In Ontario, you can't legally build or sell a new home unless you're licensed by the Home Construction Regulatory Authority (HCRA). Every licensed builder — and every expired, revoked or refused one — lives in a public database called the Ontario Builder Directory (OBD). That's a ready-made list of construction businesses, with contact info, licence status, and how many homes each has built.
The catch: there's no "download all" button and no documented API. The directory is a search box. This post shows how to pull that data programmatically in 2026 — the real endpoint behind the search, the fields you get, and a hosted option you can call from code or an AI agent.
Why builder-directory data is useful
An HCRA licence record is a strong commercial signal:
Contact info — most builders list a phone number, many an email and website.
