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

Letting Agent Talk

Selective Licensing Requirements

Propertymark is reminding landlords of their responsibilities under Selective Licensing schemes as more local authorities across England and Wales continue to implement or expand these regulatory measures. Selective licensing is designed to improve housing standards, ensure safer communities, and provide greater oversight of privately rented properties. Propertymark urges landlords to familiarise themselves with the rules…
Read More
Estate Agent Talk

Autumn Budget 2025: Key advice for homeowners, buyers and landlords

The UK’s Autumn Budget delivered several headline-grabbing policies that will directly shape the future of the housing market. While initial reactions ranged from concern to confusion, property experts say the sector should take a measured, informed view, particularly as many changes won’t take effect for several years. From understanding who is going to face implications,…
Read More
Breaking News

Five real estate opportunities to watch in 2026

By Daniel Austin, CEO and co-founder at ASK Partners The 2025 Autumn Budget offered limited stimulus for the housing market and, persistent headwinds such as sticky inflation, higher for longer interest rates, elevated construction costs, and slow planning processes continue to impact development viability. But there are still reasons for cautious optimism. The UK economy…
Read More
Breaking News

Are Rightmove fee increases set to outpace agent earnings

The latest research from Property DriveBuy suggests that the nation’s estate agents are on course to see the sums paid to Rightmove in fees outpace the growth in commission earned for a third consecutive year, having already seen significantly higher increases in Rightmove fees over the last two years versus the commission bagged per property…
Read More
Breaking News

Breaking Property News 3/12/25

Daily bite-sized proptech and property news in partnership with Proptech-X.   Banking facility will make it easier and more cost-effective for TPFG franchisees to access funding  The Property Franchise Group (TPFG), one the UK’s largest property franchisors, has announced the launch of a new bespoke lending facility, created with Barclays. This initiative will make it easier…
Read More
Breaking News

What the Autumn Budget 2025 means for downsizers

Now that the dust has settled on what was a hotly anticipated Autumn Budget from the UK government, over-50s property specialist Regency Living has produced a concise guide to the implications for the nation’s downsizers, and concluded that this Budget is going to further increase demand on England’s park home market. The 2025 Autumn Budget was…
Read More