You’re on a video call and someone at home has been in the only bathroom for twenty minutes. Or it’s the other way round — you’re the one stuck holding it until the meeting wraps up. When you work from home, that single bathroom stops being a minor inconvenience and becomes a genuine daily bottleneck. That’s why we’re getting more and more enquiries about an extra bathroom for the home office: a small cloakroom-style loo that takes the pressure off without requiring a full-scale building project.
The question isn’t whether it would be useful. It almost always would be. The question is when it actually makes financial sense, because squeezing a bathroom in where it doesn’t fit — or doesn’t need to be — is money down the drain. Let’s get straight to it.
When an extra bathroom home office setup pays off
It pays off when two things are true at the same time: you’re going to use it constantly, and there’s a sensible spot to put it. If only one condition is met, it usually isn’t worth it.
The situations where it makes the most sense:
- You live with other people and everyone works or studies from home. Here, a single bathroom is a real problem, not a luxury. Two people on calls simultaneously with one loo is a recipe for unnecessary stress.
- Your property has only one bathroom and is over 70 m². In homes this size there’s almost always a dead corner somewhere — under the stairs, an interior storeroom, the end of a wide hallway.
- You receive clients or visitors at home. Not having people walk through your personal bathroom with laundry on the rail is both a comfort and a professional image thing.
- You’re planning to let or sell in the medium term. A second bathroom is one of the renovations that genuinely moves the needle on property value.
When doesn’t it work? If you live and work alone, it rarely makes sense. If your home is under 50 m² and taking that space would leave you with a tiny bedroom, also no. And if the only viable location is miles from the existing drainage stack, the plumbing costs skyrocket and the whole calculation changes. Be honest with yourself: a bathroom you use twice a week doesn’t justify the work.
Cloakroom vs. full bathroom: what you actually need
For home working and general congestion, you almost never need a full second bathroom with a shower. What solves 90% of the problem is a cloakroom: toilet and basin. Full stop.
| Type | What it includes | Minimum space | What it’s for |
|---|---|---|---|
| Cloakroom | WC + basin | ~1.2 m² | Daily relief, visitors, home office |
| Cloakroom with small shower | WC + basin + 70×70 cm shower tray | ~2.5 m² | If someone genuinely needs to shower at different hours |
| Full second bathroom | WC + basin + standard shower | ~3.5–4 m² | Large families, room-by-room rentals |
Our honest view: for a home office setup, the cloakroom wins almost every time. It costs less, fits in spaces where a full bathroom is impossible, and it solves exactly the pain point — not being able to use the loo when you need to. The extra shower only earns its keep if there’s a genuine timetable clash around showering, not just for the sake of having one.
Where to fit it when space is tight
A cloakroom needs very little space, which opens up options most people never consider. The spots we use most often:
Under the stairs
The classic. If you live in a maisonette or a terraced house, the space under the stairs is gold. The toilet goes in the lower section and the basin where there’s enough headroom. We cover this in depth in our guide to cloakrooms under the stairs, because the sloping ceiling does require a particular approach.
The end of a wide hallway or an interior storeroom
Many Valencian flats in the Eixample or Russafa have generous hallways and interior rooms used as dumping grounds. Sectioning off 1.5 m² of that for a toilet is often the cleanest move: the walls are already there, the floor is already there, and sometimes the drainage stack runs nearby.
Borrowing from a bedroom or the existing bathroom
If one bedroom is particularly large, taking a metre and a half from it for a toilet is barely noticeable. And if your current bathroom is spacious, it’s sometimes possible to divide it into two. Before going down that route, it’s worth understanding how distribution works in challenging layouts — the principles are exactly the same whether you’re dealing with a long narrow bathroom or a spare corner.
The key technical issue in all of this is one thing: the distance to the drainage stack. The further the toilet is from the main soil pipe, the more complex and expensive the drainage run becomes. If your ideal spot is at the opposite end of the building from the stack, there are solutions (macerator pumps — sometimes sold under brand names like Saniflo), but they add cost and maintenance. Whenever possible, put the new cloakroom next to an existing wet zone.
What it costs: real prices in Valencia
No smoke and mirrors here. The price depends mainly on plumbing and how far you are from the drainage stack. These are the real ranges we see across the Comunitat Valenciana in 2026.
| Item | Indicative range |
|---|---|
| Simple cloakroom (close to stack) | €2,500 – €4,500 |
| Cloakroom with complex plumbing run | €4,500 – €6,500 |
| Cloakroom with small shower | €5,000 – €8,000 |
What pushes the price up: opening the floor to run pipes a long distance, installing a macerator pump, or adding new electrical circuits. What brings it down: positioning the cloakroom against a wall that already has a water supply and waste connection.
Bear in mind the return. According to data from the INE (Spain’s national statistics office), the number of households where someone regularly works from home has stayed well above pre-2020 levels, which means demand for comfortable work-from-home properties isn’t a passing trend. A well-executed second bathroom shows up in valuations and, if you rent the property out, in what you can charge. This isn’t just about comfort — it’s value that stays in the house.
If you want a figure tailored to your specific situation, plug your details into our bathroom cost calculator for a realistic starting point. For the full process of creating a bathroom where there wasn’t one before, our guide on adding a new bathroom from scratch will save you a few nasty surprises along the way.
The two things people always forget: ventilation and permits
Two details that get overlooked and come back to bite you later.
Ventilation. An interior cloakroom with no window absolutely requires mechanical extraction. Spain’s Código Técnico de la Edificación (the national building code, roughly equivalent to UK Building Regulations) requires it under the health and sanitation standards — and not without reason. Without fresh air circulation, that new cloakroom will smell musty within weeks. Budget for the extractor fan and its duct from day one.
Permits. Adding a new toilet isn’t always a simple cosmetic renovation. If you’re altering the layout or the drainage, in most municipalities in Spain it falls under obra menor (minor works), which requires a prior notification to the town hall. If you’re in a block of flats and the work affects a shared soil stack, it’s also courteous — and often required — to notify the residents’ association. It’s not an impossible hurdle, but handle it properly from the start so you don’t end up with a work stoppage halfway through. You can find a clear breakdown of what’s needed in our guide on building permits for bathroom works.
Frequently asked questions
What’s the minimum space I need for an extra bathroom for a home office?
A cloakroom with toilet and basin needs around 1.2 m², though 1.5 m² is a lot more comfortable. If you want to add a small shower, the minimum rises to 2.5 m².
Can I fit a toilet far from the existing pipework?
Yes, using a macerator pump system, but it adds to the cost and requires more maintenance over time. Whenever possible, we recommend placing the new cloakroom next to an existing wet zone that already has water supply and waste drainage.
Is a cloakroom or a full bathroom better value?
For home working and general day-to-day congestion, the cloakroom almost always wins: it’s cheaper, fits in more places, and solves the actual problem. A full bathroom with a shower only makes sense if there’s a genuine clash over showering times in your household.
Does a second bathroom add value to a property in Spain?
Yes — it’s one of the renovations with the best return, particularly in single-bathroom homes over 70 m². It shows up clearly in valuations and in rental yield. For a deeper look at how bathroom renovations affect sale prices, see our guide on renovating before selling.
Do I need planning permission to add a new bathroom in Spain?
If you’re changing the layout or the drainage, usually yes: it typically falls under obra menor (minor works) with a prior notification to the town hall, depending on your municipality. We can help you work out exactly what’s required in your case before you start.
Bottom line: if it’s causing you daily grief, it’s worth it
If the single bathroom is derailing your day every time you have a meeting, stop putting up with it. A cloakroom in the right spot — close to the drainage stack, properly ventilated — sorts that problem out for good, for less than you’d expect, and it adds lasting value to your home in the process.
What separates a worthwhile investment from wasted money is the location. That’s why the first thing we do is come and have a look: where those 1.5 m² can actually go, where the soil pipe runs, and what it’s really going to cost you. Take a look at some of our bathroom designs for inspiration, see how we approach bathroom renovations in Valencia, and if you’d like us to assess your dead corner, get in touch — we’ll give you a straight answer on whether it makes sense in your home, with no obligation.
