Editorial Policy: Sources, Methodology & Bias Disclosure

A single overlooked clause or miscalculated square footage in a commercial lease can easily cost a startup an extra $10,000 to $50,000 annually. For early-stage companies, that's capital burned, not invested. When you're making critical business decisions, especially those involving significant capital outlays like commercial real estate, the quality of your information isn't just important, it's foundational. This isn't just about avoiding a bad deal, it's about making the best deal for your business's future.

We built this platform because we understand that need for reliable, unbiased data. Here's a look under the hood at the principles guiding every piece of content you find here, designed to ensure you're always working with the best possible intel.

Our Data Backbone: What We Trust

Founders often navigate a sea of information, trying to discern what's credible. When it comes to commercial real estate, the stakes are high. We're meticulous about our data sources because your decisions hinge on their accuracy.

Gold Standard Primary Sources

We prioritize data straight from the source, minimizing interpretation layers. Think of these as the raw, unvarnished facts:

• Government Data Sets: Official numbers are often the most reliable. This includes the Bureau of Labor Statistics (BLS) for employment trends and Consumer Price Index (CPI) data, the Internal Revenue Service (IRS) for lease accounting guidance, and publications from various federal agencies. We also tap into local government data, like the Cook County Assessor, for granular insights. This data is typically audited and publicly available, making it highly transparent.
• Brokerage Market Reports: Major commercial real estate firms invest heavily in market intelligence. We rely on their "Marketbeat" reports and similar publications from industry giants like CBRE, JLL, Cushman & Wakefield, Newmark, Colliers, Avison Young, and Savills. These firms have extensive networks and proprietary data, providing valuable market snapshots.
• Industry Research: Organizations dedicated to commercial real estate research produce high-quality, peer-reviewed studies. Examples include the BOMA Experience Exchange Report, NAIOP, ICSC, the CCIM Institute, and Real Capital Analytics. These bodies often aggregate data from numerous sources, offering comprehensive industry benchmarks.
• Specialized Data Providers: For niche insights, we turn to specific data platforms. This includes the Prologis Industrial Index for warehousing trends, the CommercialEdge National Office Report, the CommercialCafe National Office Report, and Stratafolio's CAM (Common Area Maintenance) analysis. These providers often focus on specific asset classes or operational metrics.
• Closed-Deal Data: When available and properly licensed, transaction data from platforms like CompStak offers invaluable real-world insights into executed leases and sales. This provides a tangible look at market pricing.

What We Steer Clear Of

Just as important as knowing what to trust is knowing what to ignore. We actively filter out sources that don't meet our rigorous standards for objectivity and verification. This helps us avoid noise, bias, and speculative information that could lead you astray.

• Competitor Calculator Sites: Relying on benchmark data from other calculator sites, such as LeaseRef, NationalCalculatorAuthority, or Q4 Real Estate, is a non-starter. Their methodologies might differ, and their data could be outdated or biased. We build our own models from primary data.
• Unverified Social Media or Aggregator Content: The internet is full of opinions and unconfirmed reports. We do not use social media posts, forums, or general news aggregators as primary factual sources. These platforms often lack the necessary verification layers.
• Affiliate-Marketed Product Reviews from Non-Credentialed Sources: If a review's primary purpose is to sell a product, and the reviewer lacks demonstrable expertise, we don't consider it a credible source for market data or insights. We separate marketing from objective information.
• Predictive Forecasts Presented as Fact: While market predictions can be interesting, we never present them as definitive facts. Commercial real estate markets are dynamic, and forecasts are inherently speculative. We focus on current, verifiable data.

Our Citation Playbook

Transparency is key. Every piece of data we present, especially financial figures, must be traceable. We operate like a rigorous academic journal, ensuring you can always follow our data trail.

• Every dollar figure must cite a primary source on first appearance. If we state a cost, a rate, or a total, you'll know exactly where that number came from.
• Every market number must have a lastVerifiedDate. This timestamp is critical. Markets move, and what was true yesterday might not be today. For example, a market rental rate might show lastVerifiedDate: 2024-03-28. This indicates the data's freshness.
• Every cited source must include the date accessed. This complements the lastVerifiedDate by showing when we pulled the information, further enhancing traceability.
• For statistics, the sample size and time window must be specified where available. Context matters. Knowing if a statistic is based on 10 deals or 10,000, and over what period, helps you understand its relevance and statistical significance.

Speaking Your Language, Not Marketing Noise

As founders, you appreciate directness. Our content aims to be clear, practical, and devoid of the jargon and fluff that often plague real estate discussions. We want to empower you, not confuse you.

Our Voice: Clear, Conservative, Confident

We speak with the voice of a fair-broker tenant representative. This means:

• Conservative on what we know, explicit about what we don't. If there's uncertainty, we'll tell you. We won't overstate our knowledge.
• Confident on numbers we've verified, hedging on numbers we haven't. Our confidence level directly correlates with the robustness of our underlying data.
• We aim for clarity, precision, and an actionable perspective, always keeping your interests as a tenant or business owner in mind.

What We Absolutely Won't Publish

To maintain objectivity and focus on actionable data, we have strict prohibitions on certain types of content:

• No invented client stories or anonymized "case studies." We avoid fabricated narratives. Our insights come from aggregated data, not fictional scenarios.
• No predictions of future rent prices or cap rates. These are speculative and can be misleading. Our focus is on current, verifiable market conditions.
• No specific recommendations of brokers, attorneys, or vendors. While we emphasize consulting credentialed professionals, we never endorse specific individuals or firms. Our role is to provide data, not to act as a referral service.
• No legal advice on specific clauses. Commercial leases are complex legal documents. We provide general information, but specific legal interpretations must come from a qualified real estate attorney.
• No marketing speak. You won't find terms like "leverage," "synergy," or "robust" in our editorial content. We prioritize clear, concise language over corporate jargon. We believe in getting straight to the point.
• No em-dashes or en-dashes. We use standard punctuation, commas, periods, semicolons, or the word "and" for clarity and consistency.

AI-Assisted Content Disclosure

We embrace technology where it enhances accuracy and efficiency, but always with human oversight.

• Our AI Negotiation Coach is clearly labeled as AI-assisted. Its output is generated by Gemini 2.5 Flash, operating with a temperature of 0 and a highly constrained system prompt to ensure factual consistency and relevance. All AI-generated content includes a standard disclaimer, making its origin transparent.
• For our editorial pages, including long-form guides, hubs, and market analyses, humans write the final content. AI may assist in drafting, research synthesis, or generating initial outlines, but every word you read has been reviewed, edited, and approved by a human expert. We never publish AI-generated text without thorough human review and verification.

Our Pledge: Constant Verification

Data isn't static, especially in commercial real estate. Our commitment to accuracy extends to continuously checking and updating our information. Think of it like a robust CI/CD pipeline for data.

• Daily: We perform a source-page hash check at 06:00 UTC. This automated process verifies that our underlying data sources haven't changed unexpectedly, catching potential issues early.
• Quarterly: On the 25th of January, April, July, and October, we conduct a full data verification. This involves a comprehensive review of all market data points, with the lastVerifiedDate updated accordingly across the site.
• Annually: Our entire methodology undergoes a review against current industry standards. This ensures our approach remains cutting-edge and aligned with best practices in commercial real estate data analysis.

When Things Go Wrong: Corrections

Despite our rigorous processes, errors can occur. Our commitment is not just to accuracy, but to transparency and rapid correction when issues are identified.

• If you spot a data error, you can flag it via email or our contact form.
• We commit to verifying any reported error within 48 hours.
• Once verified, a correction is published, clearly noting the date of the correction and both the old and new values. Transparency is paramount.

How We Stay Afloat: Transparent Affiliates

Running a platform with high-quality, constantly updated data isn't free. We believe in transparency about our business model.

• We may earn an affiliate commission from clearly disclosed partners. Currently, these include CompStak and Squarefoot for broker matching.
• It's crucial to understand that our affiliate relationships do not influence our editorial coverage. Our research and content recommendations are independent.
• Affiliate links are always visually distinguishable from editorial recommendations, often with a clear disclosure like "Affiliate Link" or a different styling. For example, if a tool costs $70 for a basic plan, and a broker matching service costs $20 for a referral, and a data subscription is $800, your total potential cost could be $70 + $20 + $800 = $890. We clearly delineate where we might earn a commission.
• We do not accept "pay for placement" or sponsored content. Our editorial integrity is non-negotiable. All recommendations reflect our independent research and analysis.

Beyond the Hype: What We Don't Do

Our mission is to provide unbiased information. To achieve that, we draw clear lines:

• We do not recommend specific brokerages by name with affiliate compensation. Any rankings or mentions of firms are based on objective, third-party data, such as Real Capital Analytics 2026 transaction volume data, not on commercial agreements.
• We do not accept product reviews "in exchange for" features or favorable coverage. Our editorial team evaluates tools and services based on merit and relevance to our audience, not on payment.
• We do not operate a brokerage ourselves, nor do we take referral fees directly from tenant representative brokers. Our core business is providing data and insights, not facilitating transactions.

The Human Firewall: Expert Review

Before any content goes live, especially market-sensitive data, it undergoes a stringent review process. This is our final layer of quality assurance.

• A credentialed CCIM-designated reviewer signoff is required. This professional, holding the Certified Commercial Investment Member designation, brings a high level of expertise to the table.
• The reviewer's responsibilities include:
  • Verifying methodology accuracy, ensuring our approach is sound.
  • Verifying source citations, confirming all data points are properly attributed.
  • Verifying market benchmark accuracy, checking that our numbers align with real-world conditions.
• Upon finalization, we will publish the reviewer's name, credential, and the date of their last review. Where applicable, their state license number will also be included, providing full accountability.

Help Us Get It Right

Your input is invaluable in maintaining the highest standards. If you believe something on our site needs an update or correction, please reach out.

Email [e-mail], or use our contact form, and provide:

• The page URL where the information is located.
• The specific data point or claim you're questioning.
• Your proposed correction, ideally with supporting sourcing.
• Your name and, if you wish, your professional credential.

We will respond to all correction requests within 48 hours and, if verified, publish the correction within 7 days.

Important Disclaimer: The information provided here is not financial or legal advice. Estimates are based on publicly available market data and broker reports. Commercial real estate is highly local and deal-specific. Always consult a licensed commercial real estate broker and a real estate attorney before signing any lease or making significant property decisions.

Full data + interactive calculator: commercialleasecost.com