What if government inspections worked like a marketplace? Discover how Washington D.C. cut inspection wait times from weeks to days by rethinking (not just digitizing) the process.
Explore the series:
Part 2: Marketplace for Inspections
Part 3: Real-Time Permits and Inspections
Part 4: Building Government Services People Can Actually Use
In Washington D.C., building inspections are a critical part of the construction process. Without them, projects cannot move forward. Before digital transformation, this process created significant delays that affected not only contractors and developers, but also the city’s broader economic activity.
Inspection scheduling was slow and difficult to manage. Contractors often waited weeks to secure an appointment, while manual coordination created inefficiencies across the system. In many cases, delays in inspections held up construction projects where each day could cost more than $100,000.
The challenge was not simply operational. It reflected deeper structural limitations in how inspections were organized and delivered.
Before the introduction of a digital solution, the third-party inspection system relied entirely on manual processes. Contractors had no central database to identify available inspectors, and coordination required multiple phone calls and emails. This fragmented approach made it difficult to match demand with available capacity.
Inspection scheduling delays averaged four weeks, creating bottlenecks across construction timelines. At the same time, the system lacked transparency. There was no standardized way to compare inspectors, track performance, or ensure consistent service quality.
Payments were also inefficient. Processing often took two to four weeks, and there was no unified platform to manage transactions or maintain records. The absence of digital infrastructure made it difficult for the Department of Buildings to monitor compliance, oversee performance, or generate reliable insights.
These limitations affected all stakeholders and prevented the system from scaling with increasing demand.
To address these challenges, the Department of Buildings partnered with platformOS to redesign the inspection process. Rather than digitizing existing workflows, they introduced a new model based on a centralized digital marketplace.
The result was Tertius, a platform that connects contractors, inspectors, and government oversight within a single system. Through this platform, contractors can browse certified inspectors, view real-time availability, and book inspections instantly.
Tertius also integrates communication and payments into the same environment. Users can exchange messages within the platform, while payments are processed directly, eliminating the need for manual invoicing and reducing delays.
This approach replaced fragmented coordination with a structured and transparent workflow.
The introduction of Tertius delivered immediate and measurable improvements.
Inspection wait times were reduced from four weeks to two days, representing a 93% improvement in scheduling speed. At the same time, inspection volume increased significantly, with annual inspections rising by approximately 67%.
Payment processing was also transformed. What previously took weeks became near-instant, improving cash flow and reducing administrative overhead. The platform introduced complete transparency into the inspection process, with centralized data and real-time visibility for all participants.
Over time, the platform supported more than 40,000 construction projects and facilitated over 23,000 inspections, generating more than $2 million in revenue while helping to accelerate billions of dollars in development activity.
These results demonstrate how digital platforms can improve both operational efficiency and economic outcomes.
Beyond efficiency, Tertius introduced new levels of accountability into the inspection process.
The platform includes features such as inspector ratings and reviews, allowing contractors to make informed decisions. Geolocation-based check-ins verify on-site presence, ensuring compliance and reducing disputes. At the same time, centralized data enables the Department of Buildings to monitor performance and identify patterns across inspections.
This combination of transparency and oversight supports higher quality service delivery while maintaining regulatory control.
Tertius was not only a solution to a specific problem, but also the first step in a broader transformation.
Because it was built on platformOS, the platform provided a scalable and flexible foundation for future development. The same architecture could support additional workflows, integrate new features, and adapt to evolving regulatory requirements.
This made it possible for the Department of Buildings to expand its digital transformation into other areas, including permit reviews and additional inspection processes, without rebuilding systems from the ground up.
The transformation of building inspections in Washington D.C. demonstrates how rethinking service delivery can lead to meaningful improvements.
By introducing a marketplace model, the Department of Buildings with platformOS created a system that connects stakeholders more effectively, reduces delays, and improves transparency. The result is a more efficient and scalable process that supports both operational performance and economic growth.
At the same time, the use of a shared platform enables continuous improvement, allowing new capabilities to be added as needs evolve.
With inspections transformed, the Department of Buildings turned to a more complex challenge: Certificate of Occupancy reviews.
In the next article, we’ll explore how centralized workflows and AI-powered features reduced approval times from weeks to days.
How centralized workflows and AI reduced permit approval times, and transformed compliance processes
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