Rent Roll Analysis
A rent roll from a Naperville office park and a rent roll from a Decatur retail strip can both look clean on the surface and still hide very different risk. Reading them the same way is how exchange buyers end up disappointed six months after closing, and it is a mistake we see repeated by investors moving into Illinois for the first time.
Starting With What the Numbers Actually Show
We separate in-place rent from what a unit or suite would achieve if re-leased today, because a rent roll padded with a few long-term below-market tenants can make a property look stronger than its real cash flow supports. This matters most in older Chicagoland multifamily buildings where rent control conversations have made some owners slow to push renewals to market, leaving a gap between in-place income and true market rent that a buyer needs to know about before pricing the deal.
Lease Structure Differences Across Asset Types
Industrial rent rolls in the Joliet and Elwood intermodal corridor typically carry NNN structures with clean expense pass-throughs, while retail rent rolls, especially in older downstate strip centers around Peoria or Rockford, more often mix NNN, modified gross, and flat-rate leases on the same rent roll. Multifamily rent rolls need a different read entirely, focused on renewal rate, concession history, and delinquency trend rather than lease structure, since there usually is no lease structure variation to speak of.
Fields We Check Line by Line
- lease start and expiration dates against the exchange holding period
- current rent versus last renewal or market comparable
- expense reimbursement method and any caps or exclusions
- security deposit or letter of credit amount held
- renewal options and any early termination rights
- tenant-by-tenant delinquency history
Cross-Checking Against Illinois Tax and Expense Trends
Because Cook County property taxes can move meaningfully at reassessment, we test the rent roll's expense reimbursement structure against a higher post-reassessment tax scenario rather than relying only on the trailing bill. A rent roll that looks fully NNN on paper can still leave the owner exposed if the lease has a base-year expense stop rather than a true pass-through, and that distinction rarely shows up in a broker's summary sheet.
Reading Rent Rolls Across a Statewide Portfolio
Investors comparing a Cook County apartment building against a downstate industrial property or a collar-county retail center often try to line the two rent rolls up side by side, but the categories worth comparing are different for each asset type. A Chicagoland multifamily rent roll should be judged on renewal rate and rent growth trend, while a Joliet-corridor industrial rent roll should be judged on remaining lease term and tenant credit, and forcing both into the same scorecard tends to produce a misleading comparison.
Turning the Analysis Into a Decision
The output is a simple comparison: what the property earns today, what it could reasonably earn after normal turnover, and where the biggest single risk sits on the rent roll, so the investor is identifying the property with full information rather than a broker's marketing summary. We put that comparison in writing before any identification deadline, not after, so there is a clear record of what was known when the decision was made.
Common 1031 Exchange Questions
Why does in-place rent versus market rent matter for a 1031 replacement decision?
Because a property priced off in-place rent that is well below market may look like a bargain but actually requires successful re-leasing to hit the projected return. Understanding that gap before identification prevents a mismatch between expectation and reality once the new owner takes over.
How does Cook County property tax reassessment affect rent roll analysis?
If a lease has a base-year expense stop rather than a full NNN pass-through, a post-reassessment tax increase can fall on the owner rather than the tenant. We check this specifically for Cook County properties given the triennial reassessment cycle and the way certain lease forms handle a base year.
Do industrial and retail rent rolls need different review methods?
Yes. Industrial rent rolls in corridors like Joliet and Elwood are typically cleaner NNN structures, while retail rent rolls, especially in older downstate centers, often mix lease types that each need separate expense and renewal analysis rather than one blanket assumption.
What is the biggest red flag in a multifamily rent roll?
A rising delinquency trend combined with concession use to maintain occupancy, since that combination often signals softening demand that a simple occupancy percentage will not show on its own. We look at that pairing across at least a full trailing year.
Should rent roll analysis happen before or after a property is identified?
Ideally before, so the identification list reflects properties that have already passed a basic income and expense screen. If timing is tight, it should happen immediately after identification and well before the 45-day window closes.
Can the same rent roll checklist be used for a Chicagoland property and a downstate property?
The checklist categories stay the same, but the weight given to each category should shift. A downstate rent roll deserves more scrutiny on tenant concentration and local employment trends, while a Cook County rent roll deserves more scrutiny on tax trajectory and regulatory notice requirements, since those pressures differ enough to change which line items matter most.
How far back should trailing rent roll data go for a reliable read?
We generally ask for at least twenty-four months rather than only the most recent snapshot, because a single month can be skewed by a large move-out, a rent concession promotion, or a seasonal dip that does not reflect the property's typical performance across a full cycle.
