Reading University Henley business school also do MSc real estate investment and finance. That is ranked the best in the UK along with Cambridge Mphil real estate finance.
Have friends been from both courses working from real estate development to real estate fund management to real estate private equity - worked globally from US, Asia to Europe. The Henley course is supposed to be better real world training with good blend of practical and theory. Cambridge is a little over academic but been Cambridge you get that global brand plus excellent for real estate private equity etc. Both are well known in Europe and Asia as leading real estate courses.
Both will get you to where you want depending on niche in real estate, but would only take Cass if you can not get into one of those two.