DesignPH is a ‘plugin’ for Trimble or Google SketchUp, therefore you must have SketchUp installed on your computer first before you can install DesignPH. The plugin has been developed on SketchUp version 8, so should work on these or later versions. It is being developed and tested on both Mac OS X and Windows to ensure cross-platform compatibility. It will have some functionality available on earlier versions of SketchUp, but this may be unpredictable. The developers do not plan to provide support for SketchUp versions earlier than v8.

You can download the latest version of Trimble SketchUp from There is a wide variety of online help available for learning SketchUp. This is a good place to start, The software is generally quite intuitive to use and also has a built-in interactive help facility.


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 Volume 8 (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 designPH

  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.