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Commercial Real Estate Disclaimer (Educational Use Only)

Not financial or legal advice. Estimates based on publicly available market data and broker reports. Commercial real-estate is highly local and deal-specific. Consult a licensed commercial real-estate broker and a real-estate attorney before signing any lease.

What this means

Every page on commercialleasecost.com, every output from the pillar TCO calculator, and every response from the AI Negotiation Coach is general information for educational purposes only. It is not:

What you should do for your specific deal

For any commercial real-estate decision worth pursuing on this site:

  1. Engage a licensed tenant rep broker. Free to you in standard markets (paid by landlord). The broker has market data, landlord access, and deal-economics expertise the site can’t substitute for.

  2. Hire a real-estate attorney. Commercial leases are complex contracts. Specific clause interpretation, redline negotiation, and lease execution require attorney review. Cost typically $1,500 to $15,000 for a single lease.

  3. Consult your CPA. Lease accounting under ASC 842 affects financial statements and tax position. Material to your business; consult a CPA.

  4. Verify our data against primary sources. Every market number cites a primary brokerage report or government dataset. Click the citation to verify.

Why we publish despite these limitations

Tenants need a starting point. The current SERP for commercial lease calculators offers shallow tools that miss NNN/CAM, escalation, TI, and free rent. The current editorial content on lease structure and negotiation is thin.

We provide better-than-average research and tools to inform tenant decisions. The professionals you hire (broker, attorney, CPA) take it from there.

Our limitations

Specific market data limitations

AI Coach limitations

Real estate is local and deal-specific

The same lease structure produces different economics in San Francisco vs Detroit, in Class A trophy vs Class B suburban, for a tech startup vs a fast casual restaurant. Always work with local market professionals who know your specific submarket and use case.

Liability

To the maximum extent permitted by law, we are not liable for decisions made based on site content. See our terms of service for full liability limitation.

Final word

Use this site as one input among many. Your business deserves more than a free calculator’s output. Engage the professionals.

Not financial or legal advice. Commercial real-estate is highly local and deal-specific. Consult a licensed commercial real-estate broker and a real-estate attorney before signing any lease.

Limitations of the calculator output

The calculator is calibrated against published Q1 2026 brokerage market data (CBRE Marketview, JLL Office Insight, Cushman & Wakefield Marketbeat, Newmark Market Reports, Avison Young Insight, Colliers National Snapshot). Brokerage market data lags actual deal flow by 60-120 days because closed-deal data is reported on a calendar quarter basis. Effective rent in any specific submarket can move 5-15% within a quarter as concession depth shifts. Listing rents (CoStar, LoopNet) and effective rents (CompStak) diverge 10-25% in soft markets. Always verify a market number against a recent comparable transaction before signing.

The metro market data covers 25 top US metros and excludes secondary and tertiary markets. If you are evaluating a lease in a market not covered by our dataset, the metro-specific defaults will not apply; use the manual override fields to enter your own base rent, NNN, and CAM numbers from local brokerage research.

The output of the calculator is a point estimate. It does not include factoring of inflation, lease-end restoration costs, signage rights, parking ratios, after-hours HVAC charges, freight elevator allocations, building hours of operation restrictions, or sublease/assignment limitations. These items often appear in the final lease and can swing total cost of occupancy by 5-15% over the term.

Comparison page methodology

The compare engine uses a fixed 2,500 SF / 5-year lease assumption to enable apples-to-apples comparison across 100+ metro pairs. This assumption favors mid-sized tenants. For deals materially larger or smaller, the relative ranking of markets does not change but the absolute TCO numbers shift. Use the calculator above each comparison page to model your specific RSF, term, and structure.

We link to brokerage research reports, government data sources, and industry-trade publications. All outbound links carry rel attributes including nofollow, noopener, and noreferrer plus target=“_blank”. We do not accept paid placements, sponsored content, or affiliate revenue from any vendor referenced in our editorial guides. Tenant-rep brokers are recommended categorically (because the landlord pays their fee) but no specific broker is endorsed.

Update cadence

Per-metro market data is reviewed quarterly against the most recent brokerage report cycle (CBRE, JLL, Cushman, Newmark all publish on calendar quarters). Significant shifts trigger an update; minor drift is reflected in the next quarterly cycle. The Last Verified date on each page reflects the most recent quarterly review.

What this site is not

This site is not a substitute for a licensed commercial real-estate attorney for lease drafting, contract review, or dispute resolution; for a licensed CCIM-credentialed tenant-rep broker for transaction negotiation; for a licensed CPA for ASC 842 lease accounting and tax-deductibility analysis; or for a licensed insurance broker for tenant insurance coverage assessment. We are an educational tool for tenants who want to understand the cost mechanics of a commercial lease before they engage these professionals.

Liability waiver

We disclaim all liability for any business decision made on the basis of calculator output, market data, or editorial content on this site. Use of the site implies acceptance of the terms and conditions linked in the footer. We make no representations or warranties about the accuracy, completeness, or timeliness of any data published on this site. Markets move; brokerage reports lag; individual lease terms vary. Always validate calculator output against a current quotation from a tenant-rep broker before making any commercial decision based on the numbers shown here.

Use of cookies and analytics

This site uses Google Analytics 4 to measure aggregated traffic patterns and Cloudflare Web Analytics for privacy-respecting visitor counts. We do not use third-party advertising cookies that personally identify visitors. AdSense, when active, may set its own cookies for ad personalization; you can opt out via the AdSense settings link in our privacy policy.

Contact for corrections

If you spot a calculator math error, an outdated market rate, or a methodology issue, please contact us via the corrections page. Verified corrections are typically reflected in the next quarterly update cycle. Errata are documented on the corrections page with the original error, the corrected number, and the date of correction.