Avoice Regulations

Wales Approved Document L

Archived approved software programmes (Part L 2014)

Library captured 10 September 2026 · Source updated 29 August 2026

Approved national calculation methodologies and software programs for buildings other than dwellings in Wales 1

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Source page 1

From 31 July 2014, for use in connection with the calculation of the energy performance of building for the purposes of regulations 25, 25C(a), 26, 26A, 27, 27A and 29 of the Building Regulations 2010.

Approved Versions (2014)* :

Company / vendorSoftware nameSoftware typeEngine / Spec / VersionCurrent approved version (Previous approved version)Date of approval (Previous version approval date)
FI-SBEM
MHCLGiSBEMFI-SBEM software for EPC and Part L 2014SBEM v5.6.bV5.6.b18-Sept-20
SBEM v5.6.aV5.6.a3-Oct-18
SBEM v5.4.bV5.4.b6-Apr-18
SBEM v5.3.a(V5.3.a)(21-Nov-16)
SBEM v5.2.d(v5.2.d)(31-July-14)
G-ISBEM LtdG-ISBEMFI-SBEM software for Part L 2014SBEM v5.6.aV24.07-May-19
SBEM v5.4V22.023-May-18
(V20.0)(20-Feb-17)
(v18.0)(10-Sep-14)
Bentley Systems (UK) LtdOpenBuildings Designer Energy SimulatorFI-SBEM software for Part L 2014SBEM v5.6.bV 10.07.0118-Dec-20
DesignDatabaseFI-SBEM software for Part L 2014SBEM v5.6.aV 26.06.00.1018-Dec-20
SBEM v5.6.aV 26.06.00.1024-Apr-19
SBEM v5.4.bV 26.06.00.0924-Sept-18
SBEM v5.4V 26.06.00.0825-May-18
(V26.04.0.0)(10-Dec-14)
(v26.03.0.0)(18–Sep-14)
DesignBuilder SoftwareDesignBuilder SBEMFI-SBEM software for Part L 2014SBEM v5.6.bV6.1.94-Jan-21
SBEM v5.6.bV6.1.711-Sept-20
SBEM v5.6.aV6.0.18-Apr-19
SBEM v5.4V5.4.025-May-18
(V5.0.3)(21-Mar-17)

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(v4.2.0)(29-Sep-14)
Property – Tectonics LtdLifespan SBEMFI-SBEM software for Part L 2014SBEM v5.6.aSBEM v5.6.a11-Apr-19
SBEM v5.4SBEM v5.4.b18-May-18
(SBEM v5.3a)(21-Mar-17)
(SBEM v5.2d)(18-Sep-14)
IES LtdVirtual EnvironmentFI-SBEM software for Part L 2014SBEM v5.6.bV7.0.1813-Jan-2023
SBEM v5.6.bV7.0.1429-Apr-2022
SBEM v5.6.bV7.0.1314-Oct-2021
SBEM v5.6V7.0.1124-Apr-2019
SBEM v5.4V7.0.105-June-2018
V7.0.105-June-2018
(V7.0.7)(28-Feb-17)
(V7.0.9)(20 Mar-18)
(V 7.0.4)(20-Aug-15)
(v 7.0.3)(17-June-15)
(v 7.0.2)(28-Nov-14)
Elmhurst Energy Systems LtdSBEM OnlineFI-SBEM software for Part L 2014SBEM v5.4V3.0115-May-18
NES LtdNHER SBEM OnlineFI-SBEM software for Part L 2014SBEM v5.2.dNo current approval
(v1.4)(23-Sep-14)
BuildDesk LtdCarbonCheckerFI-SBEM software for Part L 2014SBEM v5.2.dNo current approval
(v1.8.1.004)(23-Sep-14)
DSM
Environmental Design Solution LtdTASDSM software for Part L 2014V 9.5.06 Mar 2020
V 9.4.412 Apr 2019
V 9.4.315 May 2018
(V9.4.1)(2-Mar-17)
(V 9.3.3)(17-July-15)
(v 9.3)(02-Oct-14)
Bentley Systems (UK) LtdDesign SimulationDSM software for Part L 2014No current approval from 4-May-2018
(V26.06.00.05)(28-Feb-17)
(v 26.1.0.0)(30-Apr-15)
IES LtdVirtual EnvironmentDSM software for Part L 2014V7.0.1927-Feb-23
V7.0.1813-Jan-23
V7.0.1429-Apr-22
V7.0.1314-Oct-21
V7.0.1124-Apr-19
V7.0.105-June-18

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(V7.0.9)(20-Mar-18)
(V 7.0.4)(20-Aug-15)
(v 7.0.3)(22-June-15)
DesignBuilder SoftwareDesignBuilder DSMDSM software for Part L 2014V6.0.18-Apr-19
V5.4.025-May-18
(V5.3.0)(26-Mar-18)

* Please note that from time to time this list is revised to include new software applications or new versions of existing ones as they are approved.

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