Small bathrooms present unique challenges when it comes to fixture selection. The toilet bowl, being one of the largest fixtures, requires careful consideration to maximize space while maintaining comfort and style. Modern toilet bowl designs have evolved to address these constraints without compromising on aesthetics or functionality.

In this comprehensive review, we'll explore the top 5 modern toilet bowl designs specifically engineered for small bathrooms, analyzing their features, installation requirements, and real-world performance.

Understanding Space Requirements

Before diving into specific models, it's essential to understand the minimum space requirements for toilet installation:

  • Front clearance: Minimum 600mm (24 inches) from the front of the bowl
  • Side clearance: Minimum 380mm (15 inches) from the center to any wall or fixture
  • Total footprint: Standard toilets require 700-800mm length, compact models 600-700mm

Top 5 Space-Saving Toilet Bowl Designs

1. Wall-Hung Toilet Bowls

Our Rating: ⭐⭐⭐⭐⭐ (5/5)

Wall-hung toilets are the ultimate space-savers, creating a floating effect that visually expands your bathroom.

Key Features:

  • Concealed cistern mounted in wall
  • Adjustable installation height (400-430mm)
  • Floor space underneath for cleaning
  • Modern, minimalist aesthetic
  • Projection: 480-520mm from wall

Pros:

  • Creates illusion of more space
  • Easy floor cleaning underneath
  • Contemporary, sleek appearance
  • Customizable installation height
  • Reduces visual clutter

Cons:

  • Higher installation cost
  • Requires sturdy wall structure
  • More complex maintenance access
  • Professional installation essential

Best For: Modern renovations, minimalist designs, compact bathrooms needing maximum floor space.

Installation Considerations: Requires concealed cistern frame, reinforced wall, and professional plumbing. Budget $800-1,500 for complete installation.


2. Compact One-Piece Toilets

Our Rating: ⭐⭐⭐⭐½ (4.5/5)

One-piece toilets with shortened projections combine style and functionality in a compact package.

Key Features:

  • Integrated tank and bowl design
  • Reduced projection: 650-680mm
  • Seamless construction
  • Easy-clean surfaces
  • Standard comfort height

Pros:

  • Space-efficient design
  • Simple, elegant appearance
  • No gaps for dirt accumulation
  • Easy to clean
  • Standard installation process

Cons:

  • More expensive than two-piece
  • Heavier to install
  • Tank size may limit flush power
  • Limited replacement options

Best For: Standard renovations, bathrooms needing moderate space savings, easy-maintenance requirements.

Price Range: $400-$900 depending on features and finish.


3. Corner Toilet Bowls

Our Rating: ⭐⭐⭐⭐ (4/5)

Corner toilets maximize often-wasted corner space, perfect for very small bathrooms or powder rooms.

Key Features:

  • Triangular or angled tank design
  • Fits directly into corner
  • Saves 200-300mm of linear space
  • Standard seat size maintained
  • Various flush mechanisms available

Pros:

  • Excellent space optimization
  • Frees up wall space for other fixtures
  • Unique design element
  • Functional in awkward layouts
  • Standard comfort maintained

Cons:

  • Limited style options
  • May look unconventional
  • Plumbing modifications often needed
  • Higher cost than standard models

Best For: Very small bathrooms, awkward layouts, powder rooms, guest bathrooms.

Installation Notes: Requires corner-specific plumbing. Professional installation recommended due to unique positioning requirements.


4. Back-to-Wall Compact Toilets

Our Rating: ⭐⭐⭐⭐ (4/5)

Back-to-wall toilets offer a middle ground between wall-hung and traditional floor-mounted designs.

Key Features:

  • Concealed cistern option
  • Flush directly against wall
  • Compact 600-650mm projection
  • Floor-mounted stability
  • Clean, streamlined profile

Pros:

  • More affordable than wall-hung
  • Concealed cistern option
  • Easy installation on any floor
  • Professional appearance
  • Reduced projection depth

Cons:

  • Still requires floor space
  • Not as space-saving as wall-hung
  • May need furniture unit for cistern
  • Limited tank capacity

Best For: Budget-conscious renovations, retrofits, bathrooms needing semi-concealed design.

Installation: Standard floor mounting with optional furniture unit or in-wall cistern. DIY-friendly with plumbing knowledge.


5. Short Projection Two-Piece Toilets

Our Rating: ⭐⭐⭐½ (3.5/5)

Short projection two-piece toilets offer space savings at an affordable price point.

Key Features:

  • Reduced projection: 660-700mm
  • Separate tank and bowl
  • Standard installation
  • Easy repairs and part replacement
  • Various flush options

Pros:

  • Most affordable option
  • Easy to install and repair
  • Standard plumbing compatible
  • Wide availability
  • DIY-friendly maintenance

Cons:

  • Less space-efficient than other options
  • Joint seam requires cleaning
  • More traditional appearance
  • Larger visual footprint

Best For: Budget renovations, rental properties, DIY installations, traditional bathrooms.

Price Point: $200-$500, most economical space-saving solution.


Comparison Matrix

Design TypeSpace SavingsInstallation CostVisual ImpactMaintenanceOverall Rating
Wall-Hung⭐⭐⭐⭐⭐$$$ExcellentModerate5/5
Compact One-Piece⭐⭐⭐⭐$$ExcellentEasy4.5/5
Corner⭐⭐⭐⭐⭐$$$GoodEasy4/5
Back-to-Wall⭐⭐⭐⭐$$GoodEasy4/5
Short Two-Piece⭐⭐⭐$ModerateEasy3.5/5

Additional Considerations

Flush Technology

Space-saving doesn't mean compromising on flush performance:

  • Dual-flush systems: Water-efficient, 3L/6L options
  • Pressure-assisted: Better flush with smaller tanks
  • Rimless designs: Improved hygiene, easier cleaning
  • Soft-close seats: Standard in premium models

Water Efficiency

Look for WaterSense certified models:

  • Full flush: 4.5-6 liters
  • Half flush: 3 liters
  • Annual water savings: up to 16,500 liters per household

Installation Costs

Budget for complete installation:

  • Wall-hung: $800-$1,500
  • Standard compact: $300-$600
  • Corner models: $500-$900
  • Professional labor: $200-$400

Seat Comfort

Despite space constraints, seat comfort shouldn't be compromised:

  • Standard seat width: 350-380mm maintained
  • Elongated bowls available in compact designs
  • Soft-close mechanisms recommended
  • Quick-release hinges for easy cleaning

Our Top Recommendation

For most small bathroom renovations, we recommend compact one-piece toilets as the best balance of space savings, cost, and functionality. They offer:

✅ Significant space reduction (650-680mm projection) ✅ Clean, modern aesthetic ✅ Reasonable installation cost ✅ Easy maintenance ✅ Wide style selection

For maximum space savings and modern aesthetics, wall-hung models are unbeatable but require higher investment.

Making Your Decision

When selecting a toilet bowl for your small bathroom, prioritize:

  1. Available space: Measure carefully, including clearances
  2. Budget: Factor in fixture cost plus installation
  3. Bathroom style: Match your overall design aesthetic
  4. Installation complexity: Consider DIY vs. professional installation
  5. Long-term maintenance: Think about repair accessibility

Conclusion

Modern toilet bowl designs have evolved significantly to address small bathroom challenges. Whether you choose the space-maximizing wall-hung design, the practical compact one-piece, or the innovative corner model, there's a solution for every small bathroom and budget.

The key is measuring your space accurately, understanding your installation limitations, and selecting a model that balances space savings with your comfort requirements and aesthetic preferences.

Ready to upgrade your small bathroom? Explore our complete range of compact toilet bowls and consult with our experienced team for personalized recommendations based on your specific space and requirements.


Related Reading:

  • How to Maximize Space in Small Bathrooms
  • Wall-Hung vs. Floor-Mounted Toilets: Complete Comparison
  • Dual-Flush Toilet Technology Explained