How to Measure NOI in Manufactured Housing Communities
A client called me a few months ago, somewhat frustrated. He wanted to talk about a portfolio of about 800 lots across three parks in the Southeast. The portfolio looked fine on paper – rents were coming in, expenses seemed normal. But when his lender asked for a current NOI figure ahead of a refinance, his team spent three days pulling data out of Rent Manager and reconciling it in Excel before they could give an answer.
Three days. For a number that should be available in minutes.
The problem was that the P&L report wasn’t reflecting operating expenses accurately. Work on parking lot paving, a capital expense, was coded repairs and maintenance, an operating expense. There were other adjustments that also had to be made. And multiple revisions before the report was ready for the lender.
It was a chart of accounts setup problem. It was a training problem. Most importantly, leadership wasn’t using NOI to as an indicator of problems in the portfolio.
This article walks through what NOI actually means for a manufactured housing community, how to calculate it correctly, what benchmarks to hold yourself to, and why the number matters beyond just satisfying your lender.
What is NOI in manufactured housing?
Net Operating Income (NOI) is the money left over after you’ve paid all operating expenses – but before debt service, depreciation, and capital expenditures.
| NOI = Total Revenue − Operating Expenses (Excludes debt payments, CapEx, and depreciation) |
For a manufactured housing community, total revenue typically includes lot rent, home rent (if you own the homes), utility income, late fees, and any ancillary income like storage or pet fees. Operating expenses include property taxes, insurance, utilities, payroll, management fees, maintenance, and administrative costs.
What NOI does not include is your mortgage payment. That’s intentional. NOI is a measure of how well the property performs on its own – independent of how you financed it. Two operators can own identical parks with very different debt structures, but their NOI should be comparable.
Why does NOI matter more than net income?
Net income subtracts everything, including interest, depreciation, and taxes. Those numbers are real, but they’re heavily influenced by your financing decisions and accounting methods — not by how well you’re operating the property.
NOI strips that away. It tells you what the property itself is producing. That’s why lenders, investors, and buyers use it as the primary valuation metric. Cap rate — the most common valuation tool in real estate — is calculated directly from NOI.
| Cap Rate = NOI ÷ Property Value If your park produces $400,000 in NOI and comparable communities trade at a 6% cap rate, your implied value is roughly $6.7 million. Every dollar of NOI improvement moves that number. |
This is why operators who track NOI closely tend to make better decisions. They can see in real time how a rent increase, a maintenance cost spike, or a drop in occupancy changes the value of the asset — not just the monthly cash flow.
What is a good NOI margin for a manufactured housing park?
NOI margin is NOI expressed as a percentage of gross revenue. It tells you how efficiently the property converts revenue into profit.
For a well-run manufactured housing community, NOI margins typically fall in the range of 55% to 70%. That means for every dollar collected, 55 to 70 cents makes it to NOI after operating expenses are paid.
Parks on the lower end of that range (below 55%) are usually dealing with one or more of these issues:
- High expense ratios due to deferred maintenance catching up
- Significant utility costs that aren’t being billed back to residents
- Management fee structures that don’t scale well with the portfolio
- Older infrastructure requiring ongoing repairs
Parks above 70% are either operating very efficiently or have unusually low expenses for their market — which is worth understanding before assuming it’s sustainable.
A simpler way to look at this is the Operating Expense Ratio (OER): total operating expenses divided by total revenue. A healthy OER for an MH community is generally 30% to 45%. If your OER is creeping above 45%, you should be asking why.
The five KPIs every MH operator should track alongside NOI
NOI alone doesn’t tell you where the problems are. You need a short list of supporting metrics to give the number context.
| KPI | Definition | Benchmark / What to Watch |
| NOI | Revenue minus operating expenses | 55–70% margin; trending up month-over-month |
| Operating Expense Ratio | Total expenses ÷ total revenue | Target below 45%; investigate if above 50% |
| Revenue Per Occupied Lot | Total rental income ÷ occupied lots | Compare to your market rate; identify underpricing |
| Economic Occupancy | Actual income collected ÷ gross potential rent | Should exceed 90%; below 85% signals collection issues |
| Debt Service Coverage Ratio | NOI ÷ annual debt payments | Most lenders require 1.20x or higher; 1.30x is comfortable |
The one metric operators most frequently misread is economic occupancy. Physical occupancy tells you how many lots are filled. Economic occupancy tells you how much of the potential revenue is actually being collected — factoring in delinquency, concessions, and vacancies. A park can be 97% physically occupied and still have an economic occupancy below 85% if collections are a problem.
That gap is real money. On a 200-lot park charging $600 per lot, the difference between 95% economic occupancy and 85% is $144,000 per year in revenue — and almost all of that flows directly through to NOI.
The most common NOI mistakes MH operators make
These show up consistently across portfolios of all sizes:
Inconsistent expense categorization
If your team codes a roof repair as an operating expense one month and CapEx the next, your NOI comparisons become unreliable. Build a consistent chart of accounts and enforce it. This sounds basic, but it’s one of the top reasons operators can’t make apples-to-apples comparisons across their properties.
Ignoring utility recapture
If you’re paying for water, sewer, or trash and not billing it back to residents, that cost is reducing your NOI without showing up as a visible problem. Track your utility recapture rate — the percentage of utility expenses actually collected from residents. Many operators are surprised how much revenue they’re leaving on the table here.
Not separating CapEx from operating expenses
Capital expenditures — roof replacements, infrastructure upgrades, home purchases — should never run through your operating expense line. They distort NOI and make it impossible to benchmark performance accurately. Keep a clean separation and track CapEx separately.
Looking at NOI annually instead of monthly
Annual NOI is fine for reporting. It’s not fine for operating. If your NOI dropped in March because maintenance spiked, you want to know that in April — not in January when you’re doing your year-end review. Monthly tracking lets you catch problems while they’re still manageable.
How to improve NOI in a manufactured housing community
There are only two levers: increase revenue or reduce expenses. But within each, the specific tactics matter.
On the revenue side, the highest-impact actions are usually:
- Closing the gap between current rents and market rates — even a $25 per month increase on 200 lots is $60,000 per year in additional revenue
- Improving economic occupancy by reducing delinquency and tightening collections
- Capturing utility recapture income that’s currently being absorbed as an operating expense
- Reducing vacancy days by tracking unit turn time and setting targets
On the expense side:
- Benchmark your expense ratios against similar properties in your portfolio — outliers almost always have an identifiable cause
- Audit your management fees relative to what you’re getting for them
- Reduce reactive maintenance by investing in preventative upkeep — emergency repairs consistently cost more than scheduled ones
- Review vendor contracts annually — property management tends to accumulate recurring costs that were never renegotiated
The operators I’ve seen move the needle fastest are the ones who pick one lever at a time, measure the impact, and then move to the next. Trying to fix everything simultaneously usually means fixing nothing.
What should NOI reporting look like?
At a minimum, you should be producing a monthly NOI report that shows:
- Actual NOI versus budget
- NOI trend over the trailing 12 months
- NOI broken down by property (not just rolled up at the portfolio level)
- Operating Expense Ratio by property
- Year-over-year comparison
If you’re reporting to investors or lenders, they’ll also want to see DSCR alongside NOI, and ideally a comparison of actual performance against the pro forma from acquisition. Unexplained variances from underwriting assumptions are a red flag in any investor relationship. Getting ahead of them with clear data is how you build credibility over time.
The goal isn’t a perfect number. It’s a consistent, reliable number that you trust — and that your investors can trust too.
If your team is still pulling income and expense numbers from a property management report into Excel every month, the reporting process itself is costing you time that should be going toward managing the portfolio. At RentViewer, we build data warehouses that connect directly to Yardi, AppFolio, Entrata, and Rent Manager — so your NOI and supporting KPIs are always current, always consistent, and always ready when you need them.
How long does it take your team to produce a current NOI figure right now? If the answer isn’t “a few minutes,” that’s worth thinking about.
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