UK Energy Assessors

For UK EPC and Building Regulations compliance information please visit our Certification UK and Ireland Approved Versions page

You must be logged in to download the software. If you do not have a login and password, click here to register.

  • For a free evaluation install DesignBuilder then select Help->License... and click the Evaluate button. Enter your contact details and you will be emailed an evaluation code valid for 30 days.
  • If you have a previous version of DesignBuilder installed you must uninstall it from Control Panel -> Add or remove programs before running this download to install the new version.

DesignBuilder v6.1.7.007

Download (485 MB)

DesignBuilder-6.1.7.007.msi

Current release, suitable for: SBEM, DSM, EnergyPlus Simulations, Daylighting and CFD.

To be used for EPC generation from 21 September 2020.

Important note: You must check the Approved Versions page before using DesignBuilder for Certification purposes.

DesignBuilder v6.1.0.006

Download (490 MB)

DesignBuilder-6.1.0.006.msi

Current release, suitable for: SBEM, DSM. EnergyPlus Simulations, Daylighting and CFD.

Important note: You must check the Approved Versions page before using DesignBuilder for Certification purposes.

archive Final Patch for SBEM 5.6a - 64bit

Download (17.86 MB)

SBEMv56aFinalPatch.zip

You must download and install SBEMv56aFinalPatch when using DesignBuilder v6.1.0 for XML generation after 15th September.

EPC and BRUKL calculations can still be made without the patch but XMLs will not be generated or lodge.

There are two patches included in the zip file.

  • PatchE+W.exe should be installed if you need to generate an English or Welsh XML.
  • PatchSCO.exe  should be installed if you need to generate a Scottish XML (EPC or Section 63)

If you are switching between assessments in England/Wales and Scotland then re-install the relevant patch for that region.

Once the patch is downloaded, extract the files and double click on whichever patch you need to use.

If you have any problems with the installation process or if you need the 32-bit patch please contact DesignBuilder Support.

DesignBuilder v6.1.1.006 for Republic of Ireland NEAP

Download (493 MB)

DesignBuilder-6.1.1.006.msi

DesignBuilder v6.1.1 interface approved only for Republic of Ireland NEAP using SBEM v5.5.h

Important note: You must check the Approved Versions page before using DesignBuilder for Certification purposes.

archive Patch for SBEM 5.5.h Ireland - 64bit

Download (3.94 MB)

Patch02_DB_v6_SBEMIE_x64.zip

You must download and install this patch for DesignBuilder when using SBEM v5.5.h for Ireland. When you have downloaded the patch installation file please follow the installation instructions contained in the Readme.txt file which is one of the files included in the zip file.

 If you have any problems with the installation process or if you need the 32-bit patch please contact the DesignBuilder Support Desk.

spreadsheet Construction and Glazing U-Value Calculator for Republic of Ireland NEAP

Download (51 KB)

2017NEAPLibraryandInferenceCheckerv1.xlsx

This Construction and Glazing U-Value Calculator spreadsheet tool can be used alongside the approved DesignBuilder v6.1.1 to define the construction and glazing properties for the SBEM "inference" and "library" methods for Republic of Ireland SBEM calculations.

Note that this tool is not required for England, Wales, Scotland and N Ireland because the UK NCM "inference" and "library" methods are already integrated within DesignBuilder.

DesignBuilder v5.0.2.003

Download (233.63 MB)

SetupDB502003.exe

Suitable for: EnergyPlus Simulations, Daylighting, CFD and SBEM.

Important note: You must check the Approved Versions page before using DesignBuilder for Certification purposes.

archive Final Patch for SBEM 4.1g - 64 bit

Download (6.53 MB)

SBEMv41gFinalPatch.zip

You must download and install SBEMv41gFinalPatch when using DesignBuilder v5.0.2 for XML generation in Northern Ireland after 15th September 2020.

EPC and BRUKL calculations can still be made without the patch but XMLs will not be generated or lodge.

Once the patch is downloaded, extract the files and double click on PatchNI.exe.

DesignBuilder v4.2.0.054

Download (196.79 MB)

SetupDB420054.exe

Suitable for: EnergyPlus Simulations, Daylighting, CFD and SBEM

Important note: You must check the Approved Versions page before using DesignBuilder for Certification purposes.

DesignBuilder v.2.3.6.007

Download (86.42 MB)

SetupDB236007.exe

This is the version recommended for UK Part-L work requiring calculations according to Part-L 2006 and Part F Northern Ireland using SBEM 3.5. It is approved by CLG but is out of date for lodging EPCs using the England and Wales Landmark register.

This is also the version required for generating BERs in Republic of Ireland.

Important note: You must check the Approved Versions page before using DesignBuilder for Certification purposes.

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  • +44 (0) 1453 755500
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