BS 8533:2017 Assessing and managing flood risk in development. Code of practice

Floods
Safety measures
Reservoirs
Sewerage
Water supply and waste systems (building
Risk assessment
Design
Planning
Structural design
Maintenance
Management
Physical planning
Waste-water drainage
Water supply engineering
Surface-water drainage
Sewers
Buildings
Hazard prevention in buildings
Drainage

Link: BS 8533:2017 Assessing and managing flood risk in development. Code of practice
Source: BSI Standards