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BC Commercial Lease Guide for Realtors: Net Leases, CAM Charges & Key Clauses (2026)

Many BC realtors who primarily work in residential real estate occasionally encounter commercial tenancies — when representing buyers purchasing a retail plaza, strip mall unit, or mixed-use building with commercial tenants, or when listing an investment property with a business in place. Understanding commercial lease fundamentals is not optional in these situations: the lease is often the most valuable asset being transferred in the transaction, and its terms directly determine the property's income, value, and risk profile. This guide covers the commercial lease basics every BC realtor should know.

May 2026·14 min read·Magnate360

Commercial vs. Residential Tenancy: The Critical Difference

The BC Residential Tenancy Act provides extensive statutory protections for residential tenants: fixed rent increases, no-fault eviction restrictions, standardized notice periods, mandatory dispute resolution through the RTB. None of this applies to commercial tenants. Commercial leases are governed by the BC Commercial Tenancy Act (minimal provisions) and contract law — what the parties agreed to in the lease is what governs.

FeatureResidential TenancyCommercial Tenancy
Governing lawBC Residential Tenancy ActContract law + BC Commercial Tenancy Act
Rent increase limitsAnnual cap tied to CPI (2–3.5% in recent years)No limit — as negotiated in the lease
Eviction protectionsExtensive — specific grounds requiredAs per lease terms; landlord has more flexibility
Dispute resolutionBC Residential Tenancy BranchBC Supreme Court (civil litigation)
Standard lease formRTB standard form requiredFully negotiated; no standard form
Security depositCapped at 0.5 month's rentNegotiated — 2–6 months common

Mixed-Use Buildings: Know Which Act Applies

In a mixed-use building with a retail ground floor and residential units above, the commercial units are governed by the Commercial Tenancy Act and the residential units by the Residential Tenancy Act. When purchasing mixed-use buildings, confirm which tenancies are commercial and which are residential — they have completely different due diligence requirements.

Commercial Lease Structures: Gross, Net, and Everything in Between

The most important question in any commercial lease is: who pays for what? The answer determines the true net income to the landlord and the total occupancy cost to the tenant.

Gross Lease (Full Service)

Tenant pays one all-in rent. Landlord pays all operating costs: property tax, insurance, utilities, maintenance, management. Most common in older office buildings and some industrial.

Tenant pays: $4,000/month
Landlord pays: property tax, insurance, maintenance, utilities
Landlord's net income: $4,000 minus all operating costs

Net Lease (Single Net / N)

Tenant pays base rent + their proportionate share of property taxes. Landlord still pays insurance and maintenance. Less common.

Tenant pays: $3,000/month base + $200/month property tax
Landlord pays: insurance, maintenance
Landlord's net income: $3,000/month (more predictable)

Double Net Lease (Net Net / NN)

Tenant pays base rent + property taxes + building insurance. Landlord pays maintenance and structural repairs. Common in some retail and office.

Tenant pays: $2,800/month base + $200 taxes + $150 insurance
Landlord pays: maintenance, structural
Landlord's net income: $2,800/month

Triple Net Lease (NNN) — Most Common for Standalone Retail

Tenant pays all costs: base rent + property taxes + insurance + all maintenance and repairs. The landlord's income is nearly passive. Used for national retailers (Tim Hortons, McDonald's, pharmacies) and most standalone commercial buildings.

Tenant pays: $2,500/month base + all taxes + insurance + maintenance
Landlord pays: nothing (or structural only)
Landlord's net income: $2,500/month (highly predictable)

NNN leases with creditworthy national tenants command premium cap rates and are highly valued as investment properties

Modified Gross / Net Plus CAM (Most Common in Multi-Tenant Buildings)

Tenant pays base rent + their proportionate share of CAM charges (property tax, insurance, operating costs, management fee). Base rent covers the landlord's ownership cost; CAM is the operating cost pass-through. Most strip malls and office buildings use this structure.

Tenant pays: $3,000/month base + $800/month CAM (estimated)
Total occupancy cost: $3,800/month
Annual CAM reconciliation adjusts for actual vs. estimated costs

CAM Charges: What They Include and How to Analyze Them

CAM (Common Area Maintenance) charges in a multi-tenant building typically include:

Typically Included in CAM

  • • Property taxes (landlord's share)
  • • Building insurance
  • • Common area utilities (parking lot lights, hallway HVAC)
  • • Parking lot maintenance and snow removal
  • • Landscaping
  • • Common area cleaning
  • • Building management fees (often 10–15% of other CAM costs)
  • • Security systems
  • • Elevator maintenance (if applicable)

Sometimes Included / Negotiable

  • • Capital improvements (roof replacement, parking lot repaving)
  • • Structural repairs
  • • Leasing commissions
  • • Legal and accounting fees
  • • Merchant association fees
  • • Marketing and promotion
  • • Administrative overhead

Analyzing CAM in an Investment Property Purchase

When underwriting an investment property with CAM-paying tenants, buyers should request actual CAM reconciliation statements for the past 2–3 years. Key questions:

  • Are CAM charges capped? Some leases have CAM caps (e.g., annual increases limited to 5%). A cap limits upside recovery of rising costs but provides predictability for tenants and can be a selling point.
  • What does the management fee percentage apply to? If the management fee is 15% of all other CAM costs, that's compounding — higher as other costs rise. Watch for management fees on capital items.
  • Are there outstanding reconciliation disputes? Tenants who dispute CAM charges represent contingent liability — request confirmation that all reconciliations have been accepted and paid.
  • Who is excluded from the CAM pool? Anchor tenants (large grocery stores, major retailers) often negotiate their own managed spaces and pay a fixed contribution rather than a proportionate share — which increases the CAM burden on smaller tenants.

Key Commercial Lease Clauses Every Realtor Should Know

Permitted Use

High Impact

Defines exactly what business the tenant can operate. A lease permitting 'retail sales of clothing' cannot be used for a restaurant or cannabis dispensary. When an investment property is purchased, the permitted use determines whether the buyer can change tenant mix — and whether the current tenant can expand their business type.

Exclusivity Clause

High Impact

Grants the tenant the exclusive right to operate a specific type of business in the building or plaza. An exclusivity clause for 'hair services' prevents the landlord from leasing to any other hair salon. These clauses survive ownership changes and can significantly restrict future leasing to new tenants.

Assignment and Subletting Rights

High Impact

Determines whether and how the tenant can assign the lease to a new business. Most commercial leases require landlord consent to assign (not to be unreasonably withheld). Strong assignment rights make a tenant's business easier to sell — which benefits both tenant and landlord if the replacement tenant is creditworthy.

Renewal Options

Medium-High Impact

Options to renew the lease at the end of the term — at a specified rent or at market rent. Multiple renewal options (e.g., two five-year options) can extend a lease to 15–20 years, locking in a long-term tenant. Important for investment value: a tenant with remaining options is worth more than one with an expiring lease.

Rent Escalation / CPI Adjustments

Medium Impact

How rent increases over the lease term. Fixed annual increases (e.g., 2.5%/year) are predictable. CPI-based increases track inflation. 'Fair market rent' resets at renewal can jump significantly in strong markets. For investment analysis, model the rent escalation schedule across the full lease term including renewals.

Tenant Improvement (TI) Allowance

Medium Impact

An upfront cash contribution from the landlord to help the tenant build out their space. A $100,000 TI allowance from the original landlord is already paid and gone — but the buyer inherits the obligation to honor any remaining TI allowance on future lease renewals or new leases. Check whether any TI obligations are outstanding.

Demolition / Redevelopment Clause

Variable Impact

Allows the landlord to terminate the lease if they plan to demolish or redevelop the building, typically with 6–12 months notice. Present in urban mixed-use properties in redevelopment zones. Valuable for landlords who want flexibility, problematic for tenants who have invested heavily in the space.

Personal Covenant / Guarantee

High for landlord Impact

Personal guarantee by the principals of a corporate tenant. If the tenant corporation defaults, the guarantors are personally liable. A lease backed by a personal guarantee from a creditworthy individual is worth significantly more than one guaranteed only by a corporate entity. Review guarantee terms — some are limited in time or amount.

Commercial Lease Due Diligence Checklist for Investment Property Buyers

When representing a buyer purchasing a property with commercial tenants, request and review the following before subject removal:

Full lease agreement and all amendments, modifications, and side letters
Lease commencement and expiry dates + all renewal option periods
Current rent schedule and all future scheduled increases
CAM reconciliation statements for past 3 years
Current CAM budget/estimate for the current year
Details of any pending CAM disputes with tenants
TI allowance history and any outstanding TI obligations
Personal guarantee documents and guarantor financial information
Security deposit amounts held and any claimed amounts
Permitted use provisions for each tenant
Exclusivity clauses and their specific terms
Assignment/subletting history and consents given
Outstanding maintenance obligations or deferred repairs
Tenant correspondence re: any disputes or claimed breaches
Business license verification for each tenant
Tenant financial statements or covenant strength evidence

Calculating NOI and Cap Rate for Commercial Properties

Commercial properties are valued on their income — specifically Net Operating Income (NOI) capitalized at a market cap rate. Understanding this is essential for any realtor working with investment properties, including smaller mixed-use and retail buildings that show up in residential investment portfolios.

NOI Calculation Example

Gross scheduled rent (all tenants): $180,000/yr

Less: vacancy allowance (5%): ($9,000)

Effective gross income: $171,000/yr

Operating expenses (landlord-paid):

Property management (8%): ($13,680)

Insurance: ($4,500)

Maintenance & repairs: ($6,000)

Property taxes (if not NNN): ($0 - NNN lease)

Total operating expenses: ($24,180)

Net Operating Income (NOI): $146,820/yr

Market cap rate for this property type: 5.5%

Implied value (NOI ÷ Cap Rate): $2,669,455

Property TypeTypical Cap Rate (BC, 2025)Notes
NNN with national tenant (A-credit)4.0–5.0%Tim Hortons, Dollarama, pharmacy — low risk, low yield
Multi-tenant strip retail (good market)4.5–6.0%Metro Van suburban; quality tenant mix
Office (suburban)5.5–7.5%Higher cap rates post-COVID; rising vacancy
Industrial / light industrial3.5–5.0%BC industrial in high demand; compressed caps
Mixed-use (retail + residential)4.5–6.0%Blended based on unit mix; zoning value can exceed income value

Client Advisory Scripts

Script 1 — Buyer of a Strip Mall (First Investment)

“This property has 5 tenants, so before we remove subjects, I'm going to request full lease packages for all 5. What we need to understand is: what is each tenant actually paying, what are they responsible for, and how long do they have left on their lease? The list price is based on the current rents, but a tenant with 2 months left on their lease is very different from a tenant with 5 years plus renewal options. We'll also look at the CAM reconciliations to make sure there are no disputed amounts. This will take a week to review properly — let's write in a 10-day due diligence period minimum.”

Script 2 — Seller with a Commercial Tenant

“Before we list, I want to understand the lease structure because it affects our pricing strategy. If the tenant is on a long-term NNN lease at below-market rent, sophisticated investors will discount the price to reflect the below-market income. If they're on a gross lease and paying above-market rent, we need to be clear about what the true net income is. Can you share the full lease including any amendments? I'll also want the last 2–3 years of CAM reconciliations so buyers can verify the operating cost history.”

Script 3 — Buyer Finding an Exclusivity Clause

“I found something in the pharmacy tenant's lease that we need to discuss. They have an exclusivity clause — it says you can't rent to any other health, wellness, or pharmacy-related business in this building. That's a significant restriction on your future leasing. If the pharmacy ever leaves, you can't replace them with a competitor health business. This exclusivity survives the ownership change — you're inheriting this restriction. Does this change how you think about the property? We should also get a commercial real estate lawyer to confirm the exact scope of the exclusivity.”

Script 4 — Evaluating Tenant Covenant Strength

“One of the five tenants is a numbered company with no personal guarantee. That means if they go out of business, you have no recourse beyond what's in the trust account. The other four leases all have personal guarantees from the principals. For investment purposes, that numbered company's lease is worth less — we should model this assuming a possible vacancy and adjust the cap rate accordingly. I'd recommend we request 2 years of financial statements from that tenant before subject removal. If they can't provide them, that's a red flag on covenant strength.”

Frequently Asked Questions

What is the difference between a gross lease and a net lease in BC commercial real estate?

In a gross lease, the tenant pays all-in rent and the landlord covers all operating costs. In a net lease, the tenant pays base rent plus some or all operating costs. Triple net (NNN) leases require tenants to pay base rent plus property taxes, insurance, and all maintenance — making the landlord's income nearly passive. Modified gross/net plus CAM is most common in multi-tenant buildings.

What are CAM charges in a commercial lease?

CAM (Common Area Maintenance) charges are a tenant's proportionate share of operating costs for the building and common areas — property taxes, insurance, maintenance, landscaping, parking lot, management fees. CAM is estimated monthly and reconciled annually based on actual costs. CAM charges vary significantly by lease and building type — always review historical reconciliations when underwriting an investment property.

Does BC's Residential Tenancy Act apply to commercial leases?

No. The BC Residential Tenancy Act does not apply to commercial tenancies. Commercial leases are governed by contract law and the BC Commercial Tenancy Act (which provides minimal statutory framework). Commercial tenants have far fewer automatic protections — rent increases, eviction grounds, and dispute processes are determined entirely by the negotiated lease terms.

What is a personal covenant in a commercial lease and why does it matter?

A personal covenant is a guarantee by the business principals that they are personally responsible if the corporate tenant defaults. It means if the business fails, the landlord can pursue the individuals. A lease backed by a personal guarantee from a creditworthy guarantor is worth more than one guaranteed only by a corporation — critical for investment property underwriting.

What should a buyer review in a commercial tenant lease before purchasing an investment property?

Key items: remaining lease term and renewal options, base rent and escalation schedule, lease structure (gross/net/NNN) and what costs the tenant pays, permitted use restrictions, exclusivity clauses, assignment/subletting rights, personal guarantees, outstanding TI allowances, CAM reconciliation history, and any disputes or claims between landlord and tenant.

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