Upgrade and modernisation of corporate logo for property company

This is what Windsor Consultants or Windsor Spain was looking for in their logo design

We require a new, updated, modern logo design for our real estate company. Based in southern Spain, we sell and rent property to foreign clients. Our logo is 25 years old and is based on our family history with Windsor, Windsor Castle, the military and Royal family.
We need something of a more modern font to our current logo but keeping the colour scheme of red and yellow and probably on a white background, although our office frontage is yellow (see attached file) but keeping the tradition of our link with Windsor. We would like to use a single outline of Windsor Castle's roof line (see ttached file) to either top or bottom our name:-
A) Windsor Consultants (old name) or
B) Windsor Spain (name of our website) www.windsorspain.com

The logo needs to be usable across many forms such as office signage, business cards, website, stationery, cars etc

We do not want the usual property logos with houses or any reference to Spain (palm trees etc). Read more