The project implementation consists two stages. The first stage was completed in May 2022, and it included the development of a construction design for the rebuilding and restoration of the property at Torņa iela 1 in Riga, which underwent an expert review. Also, as part of this work, the facade was restored, the foundation was waterproofed, and the windows were replaced. Given the current situation and the disproportionately high costs of construction, it was decided to raise European Union funding to implement the second stage of the project during the 2021–2027 planning period. According to the above draft Cabinet Regulations, the financing for the construction is to come both from the ERDF and from the national budget. The building is historical and, therefore, has high levels of primary energy consumption.  The developed construction design includes the installation of a forced ventilation system with heat recovery units, as well as air conditioning that meets the requirements for the storage of works of art and the well-being of workers. The project also involves a complete reconstruction of the building’s interiors as well as HVAC, power, telecoms, and water and sewer systems in order to meet modern safety and general requirements. It is also planned to improve energy performance, insulating and replacing the roof, and rebuilding the section of Torņa street between Jēkaba and Arsenāla streets with the construction a rainwater drainage system within it, in order to solve the issue of high ground water levels around the property and the seepage of water into its basement.

The Arsenāls exhibition hall of the Latvian National Museum of Art is located in an important architectural heritage site, a late Russian-classicist  customs warehouse or arsenal  building from the early 19th century, which has been adapted for museum use. The building was originally designed by architect Johann Eduard de Witte. A little later, the design was expanded with suggestions by Julius Adolph Spazier; in 1828, St Petersburg architect Alexander Nellinger and customs department architect Ivan Lucchini prepared the final version, and in November 1832, the official commissioning of the building took place.
The arsenal building was used as a warehouse throughout its history. It the 1920–30’s, it accommodated the personal belongings of members of the military. After the Second World War, a department of the Soviet Army used it for storing goods and supplies; it was also used by a military school. In the mid-1980’s, the building was taken over by the Ministry of Culture, which arranged for the creation of a museum there. On 1 January 1989, after the relocation of the the second half of the 20th century art collection from a building in Krišjāņa Valdemāra street, the Arsenāls art museum opened its doors.
In accordance with the Cabinet Order of 20 December 2000, the Association of Art Museums of Latvia was dissolved, reorganising the entire structure of the National Art Museum and the Arsenāls art museum at the same time. A single national museum was created on the basis of these two museums: the National Museum of Art. On 1 September 2005, the museum was renamed the Latvian National Museum of Art, but Arsenāls has continued to function as an exhibition hall for LNMA.
On 24 February 2020, the exhibition hall shut down for renovation. The goal of the reconstruction is to restore and preserve the building, with the restoration of the facade, repairs of the roof eaves, waterproofing of the foundation, restoration of the basement hatches and windows, adaptation of the interiors in order to create a modern venue for the exhibition of art and public events.[1] Before the beginning of the reconstruction, some of the LNMA collection that had been in the Arsenāls building was moved to the Museum Repository at Pulka iela 8 in Riga, where it will remain.