Catella: Affordable and Sustainable Housing in Haarlem

Catella Investment Management’s Haarlem project in the Netherlands transformed an obsolete office into 162 high-performance rental apartments, achieving an A+++ energy label and cutting embodied carbon through reuse of the existing concrete structure. Heated with geothermal energy and powered by over 50% renewables, the building combines 15% social, 40% affordable and 45% non-regulated units. Residents benefit from shared amenities including a gym, lounge and laundry facilities that foster community and reduce resource use. The project demonstrates how environmental excellence and social impact can be balanced within a commercially viable investment model.