Santo Domingo is the original grid.

01 The hurricane that moved the city

The settlement was founded on 5 August 1496 on the eastern bank of the Ozama River, under the name La Nueva Isabela. It did not last: in June 1502 a hurricane flattened what had been built and left the decision to the newly arrived governor, Nicolás de Ovando.

Ovando did not rebuild where it stood. He moved the city to the western bank, higher and easier to defend, and took the chance to do something barely done in Europe: design the whole plan before raising anything.

02 Rule and compass

The instruction was literally that: to lay out the city with rule and compass. Straight streets crossing at right angles, rectangular blocks of similar size, a main square as the point of origin and plots distributed in advance.

It sounds obvious today, but it was not. The Spanish cities those colonists came from were organic, grown by accumulation over centuries. Here, for the first time, a city’s shape was decided before the city existed.

03 A template that travelled

The expeditions that later founded half of the Americas set out from Santo Domingo, and the plan went with them. The grid around a main square was repeated in city after city, and decades later it was codified as administrative rule for the whole empire.

That is why walking here produces an odd sense of recognition: if you know any historic centre in Spanish America, you already know this one’s logic. The difference is that this was the first, and the Colonial City has been World Heritage since 1990 precisely for that.

04 What is inside

Inside the grid stands the first generation of European buildings on the continent, almost all built in coral limestone quarried from the coast itself: the fortress above the river, the palace of the Columbus family beside the square, the one- and two-storey mansions with inner courtyards.

The material gives the whole ensemble a uniform colour, between sand and grey, broken only by the paint of later houses. And it explains a visual peculiarity: get close to a wall and you see it is full of holes. It is fossil coral, and it shows.

05 The city of four million

Do not mistake the part for the whole. The Colonial City is a small rectangle; around it lies Greater Santo Domingo, with 4.27 million inhabitants in the 2022 census, of whom a little over a million live in the Distrito Nacional.

That modern city is organised differently: long avenues, the Malecón running along the entire seafront and neighbourhoods that grew without a template. The contrast between the two scales is, in practical terms, the experience of being here.

06 The afterimage

Santo Domingo is remembered for a pleasant contradiction: it is at once the continent’s oldest historic centre and a loud, hot, distinctly unmuseum-like Caribbean capital. Sixteenth-century stone coexists with traffic, music and street business.

And the fact that orders it all remains: you are walking a plan drawn once, more than five hundred years ago, which then became the normal way of making a city on this side of the world.