By Melissa Marsh - 1st May, 2026

From Smart to Sentient: An AI Roadmap for the Attuned Workplace

In the evolving landscape of real estate and facility management, the definition of a "smart" building is undergoing a radical transformation. As Melissa Marsh, founder of PLASTARC, argued at Tradeline’s Space Strategies conference, the goal is no longer connection; it’s engagement. While smart buildings focus on data production and basic optimization, sentient buildings prioritize the human experience, evolving into responsive systems that learn from behavior and anticipate needs.

“ The smartest workplace in the world is not the most automated, but the most attuned.

The built environment has historically functioned as a static asset, but today’s workforce operates in a high-speed, AI-enabled digital reality. This creates a significant gap: "At the end of the day, the built environment lags the AI workday that our employees, students, and customers are all beginning to expect," Marsh notes. To bridge this, leaders must view buildings as platforms for service and relationships. Imagine a room that senses a rise in CO2 levels and suggests its occupants take a break or move to an adjacent, cooler space—operating less like infrastructure and more like a personal assistant or wellness app.

“ We have the opportunity for an AI-enabled building to operate like the best concierge—the one who knows your name, who you’re friends with, what you’re working on, and what your biggest challenges are.

The Digital Human as the Seventh Layer

Expanding on Stewart Brand’s classic "Six Layers" of architecture (Site, Structure, Skin, Services, Space Plan, and Stuff), Marsh proposes a new Seventh Layer: Software in the hands of a digitally enabled human. In this framework, occupants are not merely "loads" to be managed but active participants. With an average of 30 sensors per smartphone, the people in the building are effectively mobile sensor nodes. Future-ready portfolios treat these occupants as active participants whose digital interactions help configure and refine the physical environment.

Intelligence Before Artificial Intelligence

A critical roadblock to AI adoption is the lack of "foundational intelligence"—the shared, computable definitions of success. AI cannot optimize a workplace if the organization hasn't defined what "good" looks like. This requires a shift in metrics: moving from raw light levels to visual comfort, and from basic temperature setpoints to thermal comfort.

People vote with their feet in terms of the performance and quality of the spaces they choose to use. PLASTARC data proves that these qualitative attributes drive performance. In "A vs. F" space analyses, environments that scored highly for tech capability, transparency, and natural light saw ten times the utilization of their lower-scoring counterparts. As Marsh challenges, “Why would we be putting in a building so many of these [F] spaces and cluttering up our floor plans with those?”

The journey toward a sentient portfolio follows a distinct maturity curve, moving from fragmented knowledge to searchable digital records, and eventually to an interoperable data spine where AI supports predictive analytics. The final stage is UX-Enabled, where the building provides a clear "give/get" value proposition—exchanging data for tangible benefits like better wayfinding or improved comfort. When asked about employee responses to data collection, Melissa explained the importance of providing clear, immediate value to users.

“ People do not stand on the corner and announce their location unless they’re looking for an Uber or Lyft, and then you expect it to turn up. If there’s a clear give and get, then it’s going to make a lot more sense.

It’s not the data that’s fragmented, it’s us

Technology is rarely the primary barrier to this vision; rather, it is fragmented data ownership. Many portfolios struggle because their underlying data is not "decision-ready." Marsh suggests that the most urgent work for leadership is not a high-tech pilot, but governance. True readiness means being able to answer key workplace questions without stitching together manual spreadsheets.

The Payoff: Beyond Efficiency

Ultimately, AI expands the building conversation from simple efficiency to expressive experience. While we have long mastered energy and maintenance runtimes, the future lies in measuring how space supports culture and connection. Treating technological lag as a form of "deferred maintenance" is essential; buildings that fail to adapt will become increasingly out-of-date.

“ There is a technology debt that is the equivalent of your deferred facilities maintenance... your buildings get more and more out of date every day from a technology and user experience perspective.

By creating an attuned environment, real estate professionals can move beyond managing costs to delivering a compelling, evidence-based story of human support. Success lies in using these tools not as a one-time project, but as a continuous framework for making environments that truly feel built for the people inside them.

PLASTARC helps organizations move beyond the IEQ version of smart buildings and coaching organizations along with their HR, RE, IT, and FM counterparts. We make the hard work of people and data integration fulfilling, and sometimes even fun. Our work demonstrates that personalization can improve engagement, performance, and operational predictability. Drop us a line at info@plastarc.com if you are looking to make your environments more attuned, responsive, and worth the trip.