Vacancy Rate in Real Estate

A vacancy rate in real estate measures the percentage of rentable space that sits unoccupied or untenanted in a building or market. It comes in two flavors: physical vacancy (units actually empty) and economic vacancy (rent loss from turnover, collection losses, and concessions), both of which directly reduce property cash flow and inform investor underwriting.

Physical vacancy versus economic vacancy

Physical vacancy is the simple headcount: of 100 apartment units, how many are unoccupied on a given date? If 8 are empty, the physical vacancy is 8%. This metric is straightforward to measure and is the one most often reported in market surveys and press releases.

Economic vacancy is broader and more relevant to valuation. It captures all rent losses, not just empty units. It includes:

• Units between tenants (physically vacant while being re-let).
• Units occupied but subject to concessions—free rent for the first month, reduced rent, paid utilities—offered to attract tenants in a soft market.
• Rent collection losses from tenant defaults or evictions.
• Rent revenue forgone from owners holding units off the market (rare, but it happens during renovation).

If a property has 5% physical vacancy but tenants received an average of one month free rent during lease-up, and another tenant is 60 days behind on rent, economic vacancy might be 8–10%, even though only 5% of units are visibly empty.

Economic vacancy is the better predictor of cash flow. Two properties with the same physical vacancy can have very different economics if one is charging concessions and the other is not.

Measuring and forecasting vacancy in pro forma underwriting

When an investor builds a financial model (“pro forma”) for a purchase or refinance, vacancy must be forecast for each year of the holding period. Industry practice:

Conservative approach: Use historical market vacancy as a baseline, then adjust up or down based on property-specific factors. If the market average is 6% but the subject property is well-maintained and in high demand, use 5%. If it’s aging and in a declining area, use 8–10%.

Scenario analysis: Project low (3%), base (6%), and high (10%) vacancy cases and see how returns differ. Many lenders now require stress-testing at elevated vacancy—e.g., 15% during recession—to measure downside risk.

Lease-up and stabilization: New or repositioned buildings undergoing lease-up can experience 20–30% vacancy in the first year. The pro forma should model a gradual ramp to stabilized vacancy (often 5–7%) by year two or three, reflecting the time needed to attract and retain tenants.

Higher vacancy assumptions reduce projected cash flow and property valuation, so investors and appraisers are incentivized to use realistic, sometimes conservative, estimates.

Impact on net operating income

Net Operating Income (NOI) is the lender’s and investor’s primary valuation metric. It equals gross potential income minus actual collected rent and operating expenses.

Example: A 200-unit apartment complex with a $1,400/month average rent.

• Gross potential income: 200 units × $1,400 × 12 = $3,360,000
• Less: Economic vacancy loss (7%): -$235,200
• Effective rental income: $3,124,800
• Less: Operating expenses (40%): -$1,249,920
• NOI: $1,874,880

If vacancy rises to 10%, effective rental income drops to $3,024,000 and NOI to $1,814,400—a decline of $60,480, or 3.2%. Lenders capitalize NOI to derive a property value. If the cap rate is 5%, a $60,480 drop in NOI implies a property value loss of $1.2 million. Vacancy risk, then, is material to deal economics.

Market vacancy rates as indicators

Broad vacancy rates in a market—reported by CoStar, CBRE, Jones Lang LaSalle, and local brokers—reveal supply-demand balance and pricing power:

• Tight market (2–4% vacancy): Landlords can raise rents, offer few concessions, and enjoy strong cash flow. Competition for space is fierce. Risk: new supply coming online or a recession can rapidly flip the market.
• Balanced market (5–7% vacancy): Normal conditions. Rents rise modestly with inflation. Landlords offer standard tenant allowances and modest concessions. Competition is moderate.
• Soft market (8–12% vacancy): Landlords compete on price and concessions. Rent growth stalls or declines. Property values may decline. This environment often signals over-building or economic weakness.
• Stressed market (>12% vacancy): Severe oversupply. Rents may fall 10–20%. Concessions are steep (2–3 months free). Property values decline sharply. Capital becomes scarce for new deals.

Investors use market vacancy as a leading indicator. A rising vacancy trend signals deterioration ahead, prompting cautious acquisition or sale decisions. Falling vacancy and low concessions suggest appreciation potential and stronger lending terms.

Vacancy by property type and geography

Vacancy varies widely by asset class and region:

Apartments: Typically 5–7% in normal markets, reflecting tenant turnover and time-to-lease. Urban markets with strong in-migration trend lower. Declining metros trend higher.

Office: Post-2020, office vacancy has spiked to 10–15% in many major metros as remote work reduced demand. New office construction has largely halted.

Retail: 6–10% in many markets, with Class C properties (older, secondary locations) running 12–15%. E-commerce has reduced demand for traditional retail.

Industrial/warehouse: 3–5%, the tightest class, benefiting from e-commerce logistics demand. Some West Coast metros are at 2% vacancy, creating landlord pricing power.

Geographic variation is stark: a 5% vacancy rate in a Sun Belt boom market may signal equilibrium, while 5% in a legacy industrial city may mean deterioration.

Seasonality and cyclicality

Vacancy also fluctuates with the year and the business cycle. Summer sees lower apartment vacancy (peak moving season); winter sees higher. Recessions push vacancy up across all property types as tenants consolidate space or fail to pay. Expansions lower vacancy.

Smart investors model not just average vacancy but cyclical patterns, accounting for the position in the business cycle at acquisition and hold period.

See also