Well-designed cost effective public restrooms provide maximum function in minimum space and are safe, accessible, available, attractive and easy to maintain.
The PHLUSH Design Principles for Public Restrooms identify seven essential characteristics of successful facilities and specify the design elements required to meet each. They build on a variety of sources and are aligned with the needs of diverse users and the realities of contemporary urban life.
The working goal of the PHLUSH Public Toilet Design Principles: Cost-effective public restrooms that provide maximum function in minimum space and are safe, accessible, available, attractive and easy to maintain.
Endorsed and approved by neighborhood groups in Portland, Oregon in 2008, these principles guide the work of PHLUSH today. We summarize the seven principles as follows -


- Site restrooms to benefit from natural surveillance by the community.
- Apply Crime Prevention through Environmental Design (CPTED) in location, layout, lighting, surface, materials, fixtures and hardware. Read more about Building Safe Toilet Design into Shared Urban Space.
- Protect users, especially children, from inappropriate contact with strangers in “gang toilets” by providing individual direct entry stalls.
- Design doors to ensure privacy with safety: full length with a 1.5 – 2” gap at the bottom and a lock that authorities can open from the outside in an emergency.
- Activate surrounding area with retail, information kiosks, food carts, street performers, bus stops, or parking pay stations.
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PHLUSH is excited to announce a new partnership with The Bathroom Company, creators of The Bathroom App—a restroom-finding tool that prioritizes accuracy, reliability, and community-driven data. Unlike other restroom apps, The Bathroom App relies on real people to scout locations and take photos, ensuring better quality data. So far, the app is available in San Francisco and New York…
Designing for a Shared Reality: What is a Multispecies Approach to Sanitation? By: Kory Russel At a Venetian Palace overlooking the grand canal, an unexpected exhibit highlighted a universal truth—every living being, from emperors to insects, must excrete waste. This display, "Designing for the Intimate Shared Reality of All…
Why You Should Consider Making Your Restroom More Inclusive (And How To Do It) By Kip Earlywine (Used with permission from Green Flush Restrooms) It’s a beautiful day outside, so Dave decides to visit a new city park he hasn’t visited before. Upon arrival, he’s struck by the care and detail…
Join PHLUSH and The Bathroom App’s Restroom Scavenger Hunt!
Designing for a Shared Reality: What is a Multispecies Approach to Sanitation?
Why You Should Consider Making Your Restroom More Inclusive (And How To Do It)