The renovation of the Pavilion X interior was a systems upgrade, which included the replacement of all of the existing electrical and plumbing and the replacement of radiators and window air conditioners with a new HVAC system. A new fire suppression system was also installed, along with a fire detection system.

An unusual feature of this project was the use of sub grade air ducts below the basement floor, which preserved the roominess of the basement by eliminating the need for large bulky soffits.

Architectural improvements included a completely upgraded kitchen and new fixtures in all of the bathrooms. The original balcony and rear doors were restored by a graining process to their Jeffersonian faux mahogany appearance. A full staircase to the attic replaced the existing ladder to facilitate access for storage and maintenance.