Sibylla Hartel


Sibylla is passionate about creating distinctive, beautiful and robust landscapes, and is engaged in the daily running of the practice, managing a wide range of complex projects and teams from inception to completion. 

Since joining Gustafson Porter + Bowman in 2000, Sibylla has worked on projects including HM Treasury Courtyards, CityLife Park in Milan and has managed the team which designed the award-winning Swiss Cottage Open Space in Camden. She is currently working on the design and implementation of Taikoo Place in Hong Kong, Seef Lusail in Doha, Buckingham Green in London and integrating a hotel into the Cultuurpark Westergasfabriek site in Amsterdam.

Sibylla’s work harnesses a wide range of different geographical regions and she has an extensive botanical knowledge which supports planting programmes in some of the most challenging climates. This work includes natural habitat restoration, planting on polluted soils, urban woodland creation and complex urban planting schemes.  

Sibylla grew up in Germany and studied landscape architecture at Greenwich University in London, subsequently working at practices in Berlin and London. She became an Associate Partner in 2007, and a Partner in 2014.