The works were carried out in small steps, thanks to the funds obtained mainly from the Mazowieckie Voivodeship Self-Government, the Ministry of Culture and National Heritage, the Provincial Fund for Environmental Protection and Water Management and the Regional Museum in Siedlce's own funds. The next stage of revitalization took place in 2015, when the obtained EU funds made it possible to complete the works undertaken.
At the same time, the museum collected items related to landowner culture in order to introduce visitors to the atmosphere of the mansion from the turn of the 19th and 20th centuries. After four years of very intensive work, on October 1, 2015, the Museum of the Landowners in Dąbrowa was opened, which thus became the third branch of the Regional Museum in Siedlce after the existing branches: the Museum of Firefighting in Kotuń and the Museum of Struggle and Martyrdom in Treblinka.
Since 2015, the Museum of the Landowners in Dąbrowa has been constantly expanding its collections, thus conducting exhibition, research, educational, recreational and tourist activities,