How it works
Public records, read the way a buyer needs them read.
The information already exists — permit filings, code adoption dates, municipal records. It's just scattered, technical, and not written for you. Tarn pulls it together and translates it into what it means for the house you're looking at.
Enter an address
Tarn checks it against permit records for that city — building, electrical, plumbing, mechanical, and fire, where available.
See what's on record
Every permit found, with dates and type — a factual history of work that was done and inspected, not just claimed.
See what the code era implies
Systems installed before a given code adoption date get flagged as considerations, not alarms — knob-and-tube wiring, galvanized plumbing, and similar code-era risks.
Tell us what's missing
Tarn is new and free while it's being built. Every report ends with a question: what wasn't useful here? That's what shapes what we build next.