Why permit data beats bought leads

July 12, 2026

If you've bought leads from a shared marketplace, you know the drill: a homeowner fills out a form, five contractors get billed for the same inquiry, and whoever calls within ninety seconds wins a conversation — not a job.

Permit data works differently, and the difference compounds.

A permit is a commitment, not a curiosity

By the time someone files a building permit application, they've usually engaged a designer, scoped a budget, and committed to a timeline. That's the opposite of the "just wondering what a kitchen costs" inquiry a lead marketplace resells. A permit application is the strongest public signal that money is about to move at a specific address.

You see the whole market, not the slice a platform sells you

Lead platforms show you the demand that happens to walk through their door. The permit feed is the entire city: every new construction project, every addition, every major remodel, every demolition, every land-use application — including the early design-review filings that surface projects months before ground breaks.

Nobody else is racing you to the phone

A shared lead has a stopwatch on it. A permit lead has a mailbox. Reaching a property owner by mail at the address the county has on file is slower, calmer, and dramatically less crowded — most contractors never do it because assembling owner mailing addresses by hand is tedious. That tedium is the moat.

The math

A shared lead runs $15–$100, split five ways, before you know if it's real. A month of every permit in Seattle — with the owner's mailing address attached — costs less than two of those leads. If one mailer a quarter turns into a job, the channel pays for itself for years.

Do it responsibly

Public records are public, but outreach still has rules and norms. Identify yourself honestly, honor do-not-contact requests, and keep your outreach professional — we wrote up our guidance in Responsible Outreach.

PermitWire delivers every new Seattle building and land-use permit — owner mailing address included — every Monday. Get a free sample list.