Apartment Building Investing

Evaluating an apartment building for acquisition requires a deeper level of diligence than a single tenant property, since income depends on many individual leases rather than one lease agreement. A rent roll review confirms current rents, lease expiration dates, and any concessions in place across every unit, while a trailing twelve month, or T12, financial statement shows actual historical income and expenses rather than the pro forma projections sometimes used in marketing materials. Comparing the rent roll to current market rents for comparable units often reveals upside potential if existing rents are below market, though California's regulatory framework limits how quickly that upside can be captured.

Unit mix, meaning the number of studio, one bedroom, two bedroom, and larger units, affects both tenant demand and turnover patterns, since different unit types appeal to different renter profiles with different average tenancy lengths. Deferred maintenance is another key diligence item, since apartment buildings with aging mechanical systems, roofing, or plumbing can require significant capital expenditure shortly after acquisition, an expense that should be reflected in the purchase price or budgeted for immediately after closing.

Orange County apartment buildings, particularly in cities without additional local rent control layered on top of the statewide AB 1482 cap, allow rent resets to market rate upon voluntary tenant turnover under the Costa-Hawkins Rental Housing Act, which preserves some ability to capture market rent growth over time even while annual increases on occupied units remain capped. Investors acquiring an apartment building as 1031 exchange replacement property should request the rent roll, T12, and any capital expenditure history well before the 45 day identification deadline, since these documents are essential to confirming the property's actual financial performance before committing to the exchange.