NEW designPH version 2.0 is here!

image credit: Monash University, Gillies Hall, Melbourne, AU. Arch: Jackson Clements Burrows © grunconsulting. Rendering by PHI

Click here to see a summary of the exciting new features!

Online purchase available now from

What makes designPH so unique ?

designPH is a plugin for the popular 3D design software SketchUp.

designPH is the new, interactive and graphically oriented input interface for PHPP.

designPH has been developed by the  Passive House Institute to provide a 3D modelling interface that works together with PHPP (Passive House Planning Package).

designPH gives quick results using automatic analysis... The plugin provides an automatic analysis algorithm which can infer element types and area groups. Surfaces are given a colour-code so that it is possible to visually verify in the 3D model that all the heat-loss surfaces have been correctly taken into account. 

designPH is a 3D interface for PHPP...  After importing a model to PHPP, the primary inputs on the Areas, Windows & Shading sheets will be mostly complete. This enables a result for specific space heat demand to be calculated quickly using default values, potentially saving significant time.

designPH is an iterative design tool... designPH also provides a preliminary simplified energy balance when the analysis process runs. This allows you to refine the design before exporting, facilitating a more effective iterative design process, and rule out poorly performing design options early on.


designPH facilitates the preliminary designing and energetically optimized design in only 4 steps:

  1.   put your project into the virtual space - create your SketchUp 3D model or 
use with minor adaptations an already existing

  2.   put your project at the right place - you choose the location of your project
        directly in SketchUp and the relating climate out of a database in

  3.   put your project into the right light - consider and check your specifications
        and prepare it for your custumer

  4.   check your project on PH suitability - with the 3-click export to PHPP
        you get immediately reliable results

... start now with the optimization process in designPH and refine the project directly in PHPP.