I think BREEAM is making a difference, at least for new builds or major refurbishments.
BREEAM is a sustainability standard - companies get a score based on how sustainable their building is. Part of this is down to construction materials and design, and part of it is based on the building facilities. (gross oversimplification - sorry!)
Companies like the kudos of having a building that is scored “Outstanding” or “Excellent” rather than just “Very good” - and achieving high BREEAM may also be a planning requirement.
So what’s that got to do with cycling? Well, you get 1 BREEAM point if you have “sufficient” cycle storage spaces - the numbers vary from sector to sector, but typically at least 1 space for every 10 employees. (or for schools etc, it’s per 10 staff+student).
You also get a second point if you provide at least 2 of Showers/Lockers/Changing/Drying facilities.
https://www.breeam.com/BREEAMUK2014SchemeDocument/content/07_transport/tra03.htm
You also get points for NOT having too many car parking spaces!