San Diego rents declined following surge in supply

Supply, Demand, and Rents

• Many commenters treat San Diego as a clean example of “more housing → lower rents,” pushing back against beliefs that new (especially “luxury”) units can’t reduce prices.
• Others stress nuance: more supply usually helps, but is not a “silver bullet” and can be outweighed by demand shocks or other factors.
• Some highlight “supply skepticism”: the view that supply alone cannot fix affordability without targeted policy for lower-income households.

San Diego-Specific Factors & ADUs

• Several point out the distinctive role of accessory dwelling units (ADUs) enabled by California law and especially permissive local rules.
• ADUs are framed as homeowner-financed, non‑subsidized, and outside large landlord control, adding real competition and tax base while increasing unit counts on existing lots.
• There is skepticism over whether the article’s “surge in supply” is truly new construction vs. just a surge in listings, and whether demand has also softened (e.g., biotech slowdown, federal contractor departures, population leakage).

Zoning, NIMBYism, and Politics

• Strong consensus that restrictive local zoning and entrenched homeowners are major barriers to new housing.
• State-level upzoning (e.g., California, Minnesota) is seen as an effective way to bypass NIMBY-dominated local politics.
• Some renters and self-described progressives are criticized for opposing new housing while using affordability, environmental, or traffic arguments tactically.

Induced Demand, Density, and Urban Form

• Debate over whether new housing simply attracts more residents, returning prices to a “desirability equilibrium.”
• Pro‑density voices argue US cities are far below densities of Paris, Vienna, Tokyo, etc., and could add large numbers of people while staying livable, especially with better transit.
• Critics note that many dense cities still have housing crises; density alone doesn’t guarantee affordability.

Market Power, Rent-Fixing, and Developers

• Multiple comments claim rent levels are propped up by practices like algorithmic pricing, “warehousing” vacant units, and lease concessions that mask real price drops.
• Large, subsidized developers are accused of replacing existing affordable stock with high-end units and capturing public incentives.

Public and Social Housing Debates

• Some advocate large-scale public or social housing (often mixed-income) and public land ownership, citing historical and international models.
• Others warn public projects are frequently far more expensive and politically hard to deliver; given urgency, many prioritize any policy that rapidly increases unit counts.