The large building draws inspiration from Herrerian architecture, evident in its exterior through the lintelled portals on Librería Street, featuring two sections and adorned with family coats of arms.

The palace's original layout has been modified by raising its height, covering its courtyard, and adding a section to the rear façade.

However, it retains its original typological configuration: a palatial structure organized around a central courtyard with an exterior appearance rooted in classical tradition, partially obscured by modern crépi finishes.

Adjacent to this courtyard were two more houses: one owned by Juan de Santander and another near the College of Santa Cruz on Librería Street, belonging to the barber Francisco Garay.

[6] The palace passed initially to Luis de Vitoria’s direct relatives and, through successive inheritances, later became the property of the Marquis of Valdegema [es].

His grandson, Ramón López de Tineo, who resided in Madrid, sold the property on March 31, 1883, to Francisca Capdevilla Vilella, a member of the Carmelite Sisters of Charity.

Its design is attributed to Pedro de Mazuecos el Mozo, a civil architect of the period who supervised and directed the construction and measured the land.

Further adaptations were made in the 20th and 21st centuries, including what were then considered improvements such as the replacement of the chapel floor and the sealing of the main entrance on Librería Street.

Previously unknown rooms hidden by rubble were discovered in the semi-basement, along with two staircases, six carved stone doors and five small windows.

Lastly, the old main door on the Librería Street was opened after being sealed up since the beginning of the 20th century, restored to its historical significance and improving access.