Korporacja Budowlana DORACO has completed the largest investment in the Mikołajki Commune in the post-war history of the city – the reconstruction of the promenade on Lake Mikołajskie along Kajki and 3 Maja Streets. The investor is the Municipal and City Hall of Mikołajki.

As part of the contract, the company modernized and built quays with a total length of 1,526 meters. The scope of works also included infrastructural works, construction of platforms, buildings and shelters with a total cubature of over 2000 m3. The contract value is gross 40,245,113.50 million.