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
Measure What Matters.
Monetize Every Inch.
Verified, defensible building measurement that consistently surfaces overlooked RSF and protects NOI—portfolio-wide.
One building is all it takes to reveal unrealized square footage, uncover hidden revenue potential, and set a new standard of performance for your portfolio.
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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.
+27%
Additional RSF Validated
New, billable square footage identified and added to rent rolls—portfolio-wide.
$15 Billion
Verified Value Realized
Value captured through standards-aligned area corrections and clean, defensible documentation.
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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 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.
Building Measurement vs. Space Accounting
Space Accounting transforms raw square footage into actionable portfolio intelligence.
Indispensable insight into your real estate assets.
Your company has acquired thousands of square feet of Class A office space and potential occupants are lining up. Or perhaps you’re assessing an acquisition opportunity—a high rise apartment building or premium retail park. Whatever your real estate investment, you’ll wonder, “How can I be sure if I’m getting the most out of every square foot?”
As-builts are vital, and there are many ways of obtaining them, from architects (who look at the data from a design perspective) to specialist as-built providers (who supply measurements and plans). Typical building measurement companies will deliver other services you might require: precise measurements, reliable documentation, and advice on applying measurement standards. But building measurement is not enough. It takes a Space Accountant to unlock the value hidden in your assets.
Stevenson Systems provides the fundamental services, executed to the most exacting standards, but that is just the beginning of maximizing the value of your assets. Beyond building measurement, Stevenson Systems delivers a customized strategy to maximize the value of an asset and mitigate risk. Stevenson Systems continually unlocks and protects value in your assets through dynamic access to building and occupant related data throughout a property’s lifecycle. Space Accounting Image Stevenson Systems’ services have become indispensable for hundreds of commercial real estate professionals.
The added benefits of Stevenson Systems:
01
Measurement Reports
Stevenson Systems’ expertise in strategically writing, interpreting, and applying standards enables us to achieve the best financial result for the intended use of your asset.
02
Certifying Building Measurements
Stevenson Systems thoroughly reviews existing measurements, validating accuracy, and uncovering discrepancies which often unlock hidden value.
03
Occupant Services
Because change is inevitable, we provide continuous data updates and reconciliation throughout the lifecycle of your asset.
04
Analytics
We discover hidden value in places others haven’t thought to look.
Our as-built and occupant drawings are created from advanced laser field measurements of existing buildings and occupant suites. These are carried out to the highest standards of architectural integrity, serving as the foundation for many of our products and services. Stevenson Systems utilizes:
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Advanced computerized technology (CAD, BIM, REVIT, etc.)
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Advanced laser collecting data technology while referencing the original construction documents to generate its as-built drawings. These as-built drawings are vital as they are the trustworthy record from which future changes and additions are derived.
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The highest security receptacle for all up to date as-builts drawings with all current and latest changes making us the as-built experts.
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Advanced efficiency in executing as contractors, architects, management and engineering will have full access to information and drawings that contain all the changes to the as-built drawings.
The lifecycle is our focus.
WE CAPTURE WHAT EXISTS, GOVERN WHAT CHANGES, AND DOCUMENT WHAT MATTERS—SO VALUE IS PROTECTED LONG AFTER THE FIRST MEASUREMENT.
Asset Lifecycle
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.
Asset Lifecycle
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.
Asset Lifecycle
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 Lifecycle
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.
Asset Lifecycle
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.
Asset Lifecycle
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.