Contact us


Product information

For information on ordering and buying designPH please see the Product details page, or

  Buy designPH -- get it here  

Technical Support

If you are a designPH owner and need technical support, please login to access the resources in the members area. We have a new version of the support request form on the platform.


I forgot my password

Your password for this site ( is your software (PHPP) registration code.

 I forgot my licence details: 

  • If you bought designPH as a package with or upgrade to PHPP, this will be your PHPP registration code, found in your PHPP handbook on page 3.
  • If you are a designPH 2.0 customer, please check your emails for "PHI Software Licence Information", or login to your account and check at

Passive House Institute
Department Innsbruck
Anichstr. 29
6020 Innsbruck

Tel.: +43 (0) 512/570768


Passive House Institute
Rheinstr. 44/46
64283 Darmstadt

Tel.: +49 (0) 6151/82699-0