Thomas Lucas Most “eco-friendly” hostels in Medellín are lying to you. I’m not being dramatic. I spent three weeks in February 2026 bouncing between seven different hostels that all claimed to be sustainable. Two of them had recycling bins that went straight into the same trash bag at night. One had a “solar-powered” sign but the panels were decorative — I checked the wiring. This isn’t a hit piece. It’s a field report. If you’re a solo traveler who actually cares where your money goes, here’s what I found.
Medellín has a genuine sustainability movement happening, but it’s buried under a pile of marketing. The city’s water comes from nearby páramo ecosystems, and a handful of hostel owners actually understand that. Others just know backpackers will pay 20,000 COP extra for a bamboo toothbrush in the welcome kit. Before I name names, let me explain how I judged these places — because “eco-friendly” means nothing without a definition.
What Actually Makes a Medellín Hostel Eco-Friendly?
Here’s the thing nobody tells you: a hostel can have a green logo and still be an environmental disaster. The real test isn’t whether they have a recycling poster. It’s whether their daily operations reduce waste, energy, and water use. Medellín’s climate helps — you rarely need heating or AC — but water is a serious issue in Colombia. The city has experienced water rationing in recent years, and any hostel that doesn’t address this is greenwashing.
Three Questions to Ask Before Booking
I call every hostel before booking now. It takes five minutes and saves me from writing angry reviews later. Ask these questions:
- “Where does your recycling actually go?” If they hesitate or say “the city handles it,” that’s a red flag. Medellín’s recycling infrastructure is inconsistent. Good hostels have a specific collector or partnership.
- “Do you have a greywater or rainwater system?” This matters more than solar panels in Medellín. Water is the scarce resource, not electricity.
- “What percentage of your food is sourced locally?” If they serve imported packaged food while claiming sustainability, walk away.
I’ve stayed at places that passed all three questions and places that failed all three. The difference is obvious when you’re there. You notice the compost bin in the kitchen. You notice whether the showers have low-flow heads. You notice whether the staff actually separates waste or just talks about it.
The Greenwashing Trap
Here’s what greenwashing looks like in practice: a hostel that puts a “save water” sign in the bathroom but installs a high-pressure rain shower that uses 12 liters per minute. A hostel that proudly displays a recycling bin in the common area but dumps it in the regular trash at 2am. A hostel that sells “eco-friendly” plastic water bottles. Plastic is plastic. I watched one receptionist hand out single-use plastic cups at a “zero waste” happy hour. This stuff is everywhere.
The worst offender I found was a place in El Poblado that advertised “solar-powered hot water” — the panels were installed but disconnected. When I asked the owner about it, he said the system “had issues” and they’d switched to gas. But the marketing stayed up. That’s not a mistake. That’s a choice.
The Only Three Hostels Worth Your Money
After three weeks and seven hostels, I’d only recommend three. These aren’t the most famous hostels in Medellín. They’re not the ones with the biggest Instagram presence. They’re the ones that actually do what they say. I’m listing them in order of preference for solo travelers specifically.
1. Casa Solar Hostel (Laureles) — Best Overall for Solo Travelers
This is the one I kept coming back to. It’s a small place — maybe 20 beds — in Laureles, which is the neighborhood you actually want to be in as a solo traveler. El Poblado is where the party tourists go. Laureles is where the city lives. Casa Solar has a real solar water heating system that works. I checked. The owner, a Colombian woman named Diana, showed me the maintenance logs without me asking.
What makes it great for solo travelers isn’t just the sustainability. It’s the layout. The common kitchen is central, and meals happen together. Not forced — just natural. I met more people in three days here than I did in a week at a bigger hostel in El Poblado. The dorm beds have privacy curtains and individual reading lights, which matters when you’re sharing with strangers. They charge 85,000 COP per night for a dorm bed in February 2026. That’s mid-range for Medellín, but the value is there.
The sustainability practices are real: a greywater system that waters the rooftop garden, bulk soap dispensers instead of individual plastic bottles, and a strict no-single-use-plastic policy in the kitchen. They compost food waste and use it in the garden. The garden grows herbs and some vegetables used in the free breakfast. The breakfast is included and it’s actually good — fresh fruit, eggs from a local farm, and real coffee from a cooperative in Antioquia.
2. La Casa Verde (Laureles) — Best Budget Eco Option
La Casa Verde is smaller and cheaper, at 60,000 COP per night for a dorm bed. It’s run by a Colombian-Swiss couple who bought the building in 2019 and renovated it with reclaimed materials. The furniture is made from pallets and old doors. It’s not fancy, but it’s solid, and the place has a calm energy that’s rare in budget hostels.
The eco credentials are legit but different from Casa Solar. La Casa Verde focuses on waste reduction. They have a strict sorting system with separate bins for organic, plastic, paper, glass, and metal. They work with a local recycling cooperative that actually picks up the materials. The kitchen has a “free shelf” where travelers leave food they’re not going to finish — I’ve never seen that work anywhere else, but it works here. The showers are low-flow and the toilets are dual-flush. The owners track their water usage monthly and have it posted in the common area. That’s accountability.
The tradeoff: it’s quieter. If you want a party hostel, this isn’t it. But if you’re a solo traveler who wants to actually sleep and maybe have a conversation with someone interesting, La Casa Verde delivers. The owners host a weekly dinner where everyone cooks together using local ingredients. It costs 15,000 COP and it’s the best deal in the city.
3. BioHostel Medellín (El Poblado) — Best for Digital Nomads
BioHostel is in El Poblado, which I normally avoid, but I’m including it because it’s the only genuinely eco-friendly option in that neighborhood. If you need to be near coworking spaces or the nightlife, this is your choice. It’s newer — opened in 2026 — and it’s built into a renovated building with proper insulation and energy-efficient everything. The dorm beds are 95,000 COP, which is expensive for Medellín but cheap for El Poblado.
The standout feature is the rooftop garden, which is larger than most hostel rooftops in the city. They grow vegetables, herbs, and even some fruit. The garden reduces the building’s heat load and provides food for the kitchen. The hostel also has a partnership with a local farm for the rest of its produce. They publish their sourcing on a board in the lobby, which I’ve never seen before. It lists every supplier and where they’re located.
The downside for solo travelers: it’s bigger and more anonymous. The common areas are nice but spread out, and it’s harder to meet people organically. The coworking space is excellent — fast wifi, proper desks, quiet hours — but that attracts a different crowd. If you’re working and want to be sustainable without sacrificing location, this is the pick. If you’re traveling to meet people, go to Laureles.
How to Spot a Fake Eco-Hostel in Five Minutes
I’ve developed a quick test. It’s not perfect, but it catches most greenwashers before you hand over your passport. Here’s what to look for when you walk in:
- Check the trash. If there’s one bin in the kitchen, it’s not eco-friendly. Real sustainable hostels have at least three bins, and they’re labeled clearly. If the labels are in English only, that’s a marketing prop. Locals should be able to read them too.
- Look at the bathroom products. Bulk dispensers = real. Individual plastic shampoo bottles = fake. This is the easiest tell and it’s almost never wrong.
- Ask about the water. Medellín has water issues. A hostel that doesn’t have a water conservation plan isn’t trying. Look for low-flow showerheads, dual-flush toilets, or signs of a greywater system.
- Check the breakfast. If the fruit is imported or the coffee is from a multinational brand, the sustainability claim is surface-level. Real eco-hostels source locally. It’s cheaper and fresher anyway.
- Look at the staff. Do they seem to care, or are they just doing a job? This sounds vague, but it’s the most reliable signal. At Casa Solar, the staff can tell you exactly where the recycling goes and who picks it up. At a greenwashing hostel, they’ll say “I think the city handles it.”
Here’s a comparison table of the three hostels I recommend, plus two I don’t, so you can see the difference:
| Hostel | Neighborhood | Dorm Price (COP) | Real Eco Practices | Greenwashing Flags | Best For |
|---|---|---|---|---|---|
| Casa Solar Hostel | Laureles | 85,000 | Working solar water, greywater garden, bulk soap, compost | None found | Solo travelers wanting community |
| La Casa Verde | Laureles | 60,000 | Recycling cooperative, free shelf, low-flow water, reclaimed furniture | None found | Budget travelers, quiet stays |
| BioHostel Medellín | El Poblado | 95,000 | Rooftop garden, local sourcing board, energy-efficient design | Higher price, less community | Digital nomads |
| “Green” Hostel A (unnamed) | El Poblado | 75,000 | Recycling bin in lobby | Disconnected solar panels, single-use cups, plastic bottles | Avoid |
| “Eco” Hostel B (unnamed) | Laureles | 70,000 | Save water signs | High-flow showers, no recycling, imported food | Avoid |
I’m not naming the bad ones because I don’t want to deal with angry messages. But you can spot them with the five-minute test. If a hostel fails two or more checks, book elsewhere. There are enough good options in Medellín that you don’t need to settle.
When You Shouldn’t Stay in an Eco-Hostel
Eco-hostels aren’t for everyone, and pretending otherwise is stupid. If you’re traveling with a group of four friends who want to party every night, book a regular hostel in El Poblado. You’ll have more fun, and you won’t be the loud group ruining the vibe at a quiet sustainable place. Casa Solar and La Casa Verde have quiet hours that they actually enforce. If that’s going to annoy you, go somewhere else.
If you’re on a very tight budget — under 40,000 COP per night — the eco-hostels in Medellín won’t work for you. The cheapest genuinely sustainable option is La Casa Verde at 60,000 COP. Below that, you’re choosing between sustainability and savings. I’m not judging. I’ve stayed in plenty of cheap non-eco hostels when money was tight. But I won’t pretend a 35,000 COP party hostel is doing anything for the planet.
If you need a private room with an en-suite bathroom, your options are limited. La Casa Verde has one private room, but it’s basic. BioHostel has a few, but they’re pricey. Most eco-hostels in Medellín focus on dorms because that’s where the backpacker market is. If you want a private sustainable stay, look at eco-hotels instead — but that’s a different budget category entirely.
And if you’re only staying one night, don’t overthink it. The environmental impact of a single night in any hostel is minimal. The choice matters when you’re staying a week or more. I met travelers who agonized over finding the perfect eco-hostel for a two-night stopover. That’s wasted energy. Book whatever is convenient and save your sustainability standards for longer stays.
The Bottom Line
If you’re a solo traveler in Medellín and you want to stay somewhere that actually practices what it preaches, book Casa Solar Hostel in Laureles. It’s not the cheapest, it’s not the fanciest, but it’s the most honest. The solar system works, the water gets reused, the food is local, and the community is real. I extended my stay twice. I don’t do that often.
For budget travelers, La Casa Verde is the best value in the city. For digital nomads who need El Poblado, BioHostel is the only legitimate choice. Everything else I stayed at was either greenwashing or just not worth the money.
The single most important takeaway: a hostel’s sustainability claim means nothing until you verify it yourself — ask about the water, check the bins, and look at where the food comes from.
