IRS SOI migration for 2022–2023 measured 8,569 tax-return households moving from San Francisco to Los Angeles. The corridor accounted for 8.67% of San Francisco’s outbound return households. These are tax-return households; they do not identify renters, every mover, or future demand. The evidence establishes a defined origin-to-destination flow, but it cannot show how much Los Angeles rental absorption came from former San Francisco residents.
For household housing costs, Zillow ZORI and ZHVI observations dated June 30, 2026 place Los Angeles asking rent at $2,927, versus $3,301 in San Francisco—a monthly difference of $374 and an annual difference of $4,488. Los Angeles home value was $968,028, compared with $1,142,320 in San Francisco, a difference of $174,292. Moving south therefore lowers the market-level rent and purchase-value benchmarks, but lower Los Angeles household income makes the relative affordability picture less favorable than those dollar gaps alone suggest.
For rental-property underwriting, the simple gross-yield screen is 3.63% in Los Angeles, against 3.47% in San Francisco. That directional edge is not a return forecast: gross yield omits vacancy, concessions, operating costs, insurance, taxes, financing and capital work. It also sits beside weaker Los Angeles income and migration signals and more permit activity. The next underwriting question is whether a specific Los Angeles submarket and unit can turn achievable rent—not a market asking-rent index or HUD standard—into net operating income after realistic vacancy and expenses.

