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Recovery of past CAM overcharges depends on your specific lease terms, including any audit rights deadlines or ‘binding and conclusive’ provisions, and on applicable state law.

State statute of limitations periods apply to written contracts and range from 3 to 10 years. Your actual lookback window may be shorter based on your lease.

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  1. Home
  2. /Glossary
  3. /Common Area Lighting

Common Area Lighting

Last updated: April 2026

The cost of electricity, bulb replacements, and fixture maintenance for lighting in shared building spaces such as lobbies, hallways, stairwells, parking areas, and exterior walkways. This is one of the most common line items on a CAM reconciliation statement.

Technical Definition

Common area lighting encompasses all costs associated with illuminating non-tenant-exclusive spaces: electricity consumption, lamp and LED replacement, ballast repairs, fixture cleaning, photocell and timer maintenance, and emergency lighting battery testing. The expense is allocated to tenants via their pro-rata share of total CAM costs. Lease language should specify whether parking lot and exterior lighting is included or carved out.

How This Gets Abused

A landlord replaced all common area fluorescent fixtures with LED panels at a total cost of $165,000 and passed the full amount through as a single-year operating expense. LED upgrades are capital improvements with a useful life of 10+ years and should have been amortized, not expensed in full.

Tenant Protection Tip

Check whether large lighting expenses on your reconciliation are maintenance costs or capital upgrades. Fixture replacements and lighting retrofits should be amortized over their useful life, not charged as a single-year expense. Flag any single-year spike in lighting costs.

Related Terms

Common Area UtilitiesCapital ExpenditureAmortizationOperating Expenses
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Related Resources

Detection RuleUtility Overcharge DetectionToolFree CAM Scan

Related Guides

CAM ReconciliationGuide
Medical Office Building CAM: What Counts as 'Common Area' in a MOB?
CAM AuditsGuide
CAM Audit Guide: Catch Overcharges Before Your Dispute Window Closes [2026]
CAM OverchargesGuide
Common Area Misclassification in CAM Statements [Guide]
CAM ReconciliationGuide
CAM Reconciliation for Tenants: 40% Have Billing Errors

Need to extract lease terms before your audit?

A CAM audit is only as accurate as your lease data. lextract.io extracts 126 structured fields from any commercial lease PDF: CAM definitions, pro-rata share, caps, base year, and audit rights. So you have the exact terms your landlord is supposed to follow.

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This page provides general educational information. It is not legal advice and may not reflect the most current law in your state. Consult a licensed attorney for advice specific to your situation.

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