By the time Zillow marks a zip code hot, prices have already moved. The signals that predicted the appreciation were sitting in public databases 18 months earlier — permit filings, business formation, zoning activity. Harbinger scores it before the comp data catches up.
| # | Neighborhood | Score |
|---|---|---|
| 1 | Financial District/South Beach | |
| 2 | Mission | |
| 3 | Tenderloin | |
| 4 | Sunset/Parkside | |
| 5 | Castro/Upper Market |
Every neighborhood ranked by a composite of permit activity and net business formation. Updated weekly from city open data APIs. No smoothing. No lag.
Harbinger pulls directly from city open data APIs — no aggregators, no lag. Each neighborhood receives a weighted composite score updated weekly.
Building permits filed with city planning departments, weighted by type. New construction signals long-term conviction. Alterations signal active investment. Demolitions signal repositioning.
Net new business license registrations over a 90-day rolling window. New businesses precede foot traffic, which precedes residential demand. The Tenderloin's high formation score is a textbook example.
These signals appear in public databases 12–24 months before appreciation shows up in comparable sales. Zillow marks a market hot after it's done happening. Harbinger scores it before entry points reprice.
One good acquisition decision informed by Harbinger data is worth multiples of the subscription. Price accordingly.
For individual investors and analysts tracking 1–3 markets.
For funds and REITs operating across multiple markets.
For institutional investors requiring custom data infrastructure.
Harbinger is currently in early access. We'll follow up within one business day with your API key and a city-specific sample report.