101 Constitution Avenue Building Upgrades | Washington, DC

The lobby renovation at 101 Constitution Avenue enhances the building’s first impression with a sleek, contemporary design that reflects its premier status. A comprehensive elevator modernization added three new elevator cars extending to the penthouse level and retrofitted three existing cars with rear entrances. These upgrades seamlessly connect the lobby and restaurant levels to the new penthouse amenity space, improving vertical circulation and tenant accessibility. The modernization supports enhanced building performance and elevates the overall tenant experience.

At the core of the building transformation is a state-of-the-art, two-story fitness center designed to promote tenant wellness and support a healthier work environment. This premier amenity offers an elevated experience with modern equipment and spacious layouts tailored for active professionals. The installation of an interconnecting stair enhances spatial flow and accessibility, seamlessly linking multiple levels and reinforcing the building’s commitment to functional, wellness-focused design.

The crowning achievement of the renovation was the complete transformation of the rooftop into a dynamic indoor-outdoor amenity space. This reimagined area features a green roof that enhances energy efficiency and supports stormwater management—meeting Washington, D.C.’s green building requirements and achieving a waste diversion rate of over 50%. A standout rooftop event space was introduced, highlighted by a custom millwork ceiling that blends architectural beauty with functional performance. The space also includes an operable radius storefront, offering sweeping panoramic views of the D.C. skyline. Integrated MEP systems and a fully customized lighting package ensure optimal comfort, efficiency, and flexibility for a variety of tenant and event uses.

Faced with a critical inauguration deadline, the DPR team partnered closely with the owner to accelerate the project schedule by six weeks. Midway through construction, significant design revisions emerged, prompting the need for a new, design-assisted roofing solution. Despite the complexity of these changes, DPR swiftly developed and implemented the revised roofing system without impacting the overall timeline. Through proactive coordination, agile problem-solving, and deep technical expertise, the team maintained schedule integrity and successfully delivered all key milestones on time.

A key challenge of the renovation involved the full modernization of 12 elevators, including the vertical extension of three elevator shafts to reach the newly constructed rooftop amenity space. Extending these shafts by two floors required extensive structural reinforcement to support the added height and functionality. DPR’s design-assisted approach ensured seamless integration of the new systems while maintaining safety, performance, and schedule integrity. This modernization enhances vertical connectivity throughout the building and supports a more efficient and accessible tenant experience.

Executing a comprehensive renovation within an occupied building required strategic planning and precise coordination to minimize disruption to daily operations. DPR implemented a phased construction schedule that allowed large-scale demolition and build-out activities to occur simultaneously across multiple levels. To maintain a safe and functional environment for tenants, the team deployed enhanced safety protocols, noise mitigation strategies, and clear communication plans. This approach ensured uninterrupted building use while delivering high-quality results on schedule.

To meet a critical inauguration deadline, DPR expedited the project timeline by six weeks through fast-tracked scheduling and close collaboration with the owner. When significant design changes emerged mid-project, the team swiftly developed and implemented a delegated-design roofing system to address new requirements without impacting progress. Through proactive problem-solving, agile decision-making, and seamless coordination with all stakeholders, DPR maintained project momentum and successfully delivered on time.

To safely support the elevator modernization, DPR implemented targeted structural upgrades using carbon fiber-reinforced polymer (CFRP) and custom-fabricated steel supports. These high-strength, lightweight materials minimized additional load on the existing structure while delivering the durability required for extended elevator shafts. This strategic reinforcement preserved structural integrity and enabled construction to proceed without compromising safety, stability, or schedule. The solution reflects DPR’s expertise in complex renovations and innovative engineering.

To enhance project oversight and accelerate delivery, DPR leveraged modern technology including a Verkada camera system for real-time progress tracking and remote monitoring. This provided valuable visibility to owners and stakeholders throughout construction. Virtual Design and Construction (VDC) tools—such as laser scanning and 4D modeling—were used to manage existing conditions and accurately plan the project layout. A unique approach integrated 4D models with financial data to forecast cash flow, offering the owner a clear and actionable strategy. DPR’s Field Technology Group (FTG) enabled daily coordination by rapidly scanning and updating models to resolve clashes, expedite design decisions, and maintain the fast-track schedule.

The project was completed with over 205,000 man-hours worked without a single lost-time incident—an achievement that underscores DPR’s unwavering commitment to safety. This milestone was made possible through rigorous planning, comprehensive on-site training, and strict adherence to safety protocols. As a result, building operations continued uninterrupted, and tenant satisfaction remained high throughout the construction process. DPR’s proactive safety culture ensured a secure environment for all stakeholders while maintaining productivity and performance.

DPR’s self-perform work (SPW) capabilities played a critical role in supporting the project’s fast-paced schedule and complex sequencing. Operating across multiple floors in an occupied facility required precise coordination and adaptability. The SPW team’s flexibility enabled real-time adjustments and streamlined execution. By providing a single DPR point of contact for all local scopes, communication was simplified and integration with the general contracting team was significantly improved—resulting in greater efficiency, reduced risk, and enhanced project delivery.

Despite the complexity and tight deadlines, DPR successfully maintained the original project schedule, completing the rooftop event venue on time and ready to host a high-profile inauguration. Through meticulous planning, agile execution, and close coordination with stakeholders, the team delivered a seamless construction experience without compromising quality or design. This achievement highlights DPR’s commitment to schedule certainty and excellence in delivering high-performance spaces.