Building Regulations Part H: Our expert guide to drainage installations

architect drawings with pipes, connectors and hard hat on top of them
Approved document H lays out drainage requirements (Image credit: Branislav/Getty Images)

If you’re planning a major refurbishment or even building a new home, you’ll know that your project must comply with Building Regulations.

While the term ‘regulations’ suggests that you’ll soon be wrapped up in red tape and endless bureaucracy, in general, the requirements are sensible. They exist to protect people's safety, health and welfare in and around the building or extension you’ll be inhabiting and cover every element of the construction process.

Mark Stevenson

Mark Stevenson has worked as a construction professional for almost 30 years and following an extensive career in housebuilding became Managing Director of Potton where he now helps self builders build their own homes.


Whilst Mark describes himself as a ‘professional builder’ as a result of his career in housebuilding and timber systems manufacturing, he has specialist knowledge of timber construction and extensive expertise in finding land and appraising building plots.


He regularly shares his knowledge at Homebuilding & Renovating Shows and in Potton’s Self Build Academy where he leads the finding land and how to build seminar programme.

Aside from Mark’s professional career, his skills also extend to practical building knowledge as a skilled joiner, hands-on renovator and serial self-builder of his own development projects.


He is also Vice Chair of industry body, the Structural Timber Association.