Who built the pantheon in rome

The Pantheon is one of the most iconic landmarks in Rome, known for its massive dome and nearly perfect preservation. But one of the most common questions visitors ask is: who actually built the Pantheon?

The answer is more complex than it seems. While one name appears on the building, the Pantheon we see today was actually constructed by a different ruler.

This guide explains clearly who built the Pantheon in Rome, how it was rebuilt, and why there is still confusion about its origins.


The original builder: Marcus Agrippa

The first Pantheon was built around 27–25 BC by Marcus Agrippa.

Agrippa was:

  • A Roman general
  • A close friend of Emperor Augustus
  • One of the most powerful figures in early imperial Rome

He commissioned the original Pantheon as part of a larger building program in Rome.

This early structure was:

  • A temple dedicated to Roman gods
  • Likely very different in design from the current building

However, this original Pantheon did not survive.


Destruction of the original Pantheon

The first Pantheon built by Agrippa was destroyed by fire.

It was later rebuilt, but again suffered damage over time.

Eventually, the structure was completely replaced.

This leads to an important point:

👉 The Pantheon you see today is not the one built by Agrippa.


The current builder: Emperor Hadrian

The Pantheon standing today was constructed around 118–126 AD by Hadrian.

Hadrian was one of Rome’s most influential emperors and was known for his interest in architecture and design.

Under his direction, the Pantheon was:

  • Completely rebuilt
  • Redesigned with a revolutionary structure
  • Constructed using advanced engineering techniques

This version is the one that has survived for nearly 2,000 years.


Why does the Pantheon still credit Agrippa?

If Hadrian built the current Pantheon, why does the building still carry Agrippa’s name?

On the front of the building, you can read the inscription:

“M·AGRIPPA·L·F·COS·TERTIVM·FECIT”

This translates to:

👉 “Marcus Agrippa, son of Lucius, made this building when consul for the third time”

This has confused visitors for centuries.

The reason is that Hadrian chose to honor Agrippa by keeping the original inscription, even though the structure was entirely rebuilt.


Why Hadrian rebuilt the Pantheon

Hadrian didn’t just rebuild the Pantheon—he transformed it into something completely unique.

His goals likely included:

  • Creating a grand temple to all gods
  • Demonstrating Roman engineering power
  • Building a structure that symbolized the empire

The result was one of the most advanced buildings of the ancient world.


The architects and engineers behind it

While Hadrian ordered the construction, the actual design and building work were carried out by Roman architects and engineers.

Their innovations included:

  • The massive concrete dome
  • Perfect geometric proportions
  • The use of lighter materials toward the top of the dome

These techniques allowed the Pantheon to remain standing for nearly 2,000 years.


A collaboration across time

So who built the Pantheon?

The most accurate answer is:

  • Marcus Agrippa → built the original Pantheon
  • Emperor Hadrian → built the current Pantheon

The monument is the result of both men’s contributions.


Why the Pantheon still stands today

The Pantheon’s survival is not just due to who built it, but also how it was used.

In 609 AD, it was converted into a Christian church, which helped preserve it.

Because of this:

  • It was maintained over centuries
  • It avoided destruction
  • It remained in continuous use

This is why it is still one of the best-preserved ancient buildings in the world.


What visitors should know today

When you visit the Pantheon, you are seeing:

  • A building designed under Emperor Hadrian
  • A structure that honors Marcus Agrippa
  • A masterpiece of Roman engineering

Understanding this history adds depth to your visit.


A story of two builders

The Pantheon is not the work of just one person—it is the result of two key figures in Roman history.

Agrippa started the story, and Hadrian completed it in a way that changed architecture forever.

This combination of history, power, and innovation is what makes the Pantheon one of the most fascinating landmarks in Rome—and one of the most important buildings ever constructed.