Real estate decisions used to be straightforward: lease space, fill it with desks, and assume your cost per employee was whatever you paid divided by headcount. Hybrid work broke that model.
When employees are in the office two or three days a week, paying for a full complement of assigned desks at premium square footage rates is a difficult line item to justify. But the alternative—moving to flexible or on-demand workspace—comes with its own math problem: how do you compare a traditional lease against a usage-based model when the cost structures are fundamentally different? This guide walks through a practical framework for doing exactly that.
Part 1: Define the Two Models You’re Comparing
Before you can calculate ROI, you need apples-to-apples definitions. Traditional leases and flexible workspace programs have different cost structures (fixed vs. variable) and modeling them fairly means capturing the full input set for each.
The traditional office lease
A traditional lease is a fixed-cost model. You’re paying for space regardless of how many people show up on a given day. The inputs you need to model it accurately:
Annual rent (gross) and lease term
Operating expenses: utilities, facilities, maintenance, security
IT and AV infrastructure
Furniture depreciation and capital expenditures
Facilities administration and support staff overhead
The result is a cost structure that doesn’t flex with your workforce. When attendance drops—on Mondays, Fridays, or whenever your team chooses to work from home—the cost stays flat.
The flexible or hybrid workspace model
A flexible model shifts costs from fixed overhead to variable, utilization-driven spend. The inputs look different:
Per-employee membership or access fees (monthly or annual)
Platform and admin costs: booking system, analytics, IT integration, support
Network access fees and onboarding costs
Expected reduction in leased square footage—the primary ROI lever
Adoption rate: the percentage of eligible employees who will actively use the network
The cost structure shift is the point. Instead of paying for 100 desks whether they’re occupied or not, you’re paying for access proportional to actual use. Deskpass Teams operationalizes this with utilization-based pricing—organizations pay for the space employees book and use, not a fixed inventory of seats.
Part 2: Establish Your Metrics and Calculation Methods
Once you’ve defined both models, you need a consistent unit of comparison and a clear ROI formula. Here are the four metrics that drive hybrid workspace economics.
Per-employee cost (CPE): the primary unit of comparison
CPE is calculated by dividing total annual workspace program cost by the number of employees served: CPE = Total Annual Cost ÷ Headcount
For a traditional lease, this is straightforward: add up rent, opex, and overhead, then divide by headcount. For a flexible model, include membership fees per user and admin costs, then subtract net space savings from any corporate lease reduction. This produces a directly comparable number across both models and a clear baseline for evaluating whether a transition to flexible workspace improves or worsens your per-employee economics.
ROI formula
ROI is calculated as: ROI = (Annual Benefits − Annual Costs) ÷ Annual Costs
Benefits include hard savings (lower rent and opex from downsizing, reduced capex) and softer gains (productivity improvements, retention). The hard savings are straightforward to quantify. For the softer benefits, use credible external research as a basis or flag them as qualitative inputs if you can’t monetize them directly.
The four supporting metrics
Metric | What It Measures | Industry Benchmark |
Seat-sharing ratio | People per physical seat. Higher ratios allow more space reduction without degrading the employee experience. | 1.01–1.49 people per seat in mature hybrid programs (CBRE 2026 benchmarks). Targeting 1.2–1.3 can reduce footprint by 15–25%. |
Space utilization rate | The percentage of available space that’s actually occupied across a given period. | Global average is 53% as of 2026—its highest since before 2020 (CBRE 2026 Global Workplace & Occupancy Insights). Target for hybrid programs: >65%. |
Adoption rate | The percentage of eligible employees who actively use the flexible network. Normalizes per-employee cost calculations. | Early programs typically see 60–70% adoption, scaling to 80%+ as employees become familiar with the platform. |
Employee outcomes | Productivity, retention, and engagement. Hybrid and flexible approaches can sustain or improve these when implemented with clear policies and strong tooling. | Translating a 5–10% improvement in retention into dollars (typically 50–200% of annual salary per departure avoided) often produces the largest ROI line item. |
Part 3: Build and Benchmark the Model
With both cost models defined and your metrics established, you can run a two-scenario comparison. Here’s how to structure it.
Step 1: Model the traditional lease baseline
Pull the following from finance and real estate:
Total annual lease cost (rent + opex + overhead)
Current headcount and in-office utilization rate
Current square footage and cost per square foot
Calculate: CPE = Total Annual Cost ÷ Headcount. This is your baseline.
Step 2: Model the flexible workspace alternative
Estimate the following:
Per-employee access or membership cost × expected headcount in program
Platform and admin costs
Space reduction savings: (SF reduction) × ($/SF/year)—this is the critical line item
Net flexible program cost = access costs + admin costs − space reduction savings
Calculate: CPE = Net Flexible Program Cost ÷ Headcount.
Step 3: Run sensitivity analysis
Your model should test at least three scenarios:
Variable | Conservative | Base Case | Optimistic |
Adoption rate | 60% | 70% | 85% |
Space reduction | 10% | 20% | 30% |
Utilization rate (post-transition) | 55% | 65% | 75% |
Sensitivity analysis matters because the ROI of a flexible workspace program is highly dependent on how much space you exit and how many employees actively use the network. A 10% swing in adoption rate or a failure to sublease unused space can meaningfully change the outcome.
Why Midweek Attendance Patterns Matter for Your Model
CBRE’s 2026 Global Workplace & Occupancy Insights show that 96% of organizations now target three or more in-office days as their workplace standard, with Tuesday registering the highest attendance at 73% of organizations. This “Tuesday effect” has real implications for workspace modeling.
If your team is concentrated in the office Tuesday through Thursday, your space needs on peak days look very different from your needs on Mondays and Fridays. A well-calibrated model designs for 75% capacity on peak days and 40% on lighter days—not 100% coverage across the week. Flexible workspace adoption follows the same pattern: employees are more likely to book spaces on anchor days, so your membership costs should reflect that concentration rather than assuming uniform daily usage.
Two Misconceptions That Distort the Math
Misconception 1: Space savings = cost savings
Reducing square footage only delivers ROI if that reduction translates into lower lease costs. Shrinking your footprint from 30,000 SF to 25,000 SF saves money only if you exit the lease, sublease the space, or avoid a planned expansion. If the lease stays in place and desks sit empty, there is no financial benefit—just wasted space.
Every model should include an explicit line: Space Reduction Savings = (SF Reduction) × ($/SF/year). And every space reduction should be tied to a concrete lease action: exit, sublease, or avoid expansion.
Misconception 2: Cost avoidance and cost reduction are the same thing
They’re not. Avoiding a planned office expansion is a real financial benefit, but it shows up differently than actively reducing an existing lease. Your model should distinguish between the two. If your ROI case depends on avoided costs, be explicit about what you were planning to spend and why the flexible model removes that need. Finance teams will scrutinize this line—and they should.
How Deskpass Teams Fits Into the Model
The flexible workspace side of your cost model needs a platform that makes the numbers work—not just in theory but in practice. Deskpass Teams is built on a utilization-based pricing model: organizations pay for actual usage across more than 10,000 desks, conference rooms, and private offices in over 290 cities. There are no monthly minimums and no long-term commitments.
For the model specifically, Deskpass Teams provides:
Consolidated billing: All workspace spend rolls up into a single invoice, making it straightforward to track actual costs against your model assumptions
Live reporting: Admins see per-employee spend, utilization rates, and space performance by city—the exact data points your model needs to remain accurate over time
Budget controls: Spending caps prevent the flexible model from exceeding its planned cost, which is the most common failure mode when usage-based programs run without guardrails
The result is a flexible workspace program where the financial model is self-correcting: if adoption or utilization changes, the spend changes with it—and you have the data to see it in real time.
Frequently Asked Questions
What is per-employee cost (CPE) and why is it the right unit of comparison?
CPE divides total annual workspace program cost by the number of employees served. It’s the right unit because it normalizes for team size and allows direct comparison between a traditional lease (fixed cost) and a flexible model (variable cost). Industry benchmarks for CPE run from $3,000 to $12,000 per employee annually depending on market and space allocation.
What counts as a “benefit” in the ROI formula?
Hard benefits include lower rent and opex from space reduction, reduced capital expenditures, and eliminated facilities overhead. Soft benefits include productivity improvements and retention gains. Quantify hard benefits first; use external research to estimate soft benefits conservatively, or include them as qualitative factors in your ROI narrative.
How do I account for adoption rate in the model?
Adoption rate is the percentage of eligible employees who will actively use the flexible network. It directly affects per-employee cost—lower adoption means higher CPE because fixed platform and admin costs are spread across fewer users. Model a conservative base case at 70% and test sensitivity down to 60% and up to 85%.
What seat-sharing ratio should I target?
CBRE benchmarks show seat-sharing ratios of 1.01–1.49 people per seat in mature hybrid programs. If your traditional lease assumes one desk per employee (1.0 ratio), targeting 1.2–1.3 in a flexible model can reduce your footprint by 15–25% and materially lower per-employee cost.
How do I handle the ROI of productivity and retention improvements?
Use conservative estimates grounded in external research. A 5% reduction in turnover across a 500-person organization, at a replacement cost of 100% of annual salary, produces a substantial dollar figure that strengthens the business case. If you can’t tie a number to it confidently, include it as a qualitative benefit rather than risk overstating the model.
What’s the difference between hybrid workspace models?
Shared coworking access suits distributed teams and project-based work with variable costs and low commitment. Private offices or smart suites work for client-facing teams that need predictability and branded environments. Hub-and-spoke combines a flagship HQ with regional coworking nodes—balancing fixed and variable costs across geographies. Each has a different CPE profile; your model should reflect which one you’re building.
Start With the Numbers You Have
The most useful ROI model isn’t a perfect one; it’s one built from your actual lease costs, your real headcount, and conservative assumptions about adoption and space reduction. From there, the comparison usually speaks for itself.
Deskpass Teams gives you the utilization data and consolidated billing to keep the model honest as your program matures. Book a demo to see how it works in practice.
