Terms of Service

Use of this site is on the terms below. They exist to be clear about what published guidance is and what it is not.

Linked Resources

Links to third party sites are provided where they are useful. A link is a pointer, not a recommendation of whoever is at the other end of it.

General Information Only

No article here constitutes advice for a specific project. A qualified professional assessing the property in person is the appropriate source for that, and their assessment takes precedence over anything written in advance.

Changes

What appears on this page is the current agreement. Earlier versions are superseded rather than archived.

Liability

Responsibility for how the information is used rests with the reader. To the extent permitted by law, no liability arises from its use.

Intellectual Property

The writing on this site is not free for reuse. Quoting a short passage with a link back is welcome; republishing a page in full is not.

No Warranty of Accuracy

Every effort is made to keep this material correct, without any guarantee that it is. Regulations and market prices both change faster than published guidance does.