Triplex: Stacked
Description
A small-to-medium (3 to 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.Typical Specifications
| Lot | Front-loaded | Alley-Loaded |
| 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 | |
| Units | ||
| Number of Units | 3 | 3 |
| Typical Unit Size | 700–1,600 sq. ft. | 700–1,600 sq. ft. |
| Density | ||
| Net Density | 13–32 du/acre | 15–38 du/acre |
| Gross Density | 11–30 du/acre | 13–35 du/acre |
| Parking | ||
| Parking Ratio* | 1–2 per unit | 1–2 per unit |
| On-street Spaces | 1–2 | 1–2 |
| Off-street Spaces | 1 per unit max. | 1 per unit max. |
| Setbacks | ||
| Front* | 10–25 feet | |
| Side* | 5–12 feet | |
| Rear (main building)* | 5-30 feet | |
| Between Main and Accessory Buildings | 10–20 feet | |
| Building | ||
| Building Size | ||
| Width | 24–40 feet | |
| Depth | 40–55 feet | |
| Height (to eave)* | 30–45 feet | |
| Floors | 3-3.5 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.
Alley Loaded
Ideal Specifications
| Lot | |
| Width | 40 feet |
| Depth | 105 feet |
| Area | 4,200 sq. ft. |
| 0.096 acres | |
| Units | |
| Number of Units | 3 units |
| Typical Unit Size | 1,008 sq. ft |
| Density | |
| Net Density | 31 du/acre |
| Gross Density | 23 du/acre |
| Parking | |
| Parking Ratio | 1.67 per unit |
| On-street Spaces | 2 |
| Off-street Spaces | 3 |
| Setbacks | |
| Front | 15 feet |
| Side | 5 feet |
| Building | |
| Width | 24 feet |
| Depth | 42 feet |
| Height (to eave) | 30 feet |
| Floors | 3 stories |
Front Loaded
Ideal Specifications
| Lot | |
| Width | 45 feet |
| Depth | 115 feet |
| Area | 5,175 sq. ft. |
| 0.119 acres | |
| Units | |
| Number of Units | 3 units |
| Typical Unit Size | 1,008 sq. ft |
| Density | |
| Net Density | 25 du/acre |
| Gross Density | 20 du/acre |
| Parking | |
| Parking Ratio | 1.33 per unit |
| On-street Spaces | 1 |
| Off-street Spaces | 3 |
| Setbacks | |
| Front | 15 feet |
| Side | 5 feet |
| Building | |
| Width | 24 feet |
| Depth | 42 feet |
| Height (to eave) | 30 feet |
| Floors | 3 stories |
