Bitarchitects updated an existing residential building to improve basement safety and meet egress code requirements. To achieve this goal, the team focused on adding a new window well for an existing basement bedroom, along with the structural and space changes needed to provide a safe exit. As a result, these improvements enhanced safety and usability while preserving the existing structure above.

First, the team added a new exterior window well next to the basement bedroom. This addition brought more natural light into the space and improved ventilation. In addition, it provided a safer emergency exit for the basement bedroom. Together, these benefits improved the room’s safety and usability.

Along with the window well, Bitarchitects revised the existing stairs connecting the basement to the first floor. Specifically, the team rotated the stairs to make room for the new window well. As a result, both features worked together without blocking access. Furthermore, this adjustment maintained a clear, code-compliant exit path and improved movement between floors.

To support these changes, the team added a new metal post to carry the loads affected by the revised stair layout and other structural adjustments. More specifically, the design team positioned the post to transfer loads safely and strengthen the affected framing. At the same time, this solution avoided unnecessary changes to the existing structure.

Meanwhile, Bitarchitects kept the first- and second-floor layouts unchanged, except for the small adjustments needed to accommodate the stair changes and add smoke detectors. Therefore, the upper floors retained their existing layout and design. Instead, the team focused the major changes on the basement and the nearby stair area.

Overall, Bitarchitects improved basement safety, exit access, and structural support while making minimal changes to the existing home. By balancing building code requirements, structural needs, and the original design, the team created a safer and more functional living space. Ultimately, these targeted improvements preserved the home’s overall layout while addressing the basement’s safety and access needs.

Project Location:

Washington, DC

Project Type:
Residential: Multi-Family Residential Building

Project Valuation:
616,306.00 USD

Built-Up Area:
4,046.47 SF

Construction Type:
Type III

Project Zoning:
RA-1

Number of Floors:
2 + Basement

Code:

2017 Washington DC Building Code