The True Cost of Commercial Vacancy in San Diego and How Proper Leasing Prevents It
Commercial vacancy costs San Diego property owners far more than missed rent. The actual financial impact may include unreimbursed operating expenses, utilities, insurance, property taxes, repairs, marketing, tenant improvements, leasing commissions, financing pressure and a potential decline in the property’s value.
A vacancy that appears to cost $10,000 per month can therefore have a substantially greater effect on cash flow and long term investment performance.
For commercial property owners, the objective should not simply be to fill vacant space. The goal is to attract a financially qualified tenant, negotiate a lease that protects the ownership and reduce the likelihood of another vacancy a few months or years later.
How Much Does Commercial Vacancy Cost in San Diego?
A practical commercial vacancy calculation is:
Lost base rent + lost expense reimbursements + vacancy-related expenses + turnover and leasing costs + potential property value impact − expenses avoided during vacancy
The calculation varies depending on whether the property is office, retail or industrial and whether the lease is structured as full-service, modified gross or triple net.
For example, a landlord with a vacant triple-net space may lose both base rent and the tenant’s share of property taxes, insurance and common-area expenses. With a full service office lease, many operating expenses are already included in the quoted rent, but the landlord must continue paying most of those expenses even when the suite is empty.
Current San Diego Commercial Vacancy Rates
San Diego’s commercial real estate market varies significantly by property type and submarket. According to second-quarter 2026 market research:
Property type | Vacancy rate | Average asking rent |
Office | 13.4% | $3.15/SF per month, full service |
Retail | 4.5% | $2.38/SF per month |
Industrial | 7.4% | $1.47/SF per month, NNN |
Sources: San Diego Office Market Report, San Diego Retail Market Report and San Diego Industrial Market Report, Q2 2026.
These are countywide averages. Actual vacancy, rental rates and leasing velocity can differ substantially between submarkets such as Downtown San Diego, Mission Valley, UTC, Kearny Mesa, Carlsbad, La Mesa, Chula Vista, Escondido and Otay Mesa.
Property condition, visibility, parking, permitted uses, suite size and lease structure also affect how quickly a space leases.
The Seven Major Costs of Commercial Vacancy
1. Lost Base Rent
Lost rent is the most visible cost of vacancy.
A 5,000-square-foot San Diego office suite offered at the Q2 2026 average asking rate
of $3.15 per square foot would generate approximately:
5,000 SF × $3.15 = $15,750 per month
If the suite remains vacant for nine months, the property would miss approximately:
$15,750 × 9 months = $141,750 in gross scheduled rent
That figure does not necessarily reflect the final economic lease rate, concessions or expenses, but it demonstrates how quickly vacancy exposure can accumulate.
2. Lost Operating-Expense Reimbursements
In many retail and industrial leases, tenants reimburse the landlord for some or all of the property’s operating expenses. These charges may include:
Common-area maintenance
Property taxes
Property insurance
Landscaping
Trash service
Security
Utilities
Association expenses
When a suite is vacant, the tenant’s reimbursement stops, but most of the underlying expenses continue. The landlord or the remaining tenants, depending on the lease language, must absorb the shortfall.
A prolonged vacancy can therefore affect the financial performance of the entire property, not just the empty suite.
3. Utilities, Maintenance and Security
Vacant commercial space still requires attention. Depending on the property, the landlord may need to pay for electricity, water, HVAC operation, cleaning, pest control, security, landscaping and periodic inspections.
A completely dark or neglected suite can also become more difficult to lease. Prospective tenants may interpret deferred maintenance, poor lighting or stale interiors as evidence that the property is not professionally managed.
4. Repairs and Turnover Costs
Most commercial spaces require some work before they can be shown effectively or delivered to a new tenant. Common turnover expenses include:
Removing abandoned furniture or equipment
Repairing walls, ceilings and flooring
Repainting
Replacing damaged doors or fixtures
Updating lighting
Correcting code or accessibility issues
Cleaning the suite
Restoring signage
Reconfiguring the floor plan
Delaying this work until a tenant is ready to sign can extend the vacancy. Evaluating the condition of the space early allows the landlord to complete essential work while marketing is underway.
5. Tenant Improvements, Concessions and Leasing Costs
Securing a qualified tenant may require an additional investment. Depending on the market and the condition of the space, the transaction could include:
Tenant-improvement allowances
Turnkey improvements
Free rent
Moving allowances
Architectural or engineering expenses
Legal fees
Leasing commissions
These costs should be evaluated against the full value and risk of the proposed lease. A strong tenant committing to a longer term may justify a larger upfront investment than a lightly capitalized tenant requesting a short lease.
The lowest cost proposal is not always the best transaction. The owner should compare the lease term, tenant credit, guarantees, improvement costs and expected return as a complete package.
6. Financing and Property-Value Impact
Commercial property value is generally influenced by the property’s net operating income. When vacancy reduces income or increases unreimbursed expenses, the property’s value may decline.
For illustration, if a vacancy reduces stabilized annual net operating income by $100,000 and a buyer applies a 6.5% capitalization rate, the implied value impact could be:
$100,000 ÷ 6.5% = approximately $1.54 million
This is a simplified example rather than an appraisal. However, it demonstrates why vacancy can become especially costly when an owner is preparing to refinance or sell.
Lenders and buyers may also scrutinize:
Current occupancy
Upcoming lease expirations
Tenant credit
Lease rollover concentration
Delinquencies
Short-term leases
Concessions
Deferred maintenance
Unfunded tenant-improvement obligations
A well leased building generally provides more predictable income and may be easier to finance or sell.
7. Lost Time and Management Attention
Vacancy requires ongoing decision-making and coordination. Ownership may need to review proposals, approve improvements, respond to maintenance issues, communicate with contractors and monitor marketing activity.
Without a coordinated leasing process, inquiries may go unanswered, follow-up can be inconsistent and qualified prospects may move on to competing properties.
Professional leasing management helps keep the transaction moving while giving the owner control over major financial and lease decisions.
The Danger of Holding Out for an Unrealistic Rental Rate
Starting with an ambitious asking rate can be a reasonable strategy when it is supported by the property and the market. The danger comes from failing to respond when the market provides consistent feedback.
Consider the earlier 5,000-square-foot office example at $3.15 per square foot. A 3% rent premium would produce approximately $472.50 more per month. Over a 36-month lease, that premium would total approximately $17,010.
One additional month of vacancy costs approximately $15,750 in gross scheduled rent. Therefore, a little more than one extra month of downtime could eliminate the entire 3 year benefit of the higher rate before considering other costs.
This does not mean an owner should automatically reduce the rent. It means pricing should be based on current lease comparables, competing availability, property condition and actual prospect feedback.
How Proper Commercial Leasing Reduces Vacancy
Begin Before the Existing Tenant Leaves
The leasing process should ideally begin well before the current lease expires. The appropriate timeline depends on the suite size and complexity, but owners should generally start evaluating renewal or remarketing options six to twelve months before expiration.
Early planning provides time to:
Negotiate a renewal
Inspect the suite
Determine necessary repairs
Prepare marketing materials
Schedule photographs and floor plans
Establish an asking rate
Begin pre-leasing
Coordinate turnover work
Waiting until the tenant has moved out creates an avoidable gap before marketing even begins.
Price the Space Using Current Lease Comparables
Online asking rates do not always reveal the complete economics of a transaction. A proper lease comparable analysis should consider:
Effective rent
Free-rent periods
Tenant-improvement allowances
Lease term
Annual increases
Operating expense structure
Parking charges
Property condition
Tenant credit
Space size and configuration
A nearby property asking a similar rate may offer substantially different concessions or amenities. Effective rental economics provide a more useful comparison than the advertised rate alone.
Present the Property Professionally
Most commercial tenants begin their search online. Incomplete listings, poor photographs and missing information can cause prospects to overlook an otherwise suitable property.
An effective commercial leasing campaign may include:
Professional photography
Accurate floor plans
Three dimensional virtual tours
Property brochures
Exterior signage
Major commercial real estate listing websites
Direct outreach to brokers and prospective users
Clear suite specifications
Responsive showing coordination
The objective is to give prospects enough information to determine whether the property may fit their needs—and then make it easy for them to schedule a tour.
Respond Quickly and Follow Up Consistently
Commercial tenants often evaluate several properties at once. Delayed responses can result in a qualified prospect selecting another location before the owner receives an offer.
A structured leasing process should track inquiries, showings, feedback, proposals and follow up activity. Repeated objections about price, condition, parking or layout should be reported to ownership so the strategy can be adjusted when necessary.
Screen the Tenant Carefully
Filling a space quickly with the wrong tenant can be more expensive than allowing additional time for proper screening.
A thorough commercial tenant review may include:
Business and personal credit
Financial statements
Bank statements
Tax returns
Business history
Prior landlord references
Eviction and criminal background checks
Personal guarantors
Additional security deposits
Industry and use analysis
No screening process can guarantee that a tenant will perform. However, careful underwriting helps the owner make an informed decision and determine whether additional lease protections are appropriate.
Negotiate the Entire Transaction
The highest proposed rent is not automatically the strongest deal. Owners should compare proposals based on the complete economic and risk profile, including:
Base rent
Lease term
Increases
Free rent
Tenant improvements
Security deposit
Personal or corporate guarantees
Operating-expense reimbursements
Options to extend
Assignment and subletting rights
Use provisions
Delivery requirements
Early termination rights
A slightly lower rental rate from a financially stronger tenant may create more dependable long-term value than a higher rate from a tenant with limited capital.
Coordinate Leasing and Property Management
Leasing and property management work best when they are connected. Property managers often identify operational issues, tenant concerns and upcoming expirations before they become leasing problems.
An integrated approach can help ownership:
Track critical lease dates
Address tenant concerns sooner
Plan renewals proactively
Prepare vacant suites faster
Maintain consistent property presentation
Evaluate tenant payment history
Coordinate contractors and improvements
Reduce communication gaps
Tenant retention is often the least expensive vacancy-prevention strategy. Although not every tenant should be retained, strong tenants should not be lost because their concerns or renewal deadlines were overlooked.
What Is the Best Way to Reduce Commercial Vacancy in San Diego?
The best strategy is to treat leasing as an ongoing asset-management function rather than an activity that begins after a suite becomes empty.
Owners should monitor lease expirations, communicate with tenants, maintain the property, review market conditions and prepare renewal or remarketing strategies well in advance. When a vacancy occurs, the space should be priced realistically, presented professionally and supported by consistent follow up.
The objective is not merely maximum occupancy. It is sustainable occupancy with qualified tenants and lease terms that support the property’s long-term value.
Frequently Asked Questions
What is the true cost of commercial vacancy?
The true cost includes lost rent, lost operating-expense reimbursements, utilities, maintenance, repairs, marketing, tenant improvements, leasing costs and the potential effect on financing and property value. The total is often considerably greater than the advertised monthly rent.
Is it better to lower the rent or leave a commercial space vacant?
It depends on the property, tenant and proposed lease terms. Owners should compare the income gained from a higher rate with the cost of additional downtime. A modest rent adjustment may be financially preferable when it materially shortens the vacancy, but rental decisions should be supported by comparable transactions and current market feedback.
How early should a landlord begin marketing commercial space?
Planning should generally begin six to twelve months before the existing lease expires. Larger or highly specialized spaces may require an even longer lead time.
Can a commercial property be marketed while the tenant is still occupying it?
Yes, subject to the existing lease’s access and notice provisions. Pre-leasing can reduce downtime, but showings should be coordinated carefully to minimize disruption to the current tenant.
How can landlords attract better commercial tenants?
Competitive pricing, professional marketing, responsive communication, a well maintained property and reasonable lease terms help attract qualified prospects. Careful financial screening and appropriate guarantees help the owner evaluate risk before approving an application.
Why can a bad tenant be more expensive than vacancy?
An underqualified tenant may default, damage the premises, create legal expenses or require another round of improvements and leasing costs. This can produce two vacancies instead of one. Tenant quality should therefore be evaluated alongside rent and lease term.
Does commercial vacancy reduce property value?
It can. Vacancy may reduce net operating income, increase perceived risk and make financing more difficult. Because commercial property values are often tied to income, a sustained reduction in NOI can have a multiplied effect on the property’s estimated value.
Protect Your San Diego Commercial Property From Prolonged Vacancy
The Herbert Group at McKee Commercial helps San Diego owners lease and manage office, retail and light industrial properties. Our landlord focused process combines market analysis, professional photography, floor plans, three dimensional virtual tours, extensive online marketing, property showings, tenant screening and lease negotiations.
Because we represent landlords rather than tenants, our leasing strategy remains focused on the ownership’s objectives, risk tolerance and long term property value.
If you have an existing vacancy or a lease expiration approaching, contact McKee Commercial | The Herbert Group for a confidential leasing and vacancy review.
