Building an outdoor toilet and shower from scratch on my family's finka property in Tenerife. Rocks, reclaimed wood, and one month of work.
The Site
My family bought a finka property in Tenerife. Quite a lot of land, several caves, and a 100-year-old stone house with two rooms and nothing else. No electricity, no bathroom, no running water, nothing. When I first arrived in December 2024 it threw me straight back in time, reminded me of summers when I was young at my grandmother's countryside in Latvia. I wanted to make things easier for everyone, so I decided to build a bathhouse. A small outdoor toilet and shower from scratch.
Foundation
We had a few electric tools that we had to charge at our very kind neighbors' place. For materials, those same neighbors came forward and offered us some old wooden beams, which was a huge help.
I started with a quick sketch of the plan and got to work. The ground there is mostly rock so I had to dig out the hole by hand. Cut a big plastic plumbing pipe into four pieces, one for each corner, dropped a cut piece of rebar inside each one so the vertical wooden beams would have something to sit on, and filled them all with concrete.
Framing
Once the footings cured I dropped the four main vertical beams into place and started connecting them with horizontal ones. At each corner I added two angled braces, and between the main posts I ran cross-bracing diagonally so the whole structure had proper rigidity and wouldn't move around. That was the skeleton done.
For the first roof I used reeds harvested from the property. Layered and tied into a canopy, they gave the whole thing a natural look that actually felt right for the setting, and kept out both sun and light rain while the rest of the work continued.
Walls & Floor
Next came the smaller vertical beams to mark out where the door, the window and the walls would go. On the shower end I put in polycarbonate wall panels, two layers, semi-transparent, so the light comes through and the whole space stays well lit naturally without needing any electricity.
For the floor I pulled apart some wooden pallets and laid the boards down flat. Solid underfoot, free, and with enough gap between planks for water to drain through during showers. I also built a hatch section that lifts open. Water matters a lot on this property, we don't waste it lightly. Speaking of water, we got a 1000-liter cube and placed it near the top of the land so gravity does the work of moving it where we need it. Our neighbors helped us fill it each week and we paid for that. For catching water under the shower at that point we were just using several 8-liter plastic bottles, not the most efficient system but it worked.
Finishing
I added shelves, some hangers and a small shelf for shampoos and soap. Then came the door, and this is the part I'm most proud of. I built it from fabric using a pulley and string system. On the right side of the entrance there was a wooden pulley with a rope that ran around the frame on rounded wooden pegs and connected to a wooden bar sewn into the bottom of the fabric. That bar acted both as a weight to keep the fabric from flapping in the wind and as a counterweight for the whole mechanism. Pull the pulley down and the door opens. Let go and it closes by itself. Same from the inside out, one pulley on each side. I felt a little like Da Vinci. I'm also fairly certain that door was unlike anything else on the entire island.
The Result
Once everything was in place we installed a composting toilet. No plumbing needed, no digging a pit, and nothing going to waste. It felt like the right choice for a property where you think twice about every resource you use.
I went back to Latvia after that and my mother and Carlos used the bathhouse all summer. They really enjoyed it. Eventually our neighbor, a very capable DIY guy, came forward and offered to fit a proper wooden sliding door and a better roof to replace the reed canopy, and well, it was hard to say no. So that was version one.
I already knew coming back would mean a long list of improvements. No paint anywhere, no sink, and plenty of smaller things still to sort out. The next visit was always going to be a bigger project.
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