“Could we try it without slides?” someone asked, meaning PowerPoint. The forest answered first—wind through pines, that hush that says think before you talk. Good omen. The Sappi TREEHOUSE isn’t a generic venue; it’s a perch. A small one, on purpose. Fifteen people max, timber under palm, daylight everywhere, and a view that keeps tugging attention outdoors. Useful, that.

Backstory—condensed: Sappi had an idea with Proximity BBDO; the Flemish Forest and Nature Agency and the city of Hechtel-Eksel said yes; the four built a place (and an online platform) where sustainability stops being a slide deck and starts being a conversation with receipts. Industry, comms, public stewardship, local government—unlikely lunchmates who decided to share a table. It shows.

The room behaves like a facilitator who knows when to vanish. Warm wood, breathable space, tech if you need it, but also a kind of gentle pressure from the trees: get specific. It’s hard to greenwash when a robin is judging you from a branch. The brief is clear—events must fit Sappi TREEHOUSE ethos (circularity, real-world impact, not vibes). If that sounds strict, good. €400 per day (VAT excluded) keeps it accessible and still serious.

I like the scale. Fifteen means you can read the room, catch the eye-roll, adjust on the fly. You can sketch a loop economy on paper, argue about it, then take it outside and ask, “Okay, how would this work here?” The forest will not answer. But the quiet helps you hear yourselves better. And that’s half the work.

Online, Sappi TREEHOUSE platform stitches the day’s ideas to everything else: case studies from other sectors, pilot wins, the odd glorious failure (we learn there too). It’s part library, part switchboard. The goal isn’t a perfect manifesto; it’s the next measurable step. Small, boring even. (Those are the ones that stick.)

Details you’ll want: booking is day-based; the filter is real (bring a plan, not a buzzword salad); coffee tastes better when you park your phone. And if your team insists on a slide or two, fine—short deck, long walk. The forest is the best slide anyway.

Will a single session fix a supply chain? No. But it can rewrite your next quarter’s questions, which is sneakily bigger. More useful. Bring your metrics, bring your skepticism, and—this is optional but recommended—bring shoes you don’t mind scuffing on a path between sessions.