Loss to Lease

What Is Loss to Lease?

Loss to lease measures how much below market rent your tenants are currently paying. If market rent for a unit is $1,200 per month and the tenant pays $1,050, the loss to lease is $150 per month or $1,800 per year for that unit. Across a property, loss to lease quantifies the total revenue gap between what the property currently earns and what it could earn at market rates. This gap represents either a management failure (the previous owner was not keeping up with the market) or a deliberate strategy (retaining long-term tenants with below-market rents to minimize turnover).

Loss to Lease as a Value-Add Indicator

Loss to lease is one of the most important metrics for value-add investors. A property with significant loss to lease has built-in upside that does not require physical improvements — you can increase income simply by raising rents to market levels as leases expire. This is sometimes called "organic" value-add because it does not require renovation capital. The value-add investor's playbook often combines closing the loss-to-lease gap through market-rate renewals with renovations that push rents above the current market, creating a double uplift in income.

Formula and Example

Loss to Lease = (Market Rent − In-Place Rent) × Number of Units × 12 Months. Consider a 30-unit apartment building where current average rent is $950 and market rent is $1,050. Loss to Lease = ($1,050 − $950) × 30 × 12 = $36,000 per year. At a 6% cap rate, capturing this $36,000 in additional NOI would increase the property's value by $600,000. If the property costs $2,500,000, closing the loss-to-lease gap alone creates a 24% increase in value — before any physical improvements.

How to Capture Loss to Lease

Loss to lease is captured primarily through two mechanisms: lease renewals and tenant turnover. At renewal, offer existing tenants a rent increase to market (or near market) — some will accept, some will leave. Turnover creates the opportunity to re-lease the unit at full market rent, often after performing minor cosmetic updates. The timeline for capturing loss to lease depends on the lease expiration schedule — if all leases expire within 12 months, you can close the gap quickly. If leases are staggered over 2–3 years, the capture is more gradual. Strategic renovations during turnover justify premium rents that exceed the current market, converting loss to lease into gain to lease.

Analyzing Loss to Lease in Acquisitions

When evaluating an acquisition, always calculate loss to lease as part of your underwriting. Request a rent roll showing each unit's current rent and lease expiration date, then research market rents through comps, rental listings, and property management data. Be conservative in your market rent assumptions — the seller will paint the rosiest picture. Also consider why the loss to lease exists: is it simply poor management, or are there property condition issues that prevent charging market rents? A building with $50,000 in loss to lease but $200,000 in deferred maintenance may not be the value-add opportunity it appears.