Design Support
PHPP Software
Sophisticated modelling software for real-world accuracy
A clear understanding of the calculations and predictions involved in low-energy building relies upon the use of accurate modelling software. Based on dynamic thermal simulations validated by data gathered from hundreds of low-energy buildings, the German Passive House Planning Package (PHPP) is the software we use to calculate energy use and CO₂ emissions. PHPP’s level of sophistication enables it to take into account a wide range of variable characteristics which affect heat loss and subsequent energy use, allowing for a superior fit between predicted energy use and real-world performance.
Suitable for both residential and many non-residential applications, PHPP is supported by Certified Training Courses to help you get the most from this software.
Passive House Planning Package (PHPP) Version 7 (2012)

The Passivhaus Planning Package (PHPP) is a design tool produced by the Passivhaus Intitut Germany for use by building architects and designers. PHPP incorporates the energy specifications for quality-approved Passivhaus buildings from the Institut in a manual and CD-Rom. PHPP contains a series of tools for:
- Calculating energy balances
- Designing comfortable ventilation
- Calculating the heat load
- Summer comfort calculations
- Other useful tools for reliable design of Passivhaus dwellings
The software and user manual are now available from the Passivhaus Trust via the AECB for £150.00 inc VAT
Price: £150.00
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Certified Passivhaus Designers/ Consultants
A number of UK architects and Consultants have undertaken the Certified Passivhaus Designer/ Consultant training and are qualified to help with the design of your Passivhaus building.
The full list of Certified Passivhaus Designers/Consultants in the UK can be found here.





