The 2026 Commercial Real Estate Glossary: Terms, Trends, and Definitions

Measures the profitability of an income-producing property by subtracting operating expenses from total income, excluding debt service and taxes.⁵

NOI = (Gross Rental Income + Other Income) − Operating Expenses

Expresses the relationship between NOI and asset value, serving as a market-based indicator of risk and return.⁵

Cap Rate = NOI ÷ Purchase Price

Measures a property's ability to service its annual debt obligations.⁶

DSCR = NOI ÷ Annual Debt Service

Define the equity buffer in a transaction. Average LTVs have moderated to approximately 60%–65%, reflecting more conservative leverage standards.⁷

Tenants pay base rent plus property taxes. The landlord remains responsible for insurance and common area maintenance (CAM).

Tenants pay base rent plus property taxes and insurance. The landlord typically retains responsibility for common area maintenance and structural repairs.

Tenants pay base rent plus property taxes, insurance, and common area maintenance.

A more tenant-weighted form of NNN in which the tenant assumes all operating, maintenance, and capital expenses, including roof, structure, and major building systems.

Most common in retail. Requires tenants to pay base rent plus a percentage of gross sales above a defined breakpoint, aligning landlord income with tenant performance.

Also known as a Gross Lease. Bundles most operating expenses into a single rental rate. The landlord is responsible for property taxes, insurance, and operating expenses, subject to negotiated escalation provisions.

Splits operating expenses between landlord and tenant. Certain costs, such as utilities, janitorial services, overtime HVAC, or increases in operating expenses above a base year, may be passed through to the tenant.

A tenant's pro rata share of expenses required to operate and maintain shared areas of a property. Typical CAM items include landscaping, parking areas, lighting, security, janitorial services, and common area utilities. Often reconciled annually and may be subject to caps or exclusions.

Recurring costs necessary to operate a property, excluding debt service and capital expenditures. Common categories include property management fees, insurance premiums, repairs and maintenance, and utilities, depending on lease structure.

Define how rent and certain operating expenses increase over the lease term. Common structures include fixed annual increases, CPI-based adjustments, and operating expense pass-throughs. Failure to evaluate escalation provisions accurately can materially impact long-term occupancy costs.

Establishes the benchmark year for operating expenses in Full-Service Gross and Modified Gross leases. Operating expense increases above the Base Year are passed through to the tenant on a pro rata basis. Precise definition of the Base Year is critical, as improperly structured base years can materially increase long-term occupancy costs.

A negotiated period of reduced or waived base rent, typically provided at lease commencement. Commonly used to offset tenant improvement costs, relocation expenses, or delayed occupancy. While abatement does not reduce the stated rental rate, it can materially improve a lease's effective economics.

A landlord-funded build-out contribution, typically expressed on a per-square-foot basis. Enhanced TI packages remain a key incentive in Class A office leasing amid ongoing flight-to-quality trends.

Commercial office assets are typically categorized by quality, location, and amenity profile.

• Class A: Newer or recently renovated buildings in prime locations with top-tier amenities, modern building systems, and institutional ownership
• Class B: Functional, well-located properties with fewer amenities, lower rental rates, and moderate capital investment requirements
• Class C: Older buildings that may require significant capital improvements and are often positioned for value-add or redevelopment strategies
• Coworking and Flexible Office: Shared or private office environments offering short-term commitments, serviced amenities, and operational flexibility
• Executive Suites and Serviced Offices: Fully furnished, turnkey office solutions with bundled services, staffing, and shorter lease terms

Office properties designed for healthcare and outpatient medical users. Typically feature enhanced HVAC systems, specialized plumbing, higher power capacity, and increased parking ratios. Medical office properties often support longer lease terms and exhibit higher tenant retention compared to traditional office assets.

Industrial properties are designed to support manufacturing, storage, distribution, and logistics operations.

• Warehouse and Distribution
• Logistics and Last-Mile Fulfillment
• Manufacturing

Flex properties combine office and light industrial components within a single facility. Commonly used by technology firms, life sciences companies, creative users, and service-oriented industrial businesses requiring adaptable space.

Retail assets are consumer-facing properties designed for the sale of goods and services.

• Strip Centers
• Shopping Centers
• Stand-Alone Retail

Multifamily properties are residential income-producing assets with five or more units.

• Market-Rate Apartments
• Mixed-Use Developments (with a residential multifamily component)

Hospitality and specialty assets include properties with operating businesses tied directly to the real estate.

• Hotels and Resorts
• Extended-Stay and Boutique Hospitality
• Specialty Assets, including self-storage, medical office, and senior housing

Includes environmental assessments, lease audits, zoning verification, and financial review.

Commercial transactions generally operate under caveat emptor, though certain jurisdictions require disclosure of hazardous conditions and latent defects.^{8 9}

Sublease availability increased materially in several high-vacancy office markets during the post-pandemic recovery, becoming a more prominent consideration in lease negotiations and transaction underwriting.

Outlines the primary business terms of a proposed lease or purchase prior to execution of a binding agreement. While generally non-binding, the LOI establishes economic structure and negotiation alignment.

A statement executed by a tenant confirming key lease terms, compliance status, and the absence of undisclosed agreements. Commonly required in property sales and refinancing transactions to validate income streams and lease enforceability. Incomplete or inaccurate estoppels can delay or disrupt closings.