Commercial Lease Inspection Checklist

Signing a commercial lease can create long-term financial and operational obligations. A space may look clean, functional, and ready for business during a walkthrough, but visible property conditions can still affect future repair costs, tenant improvements, opening timelines, maintenance responsibilities, and business operations.

This is especially important for tenants signing a triple net lease, often called an NNN lease, where the tenant may be responsible for certain property-related expenses in addition to base rent.

A commercial lease inspection checklist helps tenants, business owners, franchise owners, brokers, and property managers review important visible conditions before signing, renewing, expanding, or negotiating a lease.

Northline does not provide legal advice or lease interpretation. Lease terms should be reviewed with a qualified commercial real estate attorney or appropriate advisor. This checklist focuses on visible property condition items that may be useful to review before committing to a commercial space.

Why Inspect Before Signing a Commercial Lease?

Commercial leases can shift significant responsibilities to the tenant. Depending on the lease language, a tenant may be responsible for maintenance, repairs, utilities, common areas, HVAC service, plumbing, electrical components, insurance, taxes, or other building-related costs.

A lease inspection can help identify visible conditions that may affect:

• Repair negotiations

• Tenant improvement planning

• Opening timeline

• Maintenance responsibilities

• HVAC or roof concerns

• Plumbing or electrical issues

• Water intrusion

• Exterior safety concerns

• Fire door or life safety observations

• Business operations after move-in

The goal is not to slow down the lease. The goal is to help the tenant better understand visible property conditions before committing to the space.

For a deeper explanation, review Northline’s guide: What Is a Triple Net Lease Inspection?

Who Should Use This Checklist?

This commercial lease inspection checklist may be useful for:

• Business owners leasing commercial space

• Franchise owners

• Retail tenants

• Restaurant tenants

• Office tenants

• Medical or dental office tenants

• Industrial tenants

• Warehouse tenants

• Fitness or salon operators

• Commercial brokers supporting tenant clients

• Out-of-state companies entering the Idaho market

• Property managers preparing a space for lease

• Landlords documenting condition before occupancy

The checklist should be adjusted based on the property type, lease terms, intended use, and business needs.

1. Basic Property and Lease Information

Before reviewing the physical condition of the space, gather basic property and transaction information.

Checklist:

• Property address

• Suite or unit number

• Property type

• Approximate square footage

• Current use

• Intended business use

• Lease type

• Lease start date

• Target opening date

• Tenant improvement timeline

• Broker contact

• Landlord or property manager contact

• Site access instructions

• Known concerns already disclosed

• Areas included in the lease

• Shared areas or common areas

• Parking rights or limitations

• Exterior maintenance responsibilities

• HVAC maintenance responsibilities

• Roof maintenance responsibilities

• Utility responsibilities

This information helps define what should be reviewed and what questions should be directed to the broker, landlord, attorney, or appropriate advisor.

2. Exterior and Site Conditions

The exterior of the property can affect customers, employees, deliveries, accessibility, safety, and maintenance obligations.

Review visible conditions such as:

• Parking lot condition

• Potholes or damaged pavement

• Walkway condition

• Trip hazards

• Curb damage

• Exterior stairs

• Railings and guards

• Loading areas

• Exterior lighting

• Drainage near the building

• Ponding water

• Downspout discharge locations

• Exterior doors

• Storefront systems

• Windows

• Signage areas

• Trash enclosure condition

• Delivery access

• Exterior storage areas

• Common area maintenance concerns

Questions to ask:

• Who maintains the parking lot?

• Who repairs damaged walkways or exterior stairs?

• Who is responsible for snow removal or exterior maintenance, if applicable?

• Are common area maintenance costs passed through to tenants?

• Are exterior repairs planned before move-in?

Site conditions may appear minor during a showing but can affect customer experience, safety, and long-term maintenance costs.

3. Roof and Water Intrusion Concerns

Roof and water intrusion concerns are especially important because leaks can affect inventory, equipment, finishes, employees, customers, and business continuity.

Review visible conditions such as:

• Stained ceiling tiles

• Water stains on walls

• Moisture staining near windows or doors

• Active leaks

• Musty odors

• Damaged ceiling materials

• Signs of past roof repairs

• Ponding water where visible

• Damaged roof drains or gutters where visible

• Downspouts discharging near entrances or walkways

• Poor exterior drainage

• Damaged sealants around exterior openings

Questions to ask:

• Has the roof leaked before?

• Who is responsible for roof repairs?

• Is there a roof warranty?

• Are roof maintenance records available?

• Are there open roof repair proposals?

• Has the landlord agreed to repair any roof concerns before move-in?

• Are ceiling stains from prior leaks or active leaks?

A lease inspection may document visible roof-related concerns, but roof defects or active leaks may require evaluation by a qualified roofing contractor.

4. HVAC Equipment

HVAC equipment is one of the most important systems to review before signing a commercial lease. Heating and cooling issues can affect comfort, customer experience, employee productivity, equipment, operating costs, and repair exposure.

Review visible conditions such as:

• Age of HVAC equipment, if available

• General condition of indoor units

• General condition of rooftop or exterior units where visible and accessible

• Thermostat operation

• Airflow concerns

• Dirty filters

• Damaged ductwork where visible

• Condensate drainage concerns

• Rust or corrosion

• Unusual noise or vibration

• Inadequate heating or cooling during inspection

• Missing or limited service records

• Evidence of deferred maintenance

Questions to ask:

• Who is responsible for HVAC maintenance?

• Who is responsible for HVAC replacement?

• Are service records available?

• Is there a current maintenance contract?

• How old is the equipment?

• Has the system been evaluated recently?

• Are repairs needed before occupancy?

• Is the HVAC system adequate for the intended business use?

If HVAC condition is important to the lease decision, further evaluation by a qualified HVAC contractor may be recommended.

5. Electrical System and Business Use

The electrical system should support the intended business use. A retail shop, restaurant, salon, medical office, fitness studio, warehouse, and light industrial tenant may all have different electrical needs.

Review visible conditions such as:

• Electrical panel condition

• Panel labeling

• Open knockouts

• Missing panel covers

• Damaged breakers or wiring where visible

• Corrosion or moisture near panels

• Blocked electrical panels

• Outlet condition

• Lighting condition

• Extension cord or temporary wiring use

• Exposed or unsupported wiring

• Dedicated circuits for equipment where needed

• Electrical capacity concerns for intended use

Questions to ask:

• Is the electrical service adequate for the planned business?

• Will tenant improvements require electrical upgrades?

• Who pays for electrical upgrades?

• Are there prior electrical repair records?

• Are permits required for planned changes?

• Are there enough outlets for the intended layout?

• Does specialized equipment require additional circuits?

A commercial lease inspection does not replace design review, load calculations, or electrician evaluation. If capacity is important, involve a qualified electrician before signing or before tenant improvements begin.

6. Plumbing and Restrooms

Plumbing issues can create operational problems, repair costs, customer complaints, and tenant improvement delays.

Review visible conditions such as:

• Restroom fixture condition

• Toilet operation

• Sink and faucet condition

• Leaks below sinks

• Water pressure concerns

• Slow drains

• Damaged supply piping where visible

• Corroded piping where visible

• Water heater condition

• Floor drains where visible

• Sewer odors

• Signs of prior backups

• Damaged caulking or sealants

• Leaks around toilets or fixtures

• Janitorial sink condition, if present

Questions to ask:

• Who is responsible for plumbing repairs?

• Are there known sewer or drain issues?

• Are water heater records available?

• Are restroom upgrades needed?

• Does the intended business require additional plumbing?

• Are grease interceptors, floor drains, or specialty plumbing needed?

• Have there been recurring clogs or backups?

Restaurants, salons, medical offices, and certain retail or industrial uses may require more detailed plumbing review before signing a lease.

7. Interior Space Condition

Interior finishes can reveal water intrusion, tenant damage, deferred maintenance, safety concerns, or incomplete improvements.

Review visible conditions such as:

• Wall damage

• Ceiling tile stains

• Damaged flooring

• Uneven floors

• Damaged doors or hardware

• Poor repairs

• Odors

• Moisture staining

• Evidence of pests

• Damaged trim or baseboards

• Missing ceiling panels

• Loose handrails

• Damaged stairs

• Trip hazards

• Incomplete tenant improvements

• Storage or debris left behind

• General cleanliness and maintenance

Questions to ask:

• What repairs will the landlord complete before move-in?

• What repairs are the tenant responsible for?

• Are tenant improvements included?

• Who removes abandoned equipment or debris?

• Are finishes being accepted as-is?

• Are there prior water damage repairs?

• Are any areas excluded from tenant use?

Interior condition matters because it can affect opening costs and business readiness.

8. Fire Doors and Visible Life Safety Conditions

Some commercial spaces include fire-rated doors, corridors, stairwells, mechanical rooms, or other life safety features. Fire door concerns may create maintenance, safety, or compliance questions.

Review visible conditions such as:

• Fire doors that do not close

• Fire doors that do not latch

• Damaged frames

• Damaged closers

• Missing or unreadable labels

• Doors held open with wedges

• Blocked doors

• Blocked corridors

• Damaged exit signs

• Emergency lighting concerns

• Storage around electrical or mechanical equipment

• Missing or damaged hardware

• Trip hazards near exits

Questions to ask:

• Who maintains fire doors and life safety components?

• Are there recent fire door inspection records?

• Are there open fire marshal or life safety issues?

• Are repairs required before occupancy?

• Are common corridors or shared areas part of the tenant’s responsibility?

If fire door documentation is needed, a dedicated fire door inspection may be appropriate.

9. Accessibility-Related Observations

Accessibility requirements can be complex and depend on property type, jurisdiction, alterations, lease terms, and intended use. A lease inspection may identify visible concerns, but it is not a full accessibility compliance audit unless specifically agreed.

Review visible conditions such as:

• Accessible parking route concerns

• Entrance access concerns

• Door width or operation concerns

• Thresholds or transitions

• Restroom access concerns

• Ramp condition

• Handrail or guard concerns

• Obvious barriers in public areas

• Signage concerns

• Path of travel concerns

Questions to ask:

• Are accessibility upgrades needed for the intended use?

• Who is responsible for accessibility-related improvements?

• Will tenant improvements trigger additional requirements?

• Has the space been reviewed by the appropriate design or accessibility professional?

Accessibility questions should be reviewed with the appropriate qualified professional, attorney, design consultant, or authority when needed.

10. Tenant Improvements and Buildout Needs

Many commercial leases involve tenant improvements or buildout work. Before signing, the tenant should understand whether the existing condition supports the planned use.

Review visible considerations such as:

• Wall layout

• Restroom needs

• Electrical needs

• Plumbing needs

• HVAC modifications

• Lighting needs

• Flooring condition

• Ceiling condition

• Fire/life safety impacts

• Accessibility impacts

• Equipment placement

• Ventilation needs

• Grease interceptor needs, if applicable

• Hood system needs, if applicable

• Permitting needs

Questions to ask:

• What improvements are included in the lease?

• Who pays for tenant improvements?

• Who manages the work?

• Are permits required?

• Are contractors already selected?

• Are there deadlines tied to opening or rent commencement?

• What happens if hidden conditions are discovered during buildout?

Buildout planning should happen before signing whenever possible.

11. Mechanical, Storage, and Utility Areas

Mechanical rooms, storage rooms, and utility areas often reveal maintenance patterns.

Review visible conditions such as:

• Cleanliness and organization

• Storage blocking equipment

• Leaks

• Rust or corrosion

• Electrical panel access

• Water heater condition

• HVAC equipment access

• Fire door condition

• Missing covers or panels

• Poor lighting

• Pest evidence

• Abandoned equipment

• Damaged piping or ductwork

Questions to ask:

• Which utility or mechanical areas are included in the leased premises?

• Who maintains these rooms?

• Who has access?

• Are shared systems serving multiple tenants?

• Are there known issues with shared equipment?

These areas may not be part of the sales pitch, but they can reveal important property condition information.

12. Environmental or Prior Use Concerns

Some commercial spaces may have environmental concerns based on current or prior use. This is especially important for properties with automotive, fuel, dry cleaning, industrial, manufacturing, agricultural, or chemical storage history.

Review visible concerns such as:

• Floor drains

• Stains on floors or pavement

• Chemical storage areas

• Odors

• Old tanks or vent pipes

• Former automotive or fuel use

• Former dry cleaner use

• Industrial equipment areas

• Unknown prior uses

• Nearby environmental concerns

Questions to ask:

• What was the prior use of the space?

• Were chemicals, petroleum products, or solvents stored on site?

• Are there prior environmental reports?

• Are there underground storage tanks?

• Has a Phase I ESA been completed?

• Is environmental due diligence needed for this decision?

If environmental concerns are part of the lease or property decision, review Northline’s guide on when a Phase I Environmental Site Assessment may be needed.

13. Documents to Request Before Signing

Before signing a commercial lease, tenants should request available documentation.

Documents may include:

• HVAC service records

• Roof maintenance or repair records

• Plumbing repair history

• Electrical repair records

• Prior inspection reports

• Fire and life safety records

• Fire door inspection records

• Utility information

• Tenant improvement records

• Known repair history

• Common area maintenance information

• Environmental reports if applicable

• Warranties

• Equipment manuals

• Recent contractor proposals

• Landlord maintenance responsibility summaries

For a broader document list, review Northline’s guide to documents buyers should request before purchasing commercial property. Many of the same document categories are also useful for tenants.

14. Questions to Ask Before Signing

Before committing to a commercial lease, tenants should ask:

• What repairs will be completed before move-in?

• Who is responsible for HVAC maintenance and replacement?

• Who is responsible for roof repairs?

• Who maintains plumbing systems?

• Who maintains electrical systems?

• Who maintains parking lots and walkways?

• Who maintains fire doors and life safety systems?

• Are there known leaks or moisture issues?

• Are there open repair proposals?

• Are tenant improvements included?

• Are there existing warranties?

• Are service records available?

• Are common area maintenance costs passed through?

• Are there known code, fire, or building notices?

• Are there restrictions on the intended business use?

• Who pays for upgrades needed for the tenant’s use?

• What condition must the tenant return the space in at the end of the lease?

These questions should be reviewed with the broker, landlord, attorney, and appropriate advisors.

Commercial Lease Inspection Checklist Summary

Use this simplified checklist before signing, renewing, or negotiating a commercial lease:

• Confirm property address, suite, and leased areas

• Review lease type and responsibility structure

• Confirm intended business use

• Review exterior and site conditions

• Check parking, walkways, drainage, and access

• Look for roof leak indicators and water stains

• Review HVAC equipment condition and service history

• Review electrical system concerns and capacity needs

• Review plumbing and restroom conditions

• Check interior finishes and tenant improvement needs

• Review fire doors and visible life safety concerns

• Consider accessibility-related observations

• Review utility and mechanical areas

• Ask about prior use and environmental concerns

• Request maintenance, repair, and service records

• Clarify who is responsible for repairs before and after move-in

• Build in time for contractor or specialist follow-up

• Review lease terms with a qualified commercial real estate attorney or advisor

A lease inspection helps document visible property conditions so tenants and business owners can make better-informed decisions before committing to the space.

Commercial Lease Inspections in Boise and Southern Idaho

Northline Inspection Co. provides commercial lease inspection services throughout Boise, the Treasure Valley, and Southern Idaho.

Northline helps business owners, commercial tenants, franchise owners, brokers, property managers, and landlords better understand visible property conditions before signing, renewing, or negotiating a commercial lease.

A lease inspection can be especially useful for triple net leases, franchise locations, restaurants, retail spaces, offices, medical offices, warehouses, and out-of-state companies

entering the Idaho market.

Request a Commercial Inspection Quote