As part of the work done to reopen the Renaissance palace, the Museum equipped itself with two storehouses located in the Ecoparc mixed development zone in the town of Tillé north of Beauvais. The construction was undertaken by the department of the Oise with financial support from the Picardie region, for a total budget of 5 million euros.

The first stone was laid in mid-January. Currently the shell is being completed, and construction will be finished in late 2015; the collections will be moved in early 2016. The single-storey building has a usable area of 1,600 m2, with nearly 900 m2 reserved for storage of the museum's works. Specific work spaces are also being set up as a photo studio, a restoration studio, and a joiner's workshop.

This project will make it possible to bring the museum's collections, which are currently housed elsewhere, to a single place. This building will provide optimal conditions for the preventive conservation of these works: climate control, security.

In all, nearly 25,000 items will be installed in the storehouses. Among these are paintings, ceramics, drawings, furniture and sculptures.