Explore Rio Grande Valley Land Prime residential, commercial, and industrial plots available for your next big project. Discover unparalleled opportunities today. VIEW LISTINGS Build at The Heights at River bend II Prime residential lots available for builders. Create stunning homes in Brownsville's most desirable new community. VIEW AVAILABLE PROPERTIES Invest in Industrial Land Strategically located industrial plots perfect for logistics, warehousing, and manufacturing. Secure your future growth. VIEW AVAILABLE LOTS

Your Trusted Partner in Land Development

At Union Design Developers, we specialize in providing prime land opportunities across the Rio Grande Valley. Whether you’re a builder looking to construct stunning homes or a developer seeking the perfect plot for your next project, we offer a range of residential, commercial, and industrial lots to meet your needs.
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Rio Grande Valley Properties

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Residential Properties

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Industrial Properties

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Hidalgo County Properties

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Cameron County Properties

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Starr County Properties

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EXCELLENCE IN DEVELOPMENT

Experience unparalleled quality, innovation, and commitment in every project we undertake, setting new standards in the development industry.
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PRIME LOCATIONS

We offer strategically located plots that provide excellent opportunities for growth and development.
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DIVERSE PORTFOLIO

From residential to industrial, our diverse portfolio caters to various development needs.
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EXPERT SUPPORT

Our team of experts is dedicated to assisting you through every step of the sales process.
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PROVEN SUCCESS

With numerous successful projects, we are a trusted name in the Rio Grande Valley’s development landscape.

FEATURED PROJECTS

Discover our premier developments that showcase our commitment to quality, innovation, and community, offering unparalleled opportunities for builders and developers to create thriving residential, commercial, and industrial spaces.

FEATURED PROPERTIES

Discover our premier developments that showcase our commitment to quality, innovation, and community, offering unparalleled opportunities for builders and developers to create thriving residential, commercial, and industrial spaces.

El Americano Ranch

Discover ‘El Americano Ranch,’ a sprawling 1175-acre property in Rio Grande City, TX (Starr County). This expansive ranchland offers endless possibilities for agriculture, livestock, and recreation in a serene rural setting.

Industrial Plot on Military 1

Perfectly situated for various industrial uses. This prime location offers excellent accessibility and ample space for your business needs.

Blog and Resources

Building South Texas – How Union Design Developers is Shaping the Future

Union Design Developers has established itself as a leader in real estate development in South Texas, delivering projects that transform communities and drive economic growth. With a focus on residential, commercial, and industrial developments, we are committed to creating spaces that meet the diverse needs of homebuilders, businesses, and residents throughout the Rio Grande Valley.…

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“Mission is the Place to Be,” Luis Rodrigo Castillo Highlights Growth at Business Over Breakfast Event

Luis Rodrigo Castillo, attorney and land developer with Union Design Developers, recently headlined a distinguished panel at the Mission Economic Development Corporation’s “Business Over Breakfast” event. Held at the Center for Education and Economic Development (CEED), the gathering provided a platform for local entrepreneurs and business leaders to discuss the incredible opportunities fueling Mission’s economic…

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Contact Us

Address

4314 S Conway Ave
Mission, TX 78572

Phone

(956) 668-7031

Office Hours

Monday - Friday ………… 8:30 am – 5:30 pm
Saturday - Sunday ……… Closed