Documents - DesignBuilder Software Ltd Earlier versions of DesignBuilder that you may need to download for special reasons. Free evaluations are not available for previous versions of DesignBuilder.

For UK EPC and Building Regulations compliance version downloads 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.

]]> https://designbuilder.co.uk/download/previous-versions?format=html Wed, 18 Mar 2026 11:00:00 +0000 en-GB hourly 1 DesignBuilder v2025.1.1 https://designbuilder.co.uk/download/previous-versions/836-designbuilder-v2025-1-1-003-1?format=html DesignBuilder v2025.1.1 Current v2025.1.1.003 release suitable for: EnergyPlus Simulations, Daylighting, CFD and Part-O Overheating simulations.

See also DesignBuilder New Version Feature list

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

]]> https://designbuilder.co.uk/download/previous-versions/836-designbuilder-v2025-1-1-003-1?format=html Current v2025.1.1.003 release suitable for: EnergyPlus Simulations, Daylighting, CFD and Part-O Overheating simulations.

See also DesignBuilder New Version Feature list

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

]]> andy.tindale@designbuilder.co.uk (Andy Tindale) Previous Versions of DesignBuilder Wed, 18 Mar 2026 11:00:00 +0000 DesignBuilder v2025.1 https://designbuilder.co.uk/download/previous-versions/833-designbuilder-v2025-1-0-092-1?format=html DesignBuilder v2025.1 Previous v2025.1.0.092 release suitable for: EnergyPlus Simulations, Daylighting, CFD and Part-O Overheating simulations.

See also DesignBuilder New Version Feature list

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

]]> https://designbuilder.co.uk/download/previous-versions/833-designbuilder-v2025-1-0-092-1?format=html Previous v2025.1.0.092 release suitable for: EnergyPlus Simulations, Daylighting, CFD and Part-O Overheating simulations.

See also DesignBuilder New Version Feature list

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

]]> andy.tindale@designbuilder.co.uk (Andy Tindale) Previous Versions of DesignBuilder Wed, 12 Nov 2025 12:00:00 +0000 DesignBuilder v7.3.1.003 https://designbuilder.co.uk/download/previous-versions/787-designbuilder-v7-3-1-003?format=html DesignBuilder v7.3.1.003

]]> https://designbuilder.co.uk/download/previous-versions/787-designbuilder-v7-3-1-003?format=html

]]> mike.bienemann@designbuilder.co.uk (Mike Bienemann) Previous Versions of DesignBuilder Fri, 31 Jan 2025 10:00:00 +0000 DesignBuilder v7.2.0.032 https://designbuilder.co.uk/download/previous-versions/678-designbuilder-v7-2-0-032?format=html DesignBuilder v7.2.0.032
For use in England, Scotland and Wales for Part-L, Section 6 and Section 63

Superseded by DesignBuilder v7.3.1

Important note: You must check the Approved Versions page before using DesignBuilder for Certification purposes.]]> https://designbuilder.co.uk/download/previous-versions/678-designbuilder-v7-2-0-032?format=html
For use in England, Scotland and Wales for Part-L, Section 6 and Section 63

Superseded by DesignBuilder v7.3.1

Important note: You must check the Approved Versions page before using DesignBuilder for Certification purposes.]]> andy.tindale@designbuilder.co.uk (Andy Tindale) Previous Versions of DesignBuilder Sun, 05 May 2024 11:19:26 +0000 SBEM/DSM 6.1.e Patch04 https://designbuilder.co.uk/download/previous-versions/702-sbem-dsm-6-1-e-patch04?format=html SBEM/DSM 6.1.e Patch04 This patch is required for DesignBuilder v7.2.0.032.

For more details on installing and using the patch see our SBEM 6.1.e Patch04 KB article.

 

]]> https://designbuilder.co.uk/download/previous-versions/702-sbem-dsm-6-1-e-patch04?format=html This patch is required for DesignBuilder v7.2.0.032.

For more details on installing and using the patch see our SBEM 6.1.e Patch04 KB article.

 

]]> luis.sousa@designbuilder.co.uk (Luis Sousa) Previous Versions of DesignBuilder Sun, 05 May 2024 00:00:00 +0000 SBEM/DSM 6.1.e Patch03 https://designbuilder.co.uk/download/previous-versions/766-sbem-dsm-6-1-e-patch03?format=html SBEM/DSM 6.1.e Patch03 This patch is required for DesignBuilder v7.2.0.032.

For more details on installing and using the patch see our SBEM 6.1.e Patch03 KB article.

]]> https://designbuilder.co.uk/download/previous-versions/766-sbem-dsm-6-1-e-patch03?format=html This patch is required for DesignBuilder v7.2.0.032.

For more details on installing and using the patch see our SBEM 6.1.e Patch03 KB article.

]]> luis.sousa@designbuilder.co.uk (Luis Sousa) Previous Versions of DesignBuilder Sun, 05 May 2024 00:00:00 +0000 DesignBuilder Results Viewer 4.1 https://designbuilder.co.uk/download/previous-versions/743-resultsviewerinstall-4-1-2-1?format=html DesignBuilder Results Viewer 4.1 https://designbuilder.co.uk/download/previous-versions/743-resultsviewerinstall-4-1-2-1?format=html luis.sousa@designbuilder.co.uk (Luis Sousa) Previous Versions of DesignBuilder Tue, 09 Jan 2024 00:00:00 +0000 DesignBuilder Results Viewer 4.0 https://designbuilder.co.uk/download/previous-versions/701-resultsviewerinstall-4-1?format=html DesignBuilder Results Viewer 4.0 https://designbuilder.co.uk/download/previous-versions/701-resultsviewerinstall-4-1?format=html luis.sousa@designbuilder.co.uk (Luis Sousa) Previous Versions of DesignBuilder Thu, 20 Apr 2023 00:00:00 +0000 SBEM/DSM 6.1.e Patch01 https://designbuilder.co.uk/download/previous-versions/682-sbem-dsm-6-1-e-patch01-1?format=html SBEM/DSM 6.1.e Patch01
This patch is required for DesignBuilder v7.1.4.007 for English BRUKL calculations in which the building has a District Heating System.

For more details on installing and using the patch see our SBEM 6.1.e Patch01 KB article.]]> https://designbuilder.co.uk/download/previous-versions/682-sbem-dsm-6-1-e-patch01-1?format=html
This patch is required for DesignBuilder v7.1.4.007 for English BRUKL calculations in which the building has a District Heating System.

For more details on installing and using the patch see our SBEM 6.1.e Patch01 KB article.]]> luis.sousa@designbuilder.co.uk (Luis Sousa) Previous Versions of DesignBuilder Wed, 08 Feb 2023 00:00:00 +0000 DesignBuilder v7.1.4.005 https://designbuilder.co.uk/download/previous-versions/811-designbuilder-v7-1-4-005?format=html DesignBuilder v7.1.4.005 https://designbuilder.co.uk/download/previous-versions/811-designbuilder-v7-1-4-005?format=html mike.bienemann@designbuilder.co.uk (Mike Bienemann) Previous Versions of DesignBuilder Thu, 26 Jan 2023 08:51:57 +0000 DesignBuilder v7.0.2.006 https://designbuilder.co.uk/download/previous-versions/760-designbuilder-v7-0-2-006-2?format=html DesignBuilder v7.0.2.006
Important: NOT Approved for UK SBEM/DSM work!
Use DB v6.1.8.021 or DB v7.2.0.032 instead available at:
https://designbuilder.co.uk/download/uk-energy-assessors

Part O Overheating simulation rules are available in v7.2.0.032 and later]]> https://designbuilder.co.uk/download/previous-versions/760-designbuilder-v7-0-2-006-2?format=html
Important: NOT Approved for UK SBEM/DSM work!
Use DB v6.1.8.021 or DB v7.2.0.032 instead available at:
https://designbuilder.co.uk/download/uk-energy-assessors

Part O Overheating simulation rules are available in v7.2.0.032 and later]]> mike.bienemann@designbuilder.co.uk (Mike Bienemann) Previous Versions of DesignBuilder Fri, 02 Dec 2022 10:00:00 +0000 DesignBuilder v6.1.8.021 https://designbuilder.co.uk/download/previous-versions/425-designbuilder-v6-1-8-021-1?format=html DesignBuilder v6.1.8.021 Suitable for: SBEM/DSM (5.6b), EnergyPlus Simulations, Daylighting and CFD.]]> https://designbuilder.co.uk/download/previous-versions/425-designbuilder-v6-1-8-021-1?format=html Suitable for: SBEM/DSM (5.6b), EnergyPlus Simulations, Daylighting and CFD.]]> luis.sousa@designbuilder.co.uk (Luis Sousa) Previous Versions of DesignBuilder Mon, 11 Jan 2021 00:00:00 +0000 DesignBuilder Results Viewer 3.1 https://designbuilder.co.uk/download/previous-versions/614-resultsviewerinstall-3-1-1?format=html DesignBuilder Results Viewer 3.1 https://designbuilder.co.uk/download/previous-versions/614-resultsviewerinstall-3-1-1?format=html luis.sousa@designbuilder.co.uk (Luis Sousa) Previous Versions of DesignBuilder Mon, 15 Jul 2019 00:00:00 +0000 DesignBuilder v6.1.8.021 ** For South Africa SANS 10400-XA ** https://designbuilder.co.uk/download/previous-versions/378-designbuilder-v6-for-south-africa-sans-10400-xa-1?format=html DesignBuilder v6.1.8.021 ** For South Africa SANS 10400-XA ** This version is approved for use in South Africa for the SANS 10400-XA calculations. Please contact GreenPlan for more information about the software, licensing and evaluation.

]]> https://designbuilder.co.uk/download/previous-versions/378-designbuilder-v6-for-south-africa-sans-10400-xa-1?format=html This version is approved for use in South Africa for the SANS 10400-XA calculations. Please contact GreenPlan for more information about the software, licensing and evaluation.

]]> mike.bienemann@designbuilder.co.uk (Mike Bienemann) Previous Versions of DesignBuilder Mon, 21 Jan 2019 03:00:00 +0000 DesignBuilder V5.5.2.007 https://designbuilder.co.uk/download/previous-versions/349-designbuilder-v5-5-2-007?format=html DesignBuilder V5.5.2.007 Version 5 software release.
Previous release, suitable for: EnergyPlus Simulations, Daylighting and CFD.
NOT Approved for UK SBEM/DSM work.

 

]]> https://designbuilder.co.uk/download/previous-versions/349-designbuilder-v5-5-2-007?format=html Version 5 software release.
Previous release, suitable for: EnergyPlus Simulations, Daylighting and CFD.
NOT Approved for UK SBEM/DSM work.

 

]]> mike.bienemann@designbuilder.co.uk (Mike Bienemann) Previous Versions of DesignBuilder Mon, 21 Jan 2019 00:00:00 +0000 DesignBuilder v4.7.0.027 https://designbuilder.co.uk/download/previous-versions/49-designbuilder-v4-7-0-027-1?format=html DesignBuilder v4.7.0.027 https://designbuilder.co.uk/download/previous-versions/49-designbuilder-v4-7-0-027-1?format=html mike.bienemann@designbuilder.co.uk (Mike Bienemann) Previous Versions of DesignBuilder Thu, 07 Apr 2016 03:00:00 +0000 DesignBuilder v4.2.0.054 https://designbuilder.co.uk/download/previous-versions/442-designbuilder-v4-2-0-054-1-1?format=html DesignBuilder v4.2.0.054 https://designbuilder.co.uk/download/previous-versions/442-designbuilder-v4-2-0-054-1-1?format=html luis.sousa@designbuilder.co.uk (Luis Sousa) Previous Versions of DesignBuilder Thu, 02 Oct 2014 00:00:00 +0000 DesignBuilder v3.4.0.041 https://designbuilder.co.uk/download/previous-versions/24-designbuilder-v3-4-0-041?format=html DesignBuilder v3.4.0.041 https://designbuilder.co.uk/download/previous-versions/24-designbuilder-v3-4-0-041?format=html mike.bienemann@designbuilder.co.uk (Mike Bienemann) Previous Versions of DesignBuilder Wed, 16 Apr 2014 11:12:06 +0000 DesignBuilder 2.9.0.002 ** FOR PORTUGAL ONLY ** https://designbuilder.co.uk/download/previous-versions/5-designbuilder-2-9-0-002-for-portugal-only?format=html DesignBuilder 2.9.0.002 ** FOR PORTUGAL ONLY ** Special v2 release for use in Portugal only. Please contact NaturalWorks for more information.

]]> https://designbuilder.co.uk/download/previous-versions/5-designbuilder-2-9-0-002-for-portugal-only?format=html Special v2 release for use in Portugal only. Please contact NaturalWorks for more information.

]]> mike.bienemann@designbuilder.co.uk (Mike Bienemann) Previous Versions of DesignBuilder Fri, 15 Jul 2011 16:11:43 +0000 DesignBuilder v2.4.2.026 https://designbuilder.co.uk/download/previous-versions/23-designbuilder-v2-4-2-026?format=html DesignBuilder v2.4.2.026 https://designbuilder.co.uk/download/previous-versions/23-designbuilder-v2-4-2-026?format=html mike.bienemann@designbuilder.co.uk (Mike Bienemann) Previous Versions of DesignBuilder Wed, 15 Jun 2011 15:43:53 +0000