TRREB listings on WordPress

Putting TRREB listings on a WordPress site is an integration project with three distinct layers: paperwork (a data-licence agreement through PropTx, with your broker’s sign-off), plumbing (a RESO Web API consumer that can back-fill and then continuously sync a very large feed), and operations (media mirroring, freshness monitoring, and the discipline to notice silent failures). Tutorials cover the first layer and wave at the second. We are an approved TRREB data vendor running this feed in production — around 121,000 active listings as of July 2026 — so this page describes all three layers as they actually are, complete enough to execute without us.

The paperwork: PropTx agreements and approval

TRREB’s data access runs through PropTx. You (with your brokerage — the broker of record signs) apply for the feed class you need: IDX for active listings on a public site, VOW if sold and off-market data is the point, each with its own display terms. Expect the process to take weeks, involve real review, and end with credentials scoped to what you asked for. Two practical notes from having done it: the agreement’s display and image-handling terms are the spec your build will be audited against, so read them as engineering requirements rather than legalese; and approval is per consumer, so the plugin vendor or developer who operates your feed is part of the application, not a detail you swap later. The step-by-step answer is in how to get TRREB listings on your website; the sold-data variant is getting TRREB sold data.

The plumbing: what the RESO Web API asks of you

TRREB’s feed speaks RESO Web API — OData queries over a replication endpoint. It is a good, modern interface, and it does not care whether the consumer is a platform or a WordPress importer; the work is identical. First comes the backfill: paging through the full active inventory — six figures of listings, each with rooms, open houses, and a media list — into your database. On shared WordPress hosting this is where projects meet reality: the import saturates the box or times out, so plan on real hosting and batched, resumable imports. Then the delta loop: polling on modification timestamps at a cadence you choose, forever. We sync every 15 minutes in production; a nightly WordPress cron leaves your site up to a day behind on price changes and terminations, which in Toronto’s market is visible to anyone comparing you against the portals. Respect the feed’s paging and rate conventions — bulk pulls are quota-limited, and a polite consumer with incremental queries never needs to fight them.

The part everyone skips: photos

Media is the majority of the engineering. Listing photos arrive as a separate resource, they change independently of listings, and the terms you signed govern how they may be served — production sites mirror images to their own storage and CDN rather than hotlinking board infrastructure, which means an object store, a re-encoding pipeline, and cleanup when listings die. The scale surprises people: photo counts run to dozens per listing, and our own mirror manages tens of millions of image objects for this one board. WordPress’s media library was not designed as that mirror. Plugins in the RESO lineage vary widely here — local storage, remote caching, or naive hotlinking — and this is the single sharpest question to ask any vendor, because it is the difference between a compliant site and a takedown letter.

The operations layer: staying fresh, noticing failure

A synced site fails quietly: the cron stops, a credential expires, the board changes a field, and the site keeps serving yesterday. Production TRREB consumers run monitoring on checkpoint age and import volume, alert when the pipeline stalls, and gate half-loaded listings out of search rather than showing a card with no photos. If you run this on WordPress, budget for the same disciplines in whatever form you can: a freshness stamp you actually check, an alert when imports miss a window, and a weekly eyeball of listing counts against TRREB IDX reality. The diagnostic habit matters more than the stack.

The honest close: every step above is doable, many WordPress shops do a serviceable job of the first two layers, and the DDF route exists when lighter data is acceptable. What you are deciding is who operates a data pipeline for the life of your site — you, a vendor you hire, or a platform whose whole product is that pipeline. We build the third option and say so plainly; this page is the checklist for pricing the other two.