Latest / Nero: Mad Tyrant or Misunderstood Emperor? — Fexingo History / Nero's Urban Reforms: The Fire Code That Changed Rome
Transcript
- Lucas: So we've talked a lot about Nero and the Great Fire — whether he started it, how he scapegoated the Christians, all that. But one thing that often gets overlooked is what he actually did afterwards, in terms of rebuilding the city. Luna: I think most people assume he just built his Golden House and ignored the rest. Lucas: Right, and that's partly what the ancient sources want you to think — Tacitus and Suetonius both dwell on the Domus Aurea as this symbol of Nero's extravagance. But if you read Tacitus more carefully, in Annals book 15, he actually describes a comprehensive building code that Nero pushed through the Senate. It's called the lex de modo aedificiorum — the law on the manner of buildings. Luna: Wait, a building code? In first-century Rome? Lucas: Exactly. And it was surprisingly modern. After the fire, Nero wanted to prevent future conflagrations from spreading so easily. So the new regulations required that party walls between buildings be made of stone — no more wooden partition walls. They also mandated that buildings have a certain amount of open space around them, and that streets be widened to act as firebreaks. Porticoes were to be built along the fronts of insulae — those apartment blocks — to provide sheltered walkways and also to facilitate firefighting access. Luna: So he essentially redesigned the city's layout? Lucas: To a degree. The new streets were laid out in a more orderly grid pattern, rather than the chaotic warren that had existed before. Tacitus says Nero even offered to cover the cost of rebuilding from his own funds, though there was a limit. He also established a new fire brigade — the vigiles had existed since Augustus, but Nero expanded their powers and put a praefectus vigilum in charge, a dedicated prefect for firefighting. The idea was that if a fire broke out, it could be contained much faster. Luna: So this was actually pretty progressive urban planning. Lucas: It was. And the interesting thing is that these reforms were not just about fire safety — they also addressed the chronic problem of building collapses. Roman insulae were notoriously shoddily built, sometimes rising six or seven stories without proper foundations. Nero's code imposed height limits — Tacitus says 70 feet, which is about 20 meters — and required that builders use fireproof materials like brick and concrete, not just timber. The state also cracked down on landlords who cut corners. Luna: Did it actually work? I mean, did Rome become safer? Lucas: For a while, yes. The new building standards definitely reduced the risk of both fire and collapse. Cassius Dio, writing a century later, notes that Nero's rebuilding made the city more beautiful and more functional. But the reforms were also controversial — partly because they disrupted property rights. Landowners whose tenements were destroyed had to rebuild according to the new standards, which was more expensive. And Tacitus, ever skeptical of Nero, implies that the emperor's generosity was a PR stunt to deflect blame for the fire. Luna: So what does the archaeological record show? Can we see this in the ruins? Lucas: That's where it gets tricky. Very little of Nero's rebuilt city survives — the Domus Aurea was largely obliterated by later emperors, and the insulae were replaced over centuries. But we do have some evidence. For instance, the famous insula at Ostia, the Casa di Diana, dates from the early 2nd century and shows the kind of brick-faced concrete construction that became standard after Nero's code. Also, the porticoes along the Via Lata and other major streets may have originated with Nero's plan. Luna: So even if his motives were cynical, the reforms had lasting impact. Lucas: Absolutely. And that's part of the broader paradox of Nero. On one hand, you have the tyrant who murdered his mother and persecuted Christians. On the other, you have an administrator who actually addressed a genuine urban crisis with practical legislation. The lex de modo aedificiorum influenced later Roman building codes, and even the emperor Trajan's building projects seem to echo some of Nero's innovations. Luna: I never learned any of this in school. It's always just 'Nero fiddled while Rome burned.' Lucas: Exactly — that phrase is totally anachronistic, by the way. The cithara wasn't a fiddle, and he wasn't literally playing while the city burned. But the myth is powerful precisely because it's so vivid. The reality is more complex. And that complexity is what we try to get at in these conversations — showing the full picture, not just the caricature. Luna: Speaking of which, I'm always amazed that we can have these deep dives without any ads. It really makes a difference. Lucas: It does. And that's only possible because of listeners who support the show directly. If you've been getting something out of these conversations — about Nero's building code, or the Pisonian conspiracy, or whatever — a couple of dollars a month is genuinely what keeps these going. It's buy me a coffee dot com slash fexingo. Luna: Yeah, every little bit helps us keep doing the research and making the show ad-free. Thanks to anyone who's already chipped in. Lucas: Alright, so back to the building code — one more detail I find fascinating. Nero also stipulated that the new porticoes should be built with flat roofs so that firefighters could use them as platforms. And those porticoes were often colonnaded, which gave the streets a more monumental appearance. The poet Martial later praised the porticoes of Rome, and they probably date back to this period. Luna: So Nero basically invented the Roman shopping arcade? Lucas: In a way, yes. The porticoes became commercial spaces, with shops and taverns under the colonnades. That model persisted throughout the empire. So Nero's building code wasn't just about safety — it shaped the urban fabric of Rome for centuries. And that's a legacy worth remembering, even if the man himself remains controversial. Luna: It's a good reminder that history isn't black and white. Lucas: Exactly. And speaking of complexity, next time we'll look at another side of Nero that often gets overshadowed — his foreign policy, specifically the war with Parthia over Armenia, and how he managed to secure a diplomatic victory without a major battle. That's a story that really shows his strategic side. Luna: Looking forward to it.