The architect of the project was Dmitry Nikolayevich Chichagov. The house and outbuildings are adorned with stucco decor and executed in a unified style, giving them a harmonious appearance. Special attention is drawn to the ornate metal grilles, which can be seen at the entrance groups and part of the building's fence.

The first owner of the mansion was Nikolai Alexandrovich, who quickly won the trust and love of Muscovites. It is said that during his walks around the city, he always carried a small notebook with him. If any resident approached him with a request, he would write it down and try to fulfill it, being aware of everything happening in the city.

Nikolai Alexandrovich did much for Moscow. Under him, a water supply system was established, and with his personal funds, the Krestovskie water towers were built. He came from a wealthy family of gold-beaters and paid great attention to charity. At his initiative and with his personal involvement, the construction of a psychiatric hospital in Moscow began, now known as 'Kanatchikova Dacha.' Ironically, in March 1893, Alekseev was fatally wounded in his office by a mentally ill person.

After his death, the house on Leontievsky Lane passed to his wife, Alexandra Vladimirovna. Later, it was purchased by one of the largest factory owners from Vichuga, Ivan Alexandrovich Mindovsky. The mansion was then acquired by Shamsi Asadullaev and his heirs.

Currently, the building houses the UN representation and other international organizations.