Jade Small
Jade Small
November 19, 2024 ·  4 min read

The world sees invasive seaweed. This gardener sees housing bricks.

In the picturesque coastal areas of Mexico’s Yucatán Peninsula, sargassum seaweed is often seen as a nuisance. Piling up on beaches, emitting a foul odor, and spoiling the crystal-clear waters of the Caribbean, it’s hard to imagine it as anything other than a problem. However, one man has turned this invasive seaweed into a solution, using it to create construction blocks and even affordable housing for those in need.

From Seaweed to Construction Materials

Omar de Jesús Vazquez Sánchez, the founder of Sargablock, a company based in Mexico, sees something unique in the seemingly endless piles of sargassum that wash ashore. While many complain about the seaweed’s unpleasant smell and its overwhelming presence, Vazquez viewed it as a challenge to turn a negative into a positive. In 2018, he began developing a way to transform sargassum into building materials, and soon, he was using the seaweed to create durable, eco-friendly blocks for construction.

Vazquez’s project began as a response to the growing piles of seaweed that were overwhelming beaches from Mexico to Florida. Over the years, the influx of sargassum has increased significantly, with record amounts of seaweed washing ashore, often months earlier than expected. While the situation is alarming for the tourism industry, Vazquez saw an opportunity for innovation.

Transforming a Problem into Progress

The concept behind Sargablock is simple: combine sargassum with organic materials like clay to create building blocks. These blocks are then formed in a machine and left to dry in the sun. Vazquez’s work is gaining international attention, especially for its environmental impact. The United Nations Development Program (UNDP) recognized his innovative approach, selecting Sargablock for its Accelerator Lab, which highlights creative solutions to global sustainability challenges.

Vazquez has already used thousands of tons of sargassum in his blocks. In 2021 alone, he used 3,000 tons of the seaweed, turning it into sturdy construction materials for local homes. The idea is catching on, as studies show that building materials made with organic content like sargassum can last for up to 120 years. This not only provides a solution to the seaweed invasion but also promotes sustainable construction practices.

A Personal Journey to Giving Back

Omar Vazquez’s journey to this point was not without hardship. Growing up in poverty, surrounded by the beauty of nature, he learned to make the most of what he had. As a child, he sang for spare change and later worked alongside his single mother in California, picking grapes as an unauthorized immigrant. His return to Mexico took nearly 30 years, but once he settled, he focused on his true passion: gardening.

Despite the difficulties, Vazquez never gave up. He invested his last $55 into creating a small nursery, which eventually led him to a new business venture. His background in overcoming personal struggles, including addiction and homelessness, inspired him to give back to his community.

Building Homes with Heart

Vazquez’s innovative approach to sargassum didn’t just stop at creating construction blocks. He wanted to ensure that the benefits of his work extended to those who needed it most. Through his company, Sargablock, he built homes for vulnerable families, including single mothers, elderly couples, and parents with children who have disabilities. His dream of giving back to the community was realized when he created “Casas Angelitas,” named in honor of his late mother, who never had a home of her own.

One of the recipients of a Sargablock home, Elizabeth Del Carmen Bonolla Lopéz, a local woman who was injured in a car accident, was deeply touched by Vazquez’s generosity. She had been living in a makeshift shelter before moving into her new two-bedroom home. She praised Vazquez for his selfless act and noted how he understood the hardships of growing up without a home.

A Sustainable Future for Communities

For Vazquez, the ultimate goal is not just to create building materials, but to provide a sustainable solution for people who need it most. As he continues to develop his Sargablock business, he remains committed to creating homes for those who might otherwise be overlooked. His personal journey, from overcoming his own challenges to giving back to his community, reflects the true spirit of resilience.

The Bottom Line

Now, when Vazquez looks at piles of sargassum, he doesn’t see a pest. He sees an opportunity to transform lives, one block at a time. His work proves that even the most unwanted resources can be turned into something positive, showing us all that sustainability begins with creative thinking and a willingness to see the potential in what others overlook.

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