EXAMPLES

The first three-story, single-stair residential building permitted in Austin under the city's 2021 building code adjustment. Features an open central staircase dividing the building into two volumes, enhancing space efficiency and community interaction.

A five-story mixed-use building with 9 residential units arranged around a central courtyard. It utilizes a single-stair design to maximize community interaction and space efficiency. Includes a rooftop urban farm.

A five-story condominium developed by Habitat for Humanity. It features a rare single-stair design for its height, providing affordable homeownership options in the Capitol Hill neighborhood.

A luxury four-story condominium project. With only two units per floor, each home enjoys windows on three sides, made possible by the efficient single-stair layout on a tight urban lot.

A seven-story building on a steep hillside. It uniquely stacks two separate single-stair sections: an enclosed stair for the lower floors and an open stair for the upper floors, each exiting at different ground levels.

Twin early-1900s single-stair apartment houses turned cooperative; retrofitted with exterior fire escapes after the 1906 Fire Escape Act; maintained as single-stair typology through successive renovations.

A four-story building comprising 33 Small Efficiency Dwelling Units (SEDUs). The design maximizes natural light with most apartments configured as corner units, demonstrating efficient use of space.

1960s modernist riverfront complex; south tower uses a European-style single circulation core (scissor-stair + elevator) serving larger through-units. Multiple renovation cycles over ~60 years with a quasi single-core layout.

A four-story building on a narrow lot featuring a single egress stair serving two stacks of five units. Each unit has a separate entrance and no shared walls, optimizing privacy and natural light. Built Green 4-Star certified.

A four-story apartment building with a central exterior stairway serving four units per floor. This design eliminates corridors, achieving a high building efficiency of 91.4% and allowing for dual-aspect units.

WW2 garden apartments: narrow 4-story buildings with single-stair access per entrance; built under a waiver for 4-story single-stair. Incrementally renovated and converted over decades (condo/co-op), an ongoing single-stair retrofit story.

A large residential complex in Denver's Congress Park neighborhood. Represents the evolving landscape of higher-density housing in the region.

A historic garden apartment complex spanning a city block. It consists of eight interconnected buildings with a U-shaped plan around a massive private garden. A classic example of the Point Access Block typology.