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Medical Office Leasing Glossary

Use the key points below to make the real-estate decision easier to evaluate, then turn the requirement into a live search.

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Reviewed: August 14, 2026South Florida medical/dental tenant-representation relevanceJoseph M. Lacy, CSE, CLA · Realty 100 LLC

Plain-English definitions for the commercial real estate terms healthcare practices encounter while evaluating space and leases.

Reviewed 2026-08-13 • ClinicaMOB editorial standard: distinguish published information, informed analysis and property-specific facts requiring verification.

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Medical Office Leasing Terms — Plain-English Definitions

Base Rent

The rent charged for the premises before additional operating expenses or other charges.

CAM / Operating Expenses

Additional building or property expenses passed through to tenants under the lease structure. The exact components vary by property and lease.

Full-Service / Gross Rent

A rent structure in which some or many operating expenses are included in the quoted rent, subject to the lease terms and possible expense stops or increases.

NNN / Triple Net

A structure in which the tenant typically pays base rent plus allocated taxes, insurance and common-area/operating expenses, as defined by the lease.

Tenant Improvements (TI)

Work performed to adapt a suite for the tenant. The lease may provide a landlord contribution, turnkey work, reimbursement or no allowance.

Second-Generation Medical Space

A suite previously built for healthcare use where some existing improvements may be reusable.

Second-Generation Dental Space

A former dental suite where plumbing, operatory layout, electrical, imaging or other dental infrastructure may reduce conversion work if it fits the new practice.

Usable vs. Rentable Square Feet

Usable area is the space physically occupied by the tenant; rentable area may include an allocation of common areas depending on the measurement method and building.

Letter of Intent (LOI)

A generally non-final business-term summary used to frame lease negotiations before definitive lease documents.

Exclusive Use

A lease provision that may limit specified competing uses at a property. Availability and scope depend on the landlord and existing agreements.

Permitted Use

The lease language defining what the tenant may legally operate in the premises. Medical and dental practices should make sure it is broad enough for planned services.

Assignment / Subletting

Lease provisions governing whether and how the tenant may transfer occupancy or lease rights to another party.

Renewal Option

A contractual right, if properly exercised, to extend the lease under specified terms or a stated method for determining terms.

Buildout Period

The period used for design, approvals, permitting, construction, inspections, equipment installation and readiness for occupancy.

Occupancy Cost

The broader economic burden of the space — potentially including rent, operating expenses, parking, utilities, improvement costs, financing, relocation and downtime.

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Editorial standard. Guidance is written for medical/dental real-estate decisions in Southeast Florida. Property-specific facts, economics, availability and regulatory matters must be verified for the actual transaction; unsupported market claims are not published as fact.
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