I see this all the time in Los Angeles apartment offerings: today's rents on one side, “market rents” on the other, and a beautiful spread between them. It catches my eye, too. But it isn't a check you can deposit.
The question is how you get from one column to the other—and what you spend along the way.
I start with the rent roll, one apartment at a time. Which units are vacant? What condition are they in? What do the leases and applicable rules allow? If the occupied tenants stay for years, does the investment still work? If it needs every unit to turn over quickly, let's say that out loud before calling it upside.
Then price the work. Paint and flooring are the easy lines. The harder ones are systems, permits where needed, months without rent, financing carry and whatever turns up when you open a wall. Some repairs protect the building without raising rent by a dollar. They still use your capital.
And ask who is going to do it. A well-capitalized operator may be comfortable with a long, uneven improvement plan. Another buyer may need dependable income now. A long-time owner might renovate gradually, but should still ask whether the work is the best use of the equity already in the property.
I am not saying the rent gap isn't real. I am saying the path matters more than the headline number. I would rather show you an achievable smaller gain than sell you a larger one that only works in a spreadsheet.
If you are looking at an apartment building—or have owned one for decades—send me the rent roll and tell me what you want the property to do for you. We can put the income in place, the work ahead and your return on equity side by side.
General investment discussion, not a property-specific projection or legal, tax or accounting advice. Verify rent regulation, tenancy, property condition and all offering facts before relying on an underwriting scenario. Confirm any tax or legal advice with a qualified specialist.