The David Tennant Treat 4 Today is something slightly different today but first I would like to preface it with the suggestion that you take it with a bucketload of salt!
This link is to a Blog called Richest Billionaires and they have estimated (i.e. guessed!) that David Tennant's net worth is about 7 million US dollars (that's about £5 million).
Quite how they come to that figure is not explained but presumably it takes into account the value of his properties.
Please remember though that this is totally an estimate....or maybe fabrication may be a better description.
Thanks to DavySitter for forwarding this link and if you are the owner of this Blog, I'd love some clarification on how you came to the figure.