Services/Space Accounting
Every square foot is a financial asset.
Space accounting treats building measurement as a financial discipline. SSI accounts for every square foot with the same rigor your finance team applies to revenue, because in commercial real estate, square footage is revenue.
The Discipline
What is Space Accounting?
Most firms measure buildings. SSI accounts for them. Traditional measurement produces a floor plan and a number. Space accounting produces a financial framework that connects every square foot to your lease revenue.
Peter Stevenson co-authored the BOMA measurement standards the industry relies on. We built space accounting on that foundation, adding 40 years of practice to create a discipline that treats your building's area the way your accountant treats your books: with precision, consistency, and a clear line to the bottom line.
Our clients consistently uncover 6% additional rentable area in Class A properties. Revenue already sitting in your buildings, waiting to be structured and captured.
Measurement vs. space accounting

Process
How it works.
Four stages from strategy to ongoing management. Each builds on the last to create a complete financial picture of your portfolio.
Strategy Consultation
01We learn your portfolio goals, lease structures, and revenue targets before we set foot in a building.
Field Measurement
02Our team measures on-site using laser scanning and BOMA methodology refined over 40 years. Every room and corridor verified.
Financial Structuring
03Measurement data organized into a financial framework: RSF calculations, load factor analysis, and revenue impact modeling.
Ongoing Management
04Your data flows into TruSpace for live portfolio visibility. Numbers stay current and audit-ready through every lease event.
Delivered in TruSpace
Your space accounting, kept live.
Every figure we deliver loads into TruSpace Portfolio Overview, so the opportunity we find stays in front of your team after the engagement ends.
- Total opportunity in square feet, as a rate, and as a dollar value modeled on your assumptions
- Buildings, floors, tenants, and total rentable area in one summary
- Every figure traceable back to a measurement

Deliverables
What you get.
Every engagement produces tangible, structured output you can act on immediately and manage over time.
Building Calculation Analysis Report
Standards-compliant rentable square footage calculations for every floor, independently measured and structured for lease administration.
As-Built Floor Plans
Accurate drawings produced from field measurement. Every wall, column, and demising line confirmed on-site.
Financial Analysis
Revenue impact reports quantifying rentable area opportunity, load factor optimization, and per-floor breakdowns.
TruSpace Integration
All data loaded into TruSpace for interactive floor plans, stacking plans, and real-time portfolio analytics.
BOMA Classification
Each space classified per the standard our founder co-authored. Dominant portion, penetrations, and common areas all accounted for.
Ongoing Occupant Updates
Tenant changes turned around in as little as 30 minutes, so your space accounting stays current through every lease event.
More services
Your buildings hold untapped revenue.
Let's quantify it. Schedule a consultation and we'll show you what space accounting uncovers in your portfolio.
