A while back, a client inquired if it was possible to install "just a toilet and a small sink" beneath her staircase. Initially, I chuckled, considering it a design challenge — however, that project transformed into one of my all-time favorites. The charm of small areas, particularly unique spaces like under-stair nooks, compels you to tap into unexpected creativity. Today, I’m excited to share 10 inspiring small bathroom ideas for under stairs that I have personally explored, refined, and completely adored.

1. Embrace the floating vanity

A floating vanity brings an immediate sense of openness to a compact area, and in an under-stairs bathroom, the additional leg space it provides becomes crucial. In one instance, coupling it with a narrow mirror completely transformed the atmosphere.

2. Innovative corner sink designs

When the slope of the stairs limits your layout, a compact corner sink becomes invaluable. I expertly designed one using a 3D room planner from Homestyler to ensure every inch served a purpose effectively.

3. Eye-catching wallpaper designs

Don’t hesitate to incorporate patterns — they can turn the tiniest powder room into a stunning jewel box. A dramatic floral or geometric wallpaper print can effectively divert attention from low ceilings.

4. Opt for sliding doors instead of hinges

A hinged door can occupy excessive space. In one narrow hallway project, switching to a pocket door saved us nearly a foot of available clearance.

5. Custom shelving for awkward corners

That challenging low corner can transform into towel or decor storage by utilizing tailored shelving. I enjoy incorporating concealed LED strips for an inviting ambiance.

6. Striking lighting fixtures

Incorporating a distinctive pendant light or an artistic wall sconce instantly uplifts an under-stairs bath. On one occasion, I strategically planned it digitally with a free floor plan tool from Homestyler to ensure perfect proportions.

7. Clear glass partitions

If your under-stairs bath features a shower, consider a transparent glass divider — it maintains an open feeling, avoiding the boxed-in sensation.

8. Monochromatic color schemes for harmony

By adhering to a single color palette, small bathrooms can achieve a sense of coherence. I previously designed an all-matte-black powder room that unexpectedly felt spacious and classy.

9. Effective ventilation solutions

Due to airflow challenges under stairs, it’s wise to select a quiet yet powerful exhaust fan. Bonus: it curtails moisture build-up and safeguards your wallpaper.

10. Custom-designed fixtures

In many under-stair areas, standard sinks or toilets simply won’t fit. I’ve sourced specially designed fixtures for tiny homes, carefully plotting them using a digital layout plan on Homestyler beforehand to prevent expensive errors.

Frequently Asked Questions

Q: Is it worthwhile to create a bathroom beneath the stairs?

A: Definitely, if you require an extra powder room and have unutilized space — with the right approach, it can feel deliberate and stylish.

Q: What’s the best way to deal with low ceilings?

A: Utilize lighting and mirrors to draw attention upward, and position taller elements where there’s the most headroom.


Homestyler is your go-to online home design platform! With its user-friendly design tool, stunning 3D renderings, and a wealth of DIY video tutorials, you can effortlessly transform your space and bring your creative ideas to life. Start designing today!

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