Certified Passive House Designer

Jörg Lengler

Dipl.-Ing. (FH) Architektur Architekt

keenco3 UG

Schellerdamm 16
21079 Hamburg
Germany

Phone: 040-30034749
info@keenco3.de
http://www.keenco3.de

Extension by building documentation

Certificate valid from March 11, 2015
Certificate valid until March 11, 2020
The certificate only applies to this person.
Photo of documentation
Download documentation Assessed by Passivhaus Institut

Complete list: Passive House Designers with building documentations


Initial by Exam

Certificate valid from Jan. 30, 2010
Certificate valid until Jan. 30, 2015
The certificate only applies to this person.

Examined by Energie- und Umweltzentrum Allgäu (eza!) at Kempten, Germany