Blog / Guides
Complete bathrooms in shell-stage apartments: price, what's included, and common mistakes
What a finished bathroom should include, how cost changes by finish level, and the mistakes that come up most often.
September 7, 2026
What does a complete finished bathroom include?
Floor and wall tile across the entire wet zone, a toilet, a sink with a vanity or pedestal, faucets, a shower or tub, and fixtures (towel bar, holder, mirror). The design and measurements start from your bathroom's real shell-stage dimensions.
How much does finishing a bathroom cost?
Unlike a fitted kitchen or closets, a bathroom isn't a separate add-on — its cost is already built into the per-m² price of each finish level. What changes between levels is material quality and detail: Essential uses ceramic tile and basic fixtures; Plus uses porcelain tile and better-grade fixtures; Premium uses larger-format tile, a custom vanity, and a glass shower enclosure.
The online quote simulator calculates your bathrooms' real cost as part of the total per-m² price, based on the finish level you choose.
What are the most common mistakes when finishing a bathroom?
Not sloping the floor correctly toward the drain before tiling, which leaves standing water. Poor (or missing) waterproofing under the shower area before tiling, causing leaks into the apartment below. And buying fixtures that don't match the embedded plumbing, which forces opening the wall again after the bathroom is finished.
Can I see what my bathroom will look like before approving the work?
Yes. The online quote simulator includes a 3D preview of your apartment, bathrooms included, based on the finish level you choose — before any work begins.
How does the whole process work with architect Yainis Ávila?
It all starts with the online quote simulator: in minutes you get a price range and an estimated timeline in weeks, with no site visit needed. If you decide to move forward, a diagnostic visit gets scheduled and, if the project calls for it, the complete project study (detailed budget, updated floor plans, 3D modeling, and photorealistic renders).
Before any construction starts, everything is put in writing: a fixed price, a timeline in weeks, and a minimum one-year warranty. During execution, you follow real progress through the Client Zone, with no need to be on-site every day.