Nota de Prensa —
ATDI and Caledonian join forces to lead the evolution of Luxury residential living
The first project will be The St. Regis Residences, Casares, Costa del Sol
Investment expected to exceed 120 million euros

Atitlan Desarrollos Inmobiliarios (ATDI) and Caledonian, a leading developer in the high-end residential and unique real estate segment, have formalized a partnership to create an ambitious real estate division, with its first project being The St. Regis Residences – Casares – Costa del Sol.
Located within Finca Cortesin — recognized as one of the 50 best hotels in the world — the residences are being developed in collaboration with global hospitality leader Marriott International under the company’s renowned St. Regis brand, highlighting both the uniqueness of the location and the strength of the teams involved.
This agreement marks ATDI’s first entry into the “branded residences” segment, a category that is rapidly gaining traction in the Spanish real estate market. For the residences, Caledonian had already secured the involvement of the U.S.-based real estate investment fund Harbert Management Corporation (HMC).
According to Agustín Pérez, CEO of ATDI:
“We are delighted to enter a sector with great growth potential in Spain, alongside a highly experienced developer and one of the most globally recognized brands.”
Enrique López Sastre, Sales & Marketing Director of Caledonian, adds:
“This alliance with ATDI not only reinforces our commitment to excellence, but also marks the beginning of a long-term and ambitious collaboration. The St. Regis Residences, Casares, Costa del Sol is the first of many projects we aim to develop together, with the goal of establishing a new product category in the market.”
A UNIQUE PROJECT
The St. Regis Residences, Casares, Costa del Sol will feature 46 spacious open-plan units, where a typical living room alone spans 90 m². The development also includes a 1,200 m² amenities building with a bar, lounges, library, full spa with indoor pool, gym, cinema, and more. One of the standout features of the project is the inclusion of the signature St. Regis Butler Service, making exquisite every residence owner’s lifestyle by going beyond expectations to curate personalized services.
To bring this branded residence to life, Caledonian has brought together world-renowned professionals such as architects Marcio Kogan and Suzana Glogowski (Studio MK27), interior designer Lázaro Rosa-Violán, and landscape architect Isabel Duprat.
Construction began in March, 2025, and the project will consist of nine buildings delivered in two phases. The first phase — comprising four residential buildings and the amenities building — is expected to be completed by the last quarter of 2027, with the second phase to follow in the second quarter of 2029. The total investment for both phases is expected to exceed 120 million euros.
The Residences in Costa del Sol mark Marriott’s expansion of its industry-leading branded residential portfolio. The residences have already generated significant interest, with 25% of the 46 residences sold since the Sales Gallery opened in April.
The agreement between ATDI and Caledonian lays the foundation for a strategic partnership aimed at redefining the concept of prime residential living in Spain — combining innovation, design, and operational excellence.
About ADTI
Atitlan Desarrollos Inmobiliarios (ATDI) is the real estate platform of the Atitlan Group. Its positioning in the sector spans the entire value chain — from land transformation to the development of various asset types (living, logistics, residential, commercial) — always with a long-term vision and a clear value proposition for the market.
More information:
www.atdi-grupo.com
+34 963 53 63 14
prensa@atitlangrupo.com
About CALEDONIAN
CALEDONIAN is a Spanish developer, builder, and real estate firm recognized as a leader in the high-end residential segment. Founded with the aim of redefining industry standards, it has built a track record focused on exclusive design and the continuous pursuit of pioneering architectural solutions, with a strong commitment to sustainability, energy efficiency, and technological innovation.
With a comprehensive model that covers every stage from concept to execution, CALEDONIAN stands out for working with top-tier international teams, bringing an artistic, personalized, and distinctive approach to each development — a vision that has been recognized with numerous international awards.
More information:
www.caledonian.es
Noho Comunicación
Hugo Fraile – +34 617 155 466
hfraile@vopress.es