The fifth article in the Self Storage Basics series. It follows How Self Storage Is Valued and uses the terms defined in the terminology article.
Patrick Wood, JBW Commercial | September 2, 2026
The most important document in the deal
Everything a buyer needs to know about a self storage facility’s income is in the rent roll. The operating statement tells you what the facility earned last year. The rent roll tells you why, tenant by tenant, and whether it will keep earning it. It is the document that turns a seller’s NOI into a buyer’s NOI, and the one most first-time buyers spend the least time reading.
This article covers what a rent roll contains, the six things to check first, how to read a unit mix, and what a proper verification looks like before the money goes hard.
What a rent roll actually is
A rent roll is a unit-by-unit listing exported from the facility’s management software. For every unit it shows the unit number, size and type, whether it is occupied, the tenant’s move-in date, the rate the tenant is paying, the street rate for that unit size, any discount or promotion applied, the balance owing, and often the tenant’s insurance status and whether the unit is on autopay.
A good rent roll is a single export on a single date with every unit on it, including vacant ones, parking stalls and any units held out of service. A summary page with occupancy and average rent is not a rent roll. Ask for the raw export.
Six things to check first
Vacancy by unit size. Overall occupancy hides where the vacancy actually sits. A facility at 90 per cent physical occupancy might have every 10 by 10 full and half its 10 by 30s empty, which tells you the large units are overpriced or the market does not want them. Sort by size and calculate occupancy for each.
The gap between in-place and street rate. For each size, compare the average rate existing tenants pay with the rate a new tenant would pay today. A wide gap where in-place is below street means revenue upside for a buyer who manages rates, and it is what professional operators pay for. A gap in the other direction, where in-place rates sit above street, means the seller has been raising existing tenants faster than the market and those tenants are at risk of leaving.
Concessions and discounts. Count the tenants on a promotional rate and note when each promotion expires. A facility that leased 60 units in the past four months on a first-month-free offer has a rent roll that looks full but has not yet proven that those tenants will stay at full rate. Heavy recent move-in activity with discounts is the most common way a facility is dressed for sale.
Delinquency. Sort by balance owing. Tenants more than 30 days behind are at risk; tenants more than 60 or 90 days behind are usually headed to lien and auction, and their units should be treated as vacant for underwriting. Add the delinquent rent back out of revenue. A delinquency rate above five per cent of units is a management problem, not a market problem.
Length of stay. Look at the distribution of move-in dates. A healthy facility has a long tail of tenants who have been in place for years, which is the base that makes the income stable. A rent roll where most tenants moved in within the past year is either a facility in lease-up or one with high churn, and the two look the same on a summary page.
Related and non-standard tenancies. Look for units rented to the owner, the manager, family members or the owner’s other businesses, often at zero or nominal rent, and for units listed as rented but used for storage of the facility’s own equipment. Those units come out of the income and go back into vacancy.
Reading the unit mix
Unit mix is the schedule of unit sizes and types in the facility. It matters more than unit count because it determines the average rent per square foot the facility can earn and how well it fits the trade area.
Small units earn more per square foot and less per unit. A 5 by 5 locker might rent for $60 a month, which is $28.80 per square foot a year; a 10 by 20 might rent for $260, or $15.60 per square foot. A facility heavy in small units will show a high average rate per square foot and a low average rent per unit, and the reverse for a facility of drive-up bays. Neither is better in the abstract. The question is whether the mix matches demand.
Signs that the mix is wrong: one size range persistently full with a waiting list while another sits vacant, a street rate on the vacant sizes that has been cut repeatedly, and tenants renting two small units instead of one large one because the large ones are gone. A facility with a mismatched mix is an opportunity if the building allows reconfiguration, which is easy in a single-storey drive-up facility with removable partitions and difficult in a multi-storey building with fixed corridors.
Climate control changes the arithmetic. Climate controlled units command a premium, often 20 to 40 per cent over standard units of the same size in Canadian markets, and cost more to operate. A rent roll should show the two categories separately so the premium can be confirmed.
Parking and vehicle stalls appear on the rent roll as units with their own rent, and that income is real. Their area is not part of rentable square footage, and stall counts flex as operators add or remove them, so report stalls rented rather than a parking occupancy percentage.
Reconciling the rent roll to the money
A rent roll on its own proves nothing. The verification is tying it to the other records.
Rent roll to bank deposits. Total the rent roll’s monthly rent and compare it with the deposits in the operating account over the same period, adjusted for timing. A persistent gap between what the rent roll says is billed and what actually lands in the bank is either delinquency the rent roll understates or units the rent roll overstates.
Rent roll to operating statement. The trailing twelve months of revenue on the operating statement should be explainable by the rent roll’s occupancy and rates over that period. If the T-12 shows revenue the rent roll cannot support, ask where it came from.
Rent roll to the building. Walk the facility with the rent roll in hand. Count the units. Confirm that units listed as occupied have a tenant’s lock on them and units listed as vacant are empty and rentable. Look for the overlock that indicates delinquency and for units listed as vacant that are being used for storage of the facility’s own materials. A physical count that does not match the rent roll is the single most common finding in a storage audit, and it is often innocent, but it changes the numbers.
Rent roll to tenant agreements. Sample a set of tenants and confirm a signed agreement exists for each, with a rate that matches the rent roll and a term that is in fact month to month.
When to bring in a third party
A buyer can do most of this personally on a small facility. On a larger deal, a portfolio, or any transaction where the lender wants independent confirmation, a transaction audit does the same work with a report the lender and the buyer’s counsel can rely on. JBW Commercial offers transaction audit services for Canadian self storage deals, covering the site inspection, physical unit count and rent roll verification described above, for buyers, sellers and lenders. A seller who commissions one before listing removes the most common reason a deal gets repriced in week three, which is exactly the point made in this fall’s listing wave analysis.
What a first-time buyer should take from this
The rent roll is where the income comes from and where the risk hides. Read it by unit size, not in total. Compare in-place rates with street rates, count the discounts and the delinquents, and look at how long tenants have been in place. Then tie it to the bank deposits and walk the building with it in hand. A facility whose rent roll survives that process is a facility whose NOI you can underwrite.
The next article steps back from operating facilities to the three ways into the sector: developing a new facility, converting an existing building, or buying an operating one, with the cost, timeline and risk of each.
This article is general educational commentary and is not investment, legal, accounting or tax advice. Patrick Wood is a commercial real estate professional and not a financial advisor or accountant. Readers should obtain independent advice before acting on any information here.