Small bathrooms are where good design matters most. When space is limited, every decision, from layout to storage to lighting, has a visible impact. Over the years, working on compact ensuites and full-scale small bathroom renovations, I've found that thoughtful planning makes far more difference than square metres ever will.
If you’re searching for practical interior design tips for small bathrooms that you can actually apply in your own home, these are the five principles I always I come back. 
Image Source: Mid-Century Modern House by Kerrie-Anne Jones.
1. SMART STORAGE
In a small bathroom, storage needs to work harder.
When designing the space, opt for a vanity with large drawers or cupboards rather than a pedestal basin or open shelf. Deep drawers are far more practical for storing everyday items like hair tools, skincare and cleaning products, and they keep surfaces clear.
A recessed mirror cabinet is another smart solution. It looks like a simple mirror from the outside but provides hidden storage behind it, which means you gain functionality without adding bulk.
Wall niches beside the basin or inside the shower are also worth considering. They keep products neatly contained and reduce visual clutter.
In compact bathrooms, thoughtful storage is what keeps the space feeling calm rather than crowded. 
Image Source: Mid-Century Modern House by Kerrie-Anne Jones.
2. AVOID VISUAL OBSTRUCTIONS
In a small bathroom, what you see matters just as much as what’s there.
One of the simplest ways to make a small bathroom look bigger is to minimise visual obstructions. Instead of a bulky shower enclosure or framed door, I often specify a frameless glass panel or fixed partition. It keeps water contained but allows the eye to move freely across the room.
The same principle applies to materials. Continuing the floor tile into the shower creates a sense of flow and reduces visual breaks. When surfaces feel continuous, the bathroom feels larger.
Small bathroom design isn’t about squeezing everything in. It’s about creating openness wherever possible. 
Image Source: Kent by OME Dezin.
3. LET MORE LIGHT IN
Light can completely change how a small bathroom feels.
If you’re planning a small bathroom renovation, consider whether a larger window, few smaller windows or skylight is possible. Even a modest skylight can transform a compact space, particularly in an ensuite where wall space is limited.
If structural changes aren’t an option, think about how materials reflect light. Pale stone, gloss tiles or even softly polished finishes can help bounce natural light around the room. Avoid heavy window treatments that block daylight unnecessarily.
When people ask me how to design a small bathroom so it feels airy rather than cramped, my answer is almost always the same, prioritise light.
Image Source: Condo de Aranda by PULSO ESTUDIO.
4. RETHINK YOUR BATHROOM DOOR
This is one of the most overlooked small bathroom design ideas.
A standard hinged door requires floor space to swing open, which can restrict where you position your vanity, toilet or bath. A pocket door, also known as a cavity slider, slides neatly into the wall and frees up that valuable space.
In compact bathrooms, those extra centimetres matter. Removing door clearance can significantly improve how the layout functions and feels.
It’s a subtle architectural move, but one that can make a big difference.
Image Source: Makani Collective.
5. COMBINE YOUR BATH & SHOWER
In many small bathroom layouts, there simply isn’t room for both a freestanding bath and a separate shower.
A shower over bath can be the most practical solution, particularly in family homes. The key is to detail it well. A frameless glass screen feels far more refined than a curtain, and consistent tiling around the bath helps the entire space feel cohesive.
It’s not a compromise, it’s a considered layout decision that makes the most of limited square metres.
When designed thoughtfully, a combined bath and shower can look just as sophisticated as a larger bathroom layout.
DESIGNING A BATHROOM WELL
Designing a small bathroom isn't about making it feel bigger through tricks. It's about making it work seamlessly.
Thoughtful storage, clear sightlines, natural light and a considered layout will always have more impact than chasing trends or overcomplicating the space.
If you’re planning a small bathroom renovation and would like professional guidance, I offer everything from a one-off 55-minute bathroom design consultation to end-to-end residential interior design.
You can explore my interior design services here, or email info@kerrieannjones.com.au to begin the conversation. 
Image Source: Mid-Century Modern House by Kerrie-Anne Jones.
FAQ: INTERIOR DESIGN TIPS FOR SMALL BATHROOMS
What colours make a small bathroom look bigger?
Lighter, warm neutrals tend to make a small bathroom feel more open because they reflect light and create visual continuity. Soft whites, warm greys and muted stone tones are often more forgiving than stark white. In small bathroom design, keeping the palette cohesive across walls, tiles and cabinetry helps the room feel calm rather than segmented.
What are the best tiles for a small bathroom?
The best tiles for a small bathroom are those that create continuity. Larger format tiles with minimal grout lines can make the space feel less busy. I often recommend extending the same floor tile into the shower to maintain flow. Texture can still be introduced, but it should feel intentional rather than overwhelming.
How much does it cost to renovate a small bathroom?
The cost of a small bathroom renovation can vary significantly depending on finishes, plumbing changes and structural work. In Australia, a cosmetic update will sit very differently to a full renovation involving waterproofing, new layout and custom joinery. It’s always worth planning your budget around layout, tiling and fixtures first, as these have the biggest impact. I break down more of these costs in my free bathroom renovation guide here.
What is the best lighting for a small bathroom?
Layered lighting works best in a small bathroom. Combine overhead lighting with wall lights or mirror lighting to avoid harsh shadows. Good bathroom lighting improves both function and atmosphere, especially in compact spaces where natural light may be limited.
How do you design a small ensuite bathroom?
When designing a small ensuite bathroom, layout is everything. Prioritise a clear circulation path, consider a wall-hung vanity to free up floor space, and use frameless glass in the shower to maintain openness. Smart storage and cohesive materials will help the ensuite feel connected rather than cramped.
Can a small bathroom still feel luxurious?
Yes, absolutely. Luxury in a small bathroom comes from materials and detailing rather than size. Stone surfaces, refined hardware, well-considered lighting and thoughtful layout can elevate even the most compact space.
