Edificio Ariztía, Commercial structure in Barrio La Bolsa, Chile.

Edificio Ariztía is a building on Nueva York Street in downtown Santiago with reinforced concrete construction and functional early 1900s design. The interior is divided into office spaces, with the ground floor left open for business use.

The building was completed in 1921 as Chile sought to modernize after World War I, marking a turning point in Santiago's urban architecture. Shortly after its completion, it helped define the character of the financial district where commercial and office spaces mixed together.

The building's name comes from the Ariztía family, and its wedge shape follows the 1907 subdivision of the old Convento de las Agustinas land, which created the Y-shaped street layout. In 1923 the top floor housed the studios and transmitter of Radio Chilena, the country's first commercial radio station. Today the seventh floor holds the First and Second Tax and Customs Tribunals of the Metropolitan Region.

The building is located in a central business district and can be easily reached by public transportation, as it sits near multiple bus lines and transit stops. Pedestrians will find a dense street network that makes access straightforward.

It was the first building of its kind in Chile to be equipped with a modern elevator system, a technical innovation that barely existed elsewhere at the time. This feature made it incredibly practical for office workers and business people to reach multiple floors quickly.