New Jersey single-family median home prices fall year-over-year before December 2027.

Question

Six frontier AI models put this at 38% by 29 Sept 2029. Full reasoning from every model.

WillHappen.ai · Accepted Answer

38% — the median of 6 frontier models, resolving by 2029-09-29.

Answer

Gemini (Google): 37% — Persistent supply deficits in the NYC metro make sustained nominal price drops rare, requiring a recession to post a YoY monthly drop. NJ Realtors monthly median prices have risen YoY almost uninterrupted since 2020 despite 7%+ mortgage rates due to record-low inventory. A single month of negative YoY change requires only mild seasonal volatility or a regional spike in higher-inventory submarkets. A US recession driving national unemployment above 5.5% before late 2027 is the primary catalyst that would push probability over 60%.

Answer

Claude (Anthropic): 32% — Turns on whether elevated mortgage rates and stretched affordability finally crack NJ's tight-supply price floor before Dec 2027. NJ median prices have risen almost every year since 2012 despite rate hikes, showing strong resilience from chronic undersupply. A YoY decline needs either a demand shock (recession, rate spike) or a supply surge, neither of which is currently visible in NJ data. National home price growth has already flattened in 2024-2025, and any broader correction would likely spill into NJ's high-cost, rate-sensitive suburbs.

Answer

GPT (OpenAI): 73% — A statewide recession or supply release before 2027 is the key trigger for a reported annual median-price decline. New Jersey Realtors must publish monthly or annual single-family data showing a lower median than the matching 2026 period. Over a three-year window, even supply-constrained housing markets commonly see at least one year-over-year median dip amid rate or job shocks. Persistent inventory scarcity is the main downside; a sharp rise in listings or unemployment would materially raise the odds.

Answer

Grok (xAI): 28% — NJ Realtors monthly medians must print one YoY drop by Nov 2027 data. NJ Realtors must report a single-family median below the year-ago month in any release covering Oct 2026–Nov 2027. US YoY price declines cluster in recessions; NJ’s chronic undersupply puts it well below that ~25% historical rate. A 2027 recession or inventory surge would reverse the call; otherwise tight listings keep prices resilient.

Answer

DeepSeek (DeepSeek): 38% — Needs a monthly NJ Realtors print below its year-earlier level by Nov 2027; supply is the only lever that moves that fast. NJ Realtors publishes monthly median sale prices; a single YoY negative print before Dec 2027 satisfies it, so the bar is one month, not a sustained trend. Mortgage rates near 6% plus record-low listings have kept NJ medians rising; the 2022-23 dip was brief and shallow, so the base rate for a full YoY decline is modest. A recession or a 7%+ rate spike forcing sellers off the sidelines would be the development that flips this; absent that, inventory stays tight through 2027.

Answer

Qwen (Alibaba): 38% — NJ prices would need a macro shock or sustained rate spike to break the supply-constraint floor before Dec 2027. NJ Realtors data shows median prices have risen YoY nearly every month since 2012; a decline requires a genuine demand shock, not just slowing growth. Active listings remain historically low (~1.5-2 months supply), so even with elevated mortgage rates, sellers' lock-in effect keeps inventory suppressed. A recession hitting before mid-2027 or a sharp rate spike above 8% would push this above 55; absent that, the supply floor holds.

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