1099 Osage (Tapiz at Mariposa)

Denver, Colorado

An affordable and high quality housing option for low-income seniors and people with disabilities.


Denver Housing Authority

Project Size

97,800 sf

LEED Certification

Pursuing LEED-NC Platinum

Professional Services

Master Planning

The 1099 Osage building is the first phase of the 18-acre South Lincoln Redevelopment for the Denver Housing Authority. The project is an eight-story, 100-unit housing complex (on 1 acre) for seniors and people with disabilities who have low incomes. On track for LEED Platinum certification, 1099 Osage includes more than 50 kw of photovoltaic panels across the full roof, along with a geothermal system. The entire project has achieved a 50% savings over ASHRAE standards by employing tight envelope, high performance windows and high efficiency mechanical and lighting. The geothermal was used with unit heat pumps. Outside the envelope of the building, cutting edge water quality and detention systems were designed and approved. Permeable paving and other systems like porous landscape detention solutions were integrated into many areas as well. The ground floor of the project has a community resource center, lobby and teaching kitchen. The average unit size is 542 sf, with almost all 1-bedroom units. The project is still in the process of achieving LEED Certification.

Meet the team

1099 Osage (Tapiz at Mariposa)


COO/Board Member
Commercial Market Principal

With more than 35 years of designing and managing award-winning architecture, construction and development projects, John Yonushewski is a natural leader. As RNL’s Chief Operating Officer, John keeps the firm running in top shape and consistently pushes us to do better for our teams, our clients and our communities.

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