How to design the perfect under stair bathroom

You know that awkward feeling of allowing guests to use your bathroom. And then your heart begins to race to wonder who used the bathroom after the last time you checked and what impending sight awaits your guest. Scary right?

This article offers the solution to all your questions when your guests ask the big question. “May I use the restroom?”

Design inspirations for your under stairs bathroom

Pretty sure the space underneath your staircase didn’t seem like a solution. That space can be even more functional than just a storage space. And can fit a stylish bathroom not just for your guests but also for your kids and elderly relatives.

Getting into a small space could ignite claustrophobia, and compact under stairs toilet designs can make this small space more comfortable.

Maximise space

With such a small space to work with, you want to ensure that you maximise your space. Free up the floor. With fewer features on the floor, the bathroom space appears less cluttered and provides an open floor space.

Fixing toilet features at the corners is an option you might want to consider.

The doors

Whatever door fits your preference. Be it traditional doors, sliding doors, or folding doors. They open outwards to create a more welcoming appearance. An even more cool effect is that the doors are custom built.

These doors are made to perfection so that they close perfectly under the stairs.

Storage space

The available space determines how much storage space you can use. Therefore, we recommend a minimum floor space layout of about 80cm x 140cm before considering a bathroom beneath your stairs as an option.

Even within this small space, you’ll need some space for all your toiletries. Installing a built-in mirror with storage is an appealing option. A cabinet attached to the sink is yet another option. Check out other ideas for under stairs that can bring out the creativity in you.

Colours

With colours, you can play tricks on your eyes and create an illusion of a spacious room in mind.
White is a perfect option for such a small bathroom and can make the room look bigger. Another trick is using large tiles, and the space appears visually spacious when you use the same tiles for the floor and walls.

Lighting

Lighting is an important feature, especially for smaller bathrooms. The darker it is, the smaller it feels.

When adding lighting to your under stairs bathroom, remember to add lights that illuminate but don’t overshadow the space. A great way to do this is by adding lighted mirrors.

Conclusion

Working in a small bathroom can be a challenge and requires careful planning. With this guide, you are definitely on the right track in designing your under stair bathroom. Here is more inspiration for using the space under your stairs.

FAQs

How do I prevent head bumps in such a small space?

To ensure enough headroom, the tallest part of the toilet has the sink and mirror where you stand, and the shortest area has the WC where you can sit.

How do I deal with ventilation?

Depending on the location of your stairs, you’re likely not going to have a window. However, you can fix in extractors to get out moist and provide ventilation.

How do I connect my under stairs bathroom to the sewer line of my home?

If a toilet is directly above or beneath the stairs, connecting the pipe to the sewage system becomes easy. However, where such a scenario does not exist, you may need to invite an expert to install a new sewer line.

EAN Breaking News

Breaking News from the team at Estate Agent Networking. Have a new story to share with us? Then please get in contact today! When and where we can we will refer to third party websites with a 'live link back' where news was released first.

You May Also Enjoy

Breaking News

UK rents fall for first time on record

Hamptons Monthly Lettings Index – December 2025 Rents end 2025 below where they started for the first timeon record. Rents in the capital return to 2023 levels as five of 11 GB regions see rents fall in 2025 Newly agreed rents dipped by 0.7% across Great Britain in 2025 – the first time rents fell…
Read More
How to add value to your home
Breaking News

London boasts most slow-to-sell properties

The latest research from Yopa has found that while the housing market has shown signs of turning a corner since the Autumn Budget, sellers across the more inflated regions, in particular, are still struggling with slower market conditions, with almost one in five homes classed as slow-to-sell found in London. Yopa analysed current market listings…
Read More
to let sign 2025
Breaking News

Rental availability rises 25%

Rental availability rises 25% in Q4, pointing to slower tenant movement New analysis from Inventory Base, a leading provider of inspection and compliance technology, reveals that rental availability in England increased by 25% in Q4 2025. While seasonality will have played a role, a 15.4% year-on-year rise suggests a larger-than usual build-up of available homes.…
Read More
Estate Agent Talk

From loft insulation to lower interest rates: How energy efficiency really pays off

Homeowners could cut up to £2,000 a year from their energy bills this Energy Savers Week, by combining targeted home improvements with simple efficiency changes and, in doing so, they could improve their mortgage affordability by qualifying for a green mortgage – further boosting the savings on offer from taking a greener approach to homeownership.…
Read More
Estate Agent Talk

How homeowners can save big by going green

Homeowners could cut up to £2,000 a year from their energy bills this Energy Savers Week (19th-25th Jan), by combining targeted home improvements with simple efficiency changes and, in doing so, they could improve their mortgage affordability by qualifying for a green mortgage – further boosting the savings on offer from taking a greener approach…
Read More
Rightmove logo
Breaking News

Largest ever January price jump, as market sentiment rebounds after the Budget

The average price of homes coming to the market for sale rises in January to £368,031, a 2.8% increase from December (+£9,893). This is the largest ever price increase seen in the month of January, and the largest of any month since June 2015: National average property prices are now 0.5% ahead of this time…
Read More