to eave) 14 feet