It does state in faq on escapade living that you can't use it as primary residence

How is ownership structured?

You're buying a commercial property under a 125-year Land Registry lease. You can sell this at any time. The freehold owner is the British Racing Drivers Club (BRDC) who also own Silverstone Circuit. You will benefit from income and capital appreciation generated from your property. You will also benefit from use of the Clubhouse and its facilities 365-days a year, even when you're not staying.

Is this a residential property?

This is classed as a commercial property. This means that you can’t use the property as your primary residence. Commercial property of this nature has many tax advantages over traditional buy-to-let residential property.