The Casa de Contratación Was Never in This Building

The long stone and brick block on the Avenida de la Constitución is the first stop of our Cathedral, Giralda and Alcazar: Nobody Here Started From Nothing walk, and it is the building most often described in Seville as the old Casa de Contratación. It was not. The institution never worked here. Getting that straight is worth a few minutes before you stand in front of it, because the real sequence is better than the tidy version.

Where the Casa actually worked

On the twentieth of January, 1503, Fernando the Second of Aragon and Isabel the First of Castile signed the royal decree founding the Casa de Contratación de las Indias. Its rooms were inside the Real Alcázar, in the Cuarto del Almirante, the Admiral's Quarter. Its first organizer was Juan Rodríguez de Fonseca, Isabel's chaplain and the crown's overseer of Columbus's expeditions.

From there the Casa did four things at once: it registered every ship crossing to or from the Spanish Americas, collected the customs and the royal fifth on all silver and gold, certified the pilots of the annual fleet, and built the documentary record of all of it. It ran for 214 years, and then it left. In 1717 the trade and the institution moved to Cádiz. If you want the larger frame before you walk, our thesis piece on the port that monopolized the New World sets out why an inland river town became the door to an ocean.

Two hundred metres separate the Alcázar wall from the building on the Plaza del Triunfo. That short distance is the whole reason the two get confused.

What the building was built for

Not administration. Shopping, in the wholesale sense. Seville's merchants had no exchange, so they did their deals on the cathedral steps, and when it rained they carried on inside the orange courtyard and the church itself. The chapter excommunicated them, which made no difference at all, so the chapter asked the king for somewhere else to put them. The Casa Lonja de Mercaderes is that somewhere else, and it stands at one end of a walk whose last stop is the cathedral door the merchants were thrown out of.

The merchants paid for it themselves. The funding was a tax of one third of one per cent on every item loaded or unloaded in the port of Seville, with the King's own cargo excepted. Juan de Herrera, the architect of the Escorial, drew the design and never ran the works. Building began in 1583 and finished in 1654, which is worth stating plainly because the date is widely misprinted: the city's own catalogue sheet says it was completed in 1654 and not 1598 as many sources cite. Six men directed the site in succession over those seventy-one years, and one of them, Miguel de Zumárraga, vaulted the upper floor in stone rather than roofing it in timber, on the reasoning that timber is heavier and timber burns.

The sixty-eight years nobody mentions

Here is the gap the tidy version skips. The trade left in 1717. The exchange emptied. Families moved into the rooms, and the building spent decades as housing. What Carlos the Third converted into an archive in 1785 was, by then, a tenement.

So the sequence runs: an exchange built for merchants who were evicted from a church, emptied by a customs decision, lived in as apartments, and only then filled with the paper record of an empire that had already moved its offices to another city. It now holds roughly 43,000 volumes, about 80 million pages, on some nine kilometres of shelving, inscribed by UNESCO together with the cathedral and the Alcázar in 1987.

The stone vault Zumárraga insisted on is the reason that is still true. The building that was not built for the archive turned out to be the right building for it.

How to walk it

The Archivo opens as the first stop of a ten stop, 1.6 km walk of about ninety minutes, and every stop on that route is a public street or square with nothing to book. The building itself can also be visited free of the walk, though its exhibition hall keeps limited hours and closes on Mondays, and access is sometimes capped by capacity. The main door has steps; the step-free entrance is on the Plaza del Triunfo side.

The tour is free to start in the Roamer app, where the introduction and first stop play in full and every later stop plays a short preview. For the human counterweight to all this crown machinery, cross the bridge afterward into Triana, where flamenco was born. And if you are choosing between routes, compare them on our guide to the best walking tours in Seville.