It is a three-storey building topped by a brick section housing a clock and bell, which emphasises the building's vertical line. On the eastern side of the same Plaza de la Constitución, further up from the parish church, stands the new Town Hall. Also a regionalist-style building with an elongated layout, its ground floor opens onto a portico of three semicircular arches through which it is accessed, and its main façade is topped by a stone bell gable bearing the municipality's coat of arms.

It consists of a ground floor and two upper sections, with lintelled openings — those on the upper floors being balconies — arranged along a central axis and set between attached pillars. The ensemble is topped by a clock section, crowned by a bell that emphasises its vertical line.

Opposite the church entrance, on higher ground, in the most representative space of the municipality, the Plaza de la Constitución, stands the Town Hall — a simple, functional building with an elongated layout, recently refurbished, dominated by exposed brick across its two sections, with an irregular, asymmetrical arrangement of openings, a stone coat of arms of the town featuring the imperial double-headed eagle as its heraldic emblem, and topped by a small pediment with a clock and bell, on whose iron structure the date 1933 appears.

Dating from the first half of the 20th century, it is one of the oldest flour mills in the province. It was a key facility for the municipality's economy during the post-war years. In 2004, it was listed in the General Catalogue of Andalusian Historical Heritage as a site of ethnological interest.

The Hacienda del Pilar, which takes its name from the image of the Virgin under this title placed on its façade, was built from 1904 onwards as a working farm estate and later remodelled into a private noble residence for receiving dignitaries. Owned by José del Prado y Palacio, former Minister of Public Instruction and Marquis of Rincón de San Ildefonso, it hosted Alfonso XIII during his visit to Jaén in 1916. It was approached through carefully tended English-style gardens with a monumental fountain at their centre and another, in Seville style, to one side. The façade, with two columned galleries — one of them glazed — featured wooden columns and finely worked ironwork, all in a markedly eclectic style. Inside, this eclecticism continued with an element of special interest: a Renaissance courtyard belonging to a palace in Andújar, demolished in the second decade of the century and acquired and transferred to El Pilar by its owner. Nine slender columns, eight arches with cushioned coffering, spandrels, medallions and noble coats of arms were removed from their original building and brought here, along with a fountain with a wide basin, four shells and two bowls, decorated with caryatids. The building also had spacious rooms, a small theatre and a hall with fine furnishings.