Talk is Cheap.
Measuring 12,500 + buildings across the globe
Being the longest tenured co-author of BOMA & IPMS
Recovering over $1.56 billion in client asset value
For over four decades.
That isn't talk.
Those are results.
A premier residential experience awaits you
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Building Measurement shouldn’t cost you money.
It should generate it.
For over 40 years, Stevenson Systems has turned measurement accuracy into actionable revenue—uncovering 6–10% rentable square footage that that defines the asset’s true revenue capacity.
12,500+
Buildings measured across global portfolios
+27%
Increased vertified, rentable square footage recovered
$15 Billion
Verified value made actionable across portfolios
Verified, defensible building measurement that consistently surfaces overlooked RSF and protects NOI—portfolio-wide.
Start with your building details,
Trusted by Industry Leaders
In our building measurement process, we have 3 clear priorities.
01
Capturing all rentable square footage.
Advanced laser scans establish geometry; deeper verification captures what affects revenue.
Our proprietary review of HVAC, MEP, voids, and behind-wall structure consistently uncovers 6–10% of existing rentable square footage returned back into revenue calculations.
02
Square footage is only attributable when it meets stakeholder standards.
As co-authors and contributors to BOMA, IPMS, and market-specific standards, we create a spatial record that is more than accurate — it’s built to be referenced, relied on, and put to work across your entire portfolio.
03
Turning captured square footage
into leased space.
We work alongside your team to keep verified measurement as an always-current source of truth—supporting tenant changes, planning, and performance visibility over time.
The Art and Science of Measured Space
Behind every successful portfolio is more than data — it’s the discipline of precision. Stevenson brings together decades of expertise, unrivaled accuracy, and next-generation portfolio-wide analytics to reveal opportunity where others only see floor plans.
This is how space becomes strategy.
Precision That Defines an Industry
Four decades of rewriting how the world measures, values, and manages real estate.
Stevenson Systems has been a co-author of all the Building Owners and Managers Association (BOMA) measurement standards over the past 30 years. Our rigorous approach is further reflected in our strategic application of these measurement standards. And as the industry grows internationally, Stevenson Systems continues to lead the way, playing a pivotal role in the creation of the International Property Measurement Standards (IPMS). After thirty years of creating, interpreting, and applying the standards, we certainly know how to make them work for you.
For 40+ years we've been the gold standard in building measurement.
12,500+
Buildings Measured Globally
Consistent, BOMA/REBNY-aligned deliverables across markets - executive-ready and audit-proof.
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Strategic Services
As-Built Floor Plans
We capture what exists with precision and reconcile it to the record—so every design, bid, and decision starts from truth.
Multi-pass laser capture + photographic notes
Reconciled to original CDs/addenda and prior as-builts
Modeled to CAD/BIM/REVIT with disciplined layers
Versioned updates with narrative change logs
Strategic Services
Measurement Reports
We pair targeted field verification with the historical record to resolve what a scan can’t—legacy lease lines, intent, and standards.
Evidence review: CDs, prior reports, leases, permits
On-site checks at lines that move the math
BOMA/IPMS/REBNY applied to the intended use
Traced USF/RSF/IPMS, Load Factors, Cleanable Area
Strategic Services
Space Accounting
We turn measurements into a governed system so square footage stays accurate as buildings change.
Effective dating, suite lineage, exception handling
Allocator logic for clean chargebacks/recoveries
Approvals and roles; every change leaves a trace
Integrations/exports for leasing, finance, BI
Strategic Services
Square Footage Optimization
We set usage next to allocation and surface specific, trackable opportunities—not generalities.
Map real use vs. assigned areas at suite level
Before/after exhibits tied to drawings/standards
Operational steps for lease/billing/reporting
Monitored through change; documented gains (2–4% RSF where misalignments existed)
Strategic Services
Orders & Occupant Services
Tenant and suite changes are governed as they happen—no more waiting on stale PDFs.
Orders submitted in-platform (from the drawing when needed)
Approvals, timestamps, effective dates captured
Real-time state for leasing/finance/FM reports
Less email churn; faster, cleaner period-end
Strategic Services
Data Centralization
TruSpace™ centralizes drawings, stacking plans, tenant orders, and analytics—so everyone sees the same, current truth.
Drawing Vault™: ingestion, indexing, permissions, versioning
StackTower™: dynamic stacking from verified data with lineage
Orders: request→review→approve workflows + audit trail
Smart Data: verified KPIs with click-through to the plan
Strategic Services
Smart Data
Smart Data replaces estimates with verified metrics—one dashboard that rolls up the portfolio and drills to suites.
KPIs anchored to verified RSF/USF and standards
Apples-to-apples side-by-sides across assets
Drill-through: portfolio → building → floor → suite
Forecasts with provenance and visible variance
Strategic Services
Certification & Standards Application
We validate areas and make standards choices explicit, producing a package built for lenders, buyers, tenants, and counsel.
Independent review + targeted re-measurement
Written rationale for standard selection/edge cases
Certification letter, variance schedule, exhibits
Clear ties back to drawings and calculations
Skyscrapers
"A machine that makes the land pay."
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At Stevenson Systems, building measurement isn’t a drawing exercise; it’s a revenue function. We deliver standards-aligned as-builts and deep Space Accounting that stand up to audit and negotiation—so every inch is billed correctly and every lease model is clean. Across 12,500+ buildings, our single methodology uncovers additional RSF, reduces disputes, and strengthens valuations. If precision is the goal, defensibility is the outcome—and revenue follows.
The Stevenson Systems Lifecycle
We capture every square foot that exists,
govern what changes & document what matters—
so value is protected long after the measurement.
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New Development
During the critical conceptual and detailed design phases, Stevenson Systems develops strategies that improve load and loss factor efficiency, usable-to-rentable ratios, and floor plate efficiencies based on the multiple measurement standards required for leasing, FAR, tax and meeting municipal requirements. Using our proprietary information, studies are carried out on comparable properties and market competitiveness.
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Redevelopment & Reposition
Whether you’re on the purchase or sale side of an acquisition, accurate building measurements and current lease data are essential for establishing rentable benchmarks, and maximizing dollar-yield. Stevenson Systems works with your timeframe.
Acquisition
For existing structures, Stevenson Systems begins by developing a unique strategy based on the availability of architectural drawings, and/or CAD files. Field verified as-built floor plans are created by our expert team using advanced laser technology. The appropriate measurement standard is then applied to calculate the building’s square footage, and a Space Analysis™ study is provided, outlining our findings and offering guidance on how to maximize your profitability.
Asset Management
We work with building owners, managers, and leasing representatives to accurately capture all suite and respective occupant leasing information. Detailed drawings are provided with individual suite calculations based on improvements, which include their respective square footages. This information is maintained by our TruSpace™ Orders group, which prevents square footage loss as occupancy and spaces change.
Operations & Maintenance
Stevenson Systems’ Occupant Services improve your leasing team’s capabilities by providing preliminary suite calculations, based upon the proposed new suite demising walls, within one business day. Occupant improvements and close-out CAD files are stored in our Drawing Vault, with instant access to your drawings and CAD files wherever you are.
Disposition
Stevenson Systems provides expertise in assessing and evaluating your asset(s) square footage during all stages of the lifecycle. During the disposition process, we work with clients to maximize the value of your asset with accurate and defendable square footage before you sell.