OUR HISTORY
CALEN ATEE was established in 1993 by a group of young professionals in the fields of design and construction. The founding member and CEO of the company is Andreas I. Alexandropoulos, a Civil Engineer from the National Technical University of Athens (NTUA).
CALEN primarily specializes in the design and construction of contemporary residential and commercial buildings. The company fully undertakes, with its own skilled team, architectural design, as well as the associated structural and mechanical engineering studies. It employs both traditional and cutting-edge technologies to ensure the precise execution of designs and flawless implementation of every technical detail.
CALEN views housing as an entity designed to serve the needs of people, to help them improve their quality of life, and to inspire them to dream, by leaving the personal ambitions of the constructor in the background. This philosophy has now become a guiding principle for all of us
.What we do
- Design
- Project Management
- Construction
- Civil Engineering

Client is the soul of the project
Our team handles every aspect of each project, from the initial concept development to its final implementation. We believe in the value of traditions and creatively integrate them into our innovations. Each of our projects is defined by a unique artistic approach, as well as solutions that serve practical purposes. The client is the soul of every project. Our main goal is to capture their values and individuality through design
Finished projects
INDICATIVE PROJECT CATALOG OF
CALEN Α.Τ.Ε.Ε.
2024
DIAKOFTI (G2) - KYTHERA ISLAND
Complex of 8 Residential Units (G2)
2024
DIAKOFTI (Υ3) - KYTHERA ISLAND
Complex of 5 Residential Units (Υ3)
2024
HYDROUSA - ANDROS ISLAND
Subterranean Residential Unit with Swimming Pool
2023
CHILIADOU EVIA - EVIA
Luxury homes
2017
PHILOTHEI -
Luxury homes
2015
R.MELODOU 11-13 - LYKABETTUS
Residential Complex
2014
MISTHOU 7 - KARAVEL SQUARE
Apartment buildings
2014
PALAIO PSIXCHICO -
Luxury homes
2013
SIKELIANOU 13 - NEO PSYCHIKO
Residential Building
2010
Vasilissis Sofias -
Offices
2010
MELISSOU 5-7 - PAGRATI
Residential Building
2009
KALVOU 161 - GYZI
Residential Building
2009
DODEKANISOU 45 - PETROUPOLI
Residential Building
2007
PANAGI KIRIACOU 13 - AMERICAN EMBASSY
Residential Building
2005
VYRENIKIS 13-15 - PALAIO PSYCHIKO
Complex of Luxury Residential Units
2005
KOUVARAS ATTICA - ATTICA
Maisonette Complex
2004
KOUMANOUDI 48 - GYZI
Residential Building
2003
PALIGGENESIAS 2 & DASKALOYANNE 17 - LYKABETTUS
Residential Building
2003
PALIGGENESIAS 27 & LIVYNI 1 - LYKABETTUS
Residential Building
2001
ALYOS 3 - HILTON
Residential Building
2001
SARANTAPICHOU 53 - LYKABETTUS
Residential Building
1998
KOSMA MELODOY 22 & ROMANOU MELODOY 11-13 - LYKABETTUS
Apartment buildings
1998
KOSMA MELODOY 20 - LYKABETTUS
Residential Building