La Unión y el Fénix building, Madrid, Insurance company headquarters on Paseo de la Castellana, Madrid, Spain

La Unión y el Fénix stands at 33 Paseo de la Castellana, built between 1966 and 1971 to plans by Luis Gutiérrez Soto. Its roughly 28,000 m² are split between a low block facing the avenue and a 19-storey tower with a black facade, crowned by the insurance company's sculptural symbol. Frescoes by Joaquín Vaquero Turcios decorate the interior.

Luis Gutiérrez Soto designed the building in 1965, and construction ran from 1966 to 1971 at number 33 of the Paseo de la Castellana. It was built as the headquarters of the insurance company La Unión y el Fénix, whose symbolic sculpture crowns the 19-storey tower. The interiors were later decorated with frescoes by Joaquín Vaquero Turcios. The building now belongs to the insurer Mutua Madrileña, which uses it as its main seat.

The black facade of the tower carries the sculpture of the phoenix that crowned the insurance company La Unión y el Fénix, the firm that commissioned the project. Inside, the rooms are decorated with frescoes by Joaquín Vaquero Turcios, a detail a visitor can look for in the interior spaces.

The building occupies the block between Paseo de la Castellana 33 and a small rear street, so its two faces differ sharply: a 19-storey black tower toward the boulevard, a lower body behind. The entrance fronts the Castellana, and the dense trees around the base partly screen the lower floors. Visitors can see the crowning sculpture best from across the avenue.

The black 19-storey tower is topped by a sculpture of the phoenix, the emblem of the insurance company La Unión y el Fénix that commissioned the project. The building has around 28,000 m² of floor area and is owned by and serves as the main headquarters of the insurer Mutua Madrileña.