The NOI Playbook/For owners
NOI and cap rate: what $1,000 a month in savings is worth to your building
A thousand dollars a month sounds like a rounding error on a commercial property. Run it through the cap rate and it starts to look like a renovation.
Owners tend to think about savings in monthly terms because that is how bills arrive. Buyers and lenders think about them in annual terms, then multiply. Understanding that multiplication is the difference between ignoring a $1,000 line item and fixing it this quarter.
The formula
Value=NOI÷Cap rate
The capitalization rate is the return a buyer expects from a property’s income, expressed as a percentage of its price. Lower cap rates mean investors pay more for each dollar of income. Cap rates vary by property type, location, condition and the market at the time, so treat any single number as an assumption, not a fact.
One property, $1,000 a month
A recurring saving of $1,000 a month is $12,000 a year of additional NOI, assuming the owner carries the expense.
| Cap rate | Annual NOI added | Value added |
|---|---|---|
| 5.5% | $12,000 | $218,182 |
| 6.25% | $12,000 | $192,000 |
| 7% | $12,000 | $171,429 |
| 8% | $12,000 | $150,000 |
Illustrative, before any service fee. Value is annual savings divided by the cap rate; an estimate for planning, not an appraisal.
Put another way: at a 6.25% cap rate, every dollar of monthly saving is worth about $192 of value. That is the number on our value calculator, and it is why a single overcharge deserves attention.
Over three years, across a portfolio
Savings add up across time and across a portfolio. Here is the same $1,000 a month, held for three years, at one, three and five properties.
| Properties | Cash kept over 3 years | Value added, any year, at 6.25% |
|---|---|---|
| 1 | $36,000 | $192,000 |
| 3 | $108,000 | $576,000 |
| 5 | $180,000 | $960,000 |
Illustrative, before any service fee. Assumes $1,000 a month saved at each property and carried by the owner.
The cash column is what you keep. The value column is what the savings are worth to a buyer if they last, which is why durable corrections, written into the contract, matter more than one-time credits.
What makes a saving count
- It recurs. A one-time refund is welcome, but it does not change NOI going forward.
- It is documented. Buyers underwrite trailing income and expenses. A correction that shows up on invoices month after month, backed by a contract amendment, is easy to believe.
- It is the owner’s to keep. Under leases that pass expenses through to tenants, or where trash is billed back to residents, a saving lowers reimbursements instead of raising NOI. It still lowers occupancy cost, which helps leasing.
Where to find the first $1,000
Start with recurring, contract-governed bills that nobody reads closely. Waste service is a common one: fuel and environmental surcharges, increases above the contract’s cap, rent on containers the property already owns and fees the contract never lists can each add up month after month. The clauses to check.
Questions
How do you calculate property value from NOI?
Divide annual NOI by the cap rate. A property with $300,000 of NOI at a 6% cap rate is valued at about $5,000,000. This is an estimate; appraisals and buyers also weigh condition, leases and market data.
How much value does $1,000 a month in savings add?
A $1,000 monthly saving is $12,000 a year of NOI. At a 6.25% cap rate that supports about $192,000 of value; at 7% about $171,000. The saving has to recur and be carried by the owner to count fully.
Do one-time refunds increase NOI?
Not going forward. A refund improves cash in the period it is received, but only recurring reductions in operating expenses change ongoing NOI and value.