In the Residential Bathrooms CPD you will find. 

The Residential Sector Introduction  - Bathroom spaces across different occupants, spaces, and needs that change over time. 

Approved Document G legislation 

• Cold water
• Water efficiency
• Hot water supply and systems
• Sanitary conveniences and washing facilities
• Bathrooms requirements

Approved Document M legislation - "Access to and Use of Buildings"

CATEGORY 1 - Visitable dwellings
CATEGORY 2 - Accessible and adaptable dwellings
CATEGORY 3 - Wheelchair user dwellings

Accessibility & other considerations 
Water Regulations - Including NSF, Kiwa & Wras 
Certification - Including BREAAM & WELL 
Planning - Considerations across space and durability 
Slipping - Understanding the UK the “’R” value of the bathroom floor which indicates its slip resistance.
Hygiene - Flush types and touch free considerations
Sustainability - Technology solutions to meet sustainability requirements. 
Design - Market trends that can help drive sales 
Maintenance - Post completion considerations