Detailed Design – B’ Phase
ARCHITECTURAL DESIGN:
THEONI XANTHI XZA ARCHITECTS LLC
LEAD ARCHITECT:
THEONI XANTHI
ARCHITECTURAL STUDY COORDINATOR:
MARGARITA ZAKYNTHINOU-XANTHI
PROJECT TEAM:
G. LARIOS,
E. VELLIS,
V. THIVAIOU,
M.E. KROUSKOU,
R. PAPAIOANNOU,
K. BOULOUGOURIS
STRUCTURAL:
LIONTOS & CO. – TH. STATHOPOULOS
MEP DESIGN:
IT&KV E.E |A. KOTSOVOS
ACOUSTIC CONSULTANT:
THETA ACOUSTICS LTD| TH. NIAOUNAKIS
LIGHTING CONSULTANT:
IDU IKE | CH. THEODOROPOULOS
PLANTING CONSULTANT:
ECOSCAPES Ι.Κ.Ε. | A. SKORDILIS
SIGNANE CONSULTANT:
MPRATIS L.L.C. | I MPRATIS
QUANTITIES SURVEY:
GEORGE B. BERTCHATOS
The Marathon Cultural Center represents a project with a long design history, reflecting the continuous evolution of an architectural concept. The original design was developed between 2011 and 2013, reaching the stage of an advanced detailed design and establishing the foundations for the realization of a public building with a distinctive architectural identity at the site of the Start of the Athens Classic Marathon.
Following a private donation to the Municipality of Marathon, construction commenced in 2015 but remained incomplete due to insufficient funding. In 2025, the Municipality commissioned the update and revision of the construction documentation, bringing the project to full construction readiness. The revised design comprehensively resolved all architectural, functional, and technical aspects in close coordination with the structural and MEP engineering studies, while incorporating specialized landscape design, wayfinding, architectural lighting, and all other required technical infrastructure. At the same time, the building program was adapted to the Municipality’s current needs through the conversion of one exhibition hall into the Municipal Council Chamber.
The architectural composition remains faithful to its original concept: a linear building that emerges discreetly from the landscape, with the majority of its volume embedded within the natural terrain. This approach constitutes both a formal and a bioclimatic strategy, taking advantage of the earth’s thermal mass to enhance the building’s energy performance.
A defining feature of the project is its unconventional roofing system: a lightweight structure composed of glazed elements and multiple shading devices that functions as a contemporary pergola. This structure was extensively developed with regard to daylighting, solar protection, and the integrated management of rainwater, becoming an inseparable component of both the architectural expression and the technical resolution of the project.
At the heart of the complex lies the multipurpose hall, approached through a gradual descent that follows the natural topography of the site. The hall is surrounded by all necessary supporting facilities, while the redesigned café organizes a sequence of indoor, semi-open, and outdoor spaces, strengthening the relationship between the building, the landscape, and public life.
The administrative offices are organized within a denser structural grid, interrupted by planted courtyards that provide natural daylight, cross-ventilation, and continuous visual connections to greenery. The completion of the construction documentation revealed the project’s technical complexity and transformed a mature architectural vision into a fully buildable public building, while preserving the original ambition of achieving a harmonious integration of architecture, landscape, and climate.