It is difficult to know how the city of Lavo was arranged because the modern city of Lopburi is situated on top of the old city. Some believe that once the Khmers began to rule Lavo, they made the town look similar to their own capital city of Angkor. It may, therefore, have had a square shape, with walls made from laterite, gated entrances, a large template situated in the middle of town, and a moat located outside of the city walls. While the city plan of Lavo is uncertain, we know much more about the architecture of Lavo, as some buildings still exist today.

Lavo architecture in the time that it was under Khmer control was a mixture of Khmer and Dvaravati styles. Their temple had both Dvaravati style square, layered, chedis, and also the corn-cob shaped Khmer style prangs. In Lavo, like in the rest of the Khmer Empire, sandstone, laterite, and bricks were combined to build temples. However, in the provinces, laterite was used more often than in Angkor, because it was cheaper than sandstone. Like in Angkor, in Lavo and in other Khmer provinces, beautiful scenes of daily life, as well as scenes from stories like the Ramayana, were carved into sandstone reliefs which decorated temples.