
Diamond Developments is a San Juan del Sur–based real estate development and construction company founded by Michael and Rosemarie Cooney. They specialize in transforming raw land into premium tropical communities and building modern luxury homes for those who want to live or invest in Nicaragua’s Pacific paradise.
Michael & Rosemarie have been living in San Juan Del Sur since 2011. Michael is originally from Ireland and Rosemarie is originally from Botswana. They currently reside in one of their developemtns with their 12 year old daughter.
Michaels background in engineering and project management ensures every project is executed with precision and durability, while Rosemarie brings expertise in operations, design coordination and hospitality. Together they have developed multiple residential communities and homes, combining thoughtful design, quality construction, and a deep understanding of the local market.
Founded on experience in engineering, construction, and real estate development, Diamond Developments has delivered projects that blend international building standards with Nicaragua’s unique landscape. From boutique developments to large master-planned communities, our mission is to raise the standard of coastal living.

Every project begins with a vision - for how people will live, connect and thrive. We guide Clients’s through inspired planning and thoughtful architectural choices.

From roads and retaining walls to utilities and custom finishes, we handle every stage of construction process with precision and transparency.

We create lasting homes and communities, tailored for tropical living and crafted for long-term value and lifestyle appeal.
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We strive for excellence in everything we do. From the moment you walk through our doors, we are committed to delivering unparalleled service.
We recognize that luxury real estate is not a one-size-fits-all endeavor. Each client we serve is unique, with their own desires, dreams, and aspirations.
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