Practice Notes relating to Water Seepage may be downloaded through the following links on the webpages of the Buildings Department -

• Practice Note for Authorized Persons, Registered Structural Engineers and Registered Geotechnical Engineers on Water Seepage
• Practice Note for Registered Contractors on Water Seepage
• Practice Note for Authorized Persons, Registered Structural Engineers and Registered Geotechnical Engineers on Planning and Design of Drainage Works