Home » Courses » NDEA L4

City & Guilds 6361-08

Level 4 – Diploma in Non-Domestic Energy Assessment

Non Domestic Energy Assessor (NDEA) L4
A Non-Domestic Energy Assessor (NDEA) is a certified individual who undertakes energy calculations, using approved Simplified Building Energy Model (SBEM) or Dynamic Simulation Modelling (DSM) software on commercial buildings. The calculations produce a commercial Energy Performance Certificate (EPC). All commercial buildings in the UK require an EPC before marketed sale or let.

The Level 4 Non-Domestic Energy Assessor (NDEA) qualification allows assessors too complete EPCs on all existing commercial buildings with frequently occurring characteristics – this covers a large proportion of the Non Domestic market.

This course will enable you to qualify as a Level 3 and Level 4 Commercial Energy Assessor. If you qualify to Level 4 this will give you access to all Commercial Buildings requiring EPCs.

This course is designed for new entrants with no previous experience necessary, but we do have a minimum level of competency to join, ideal for existing DEA’s there is no exam, however you will be expected to produce a Portfolio of evidence and complete 3 surveys to demonstrate your competence and also complete a short Role Play exercise. We have access to all the buildings required during the course.

Pre Class learning materials are available to view and download on our portal and hard-copies of the learning and reference manual and portfolio guide can be provided for candidates if requested or required.

The Non-Domestic Energy Assessor role is a that requires a good level of methodical competence whilst inspecting many varied commercial buildings and producing Energy Performance Certificates in a professional environment.


£ 1,450
+VAT, Price Includes City & Guilds Registration and certification.
  • Non Domestic Energy Assessor Qualification
  • Only 8 days
  • Sign Up

Timetable of Activities (8 Days)

Day 1

Welcome & Introduction
Building and Construction Types
Course, Structure, Administration and Organisation
Age of Construction, Materials etc
Data Collection, Site Notes, Survey Sheets, Photos, All Evidence Requirements
ISBEM Software Training
Portfolio Introduction

Day 2

Mechanical and Electrical Services
ISBEM Software Training
Mechanical Ventilation
First L3 Case Study
Inputting onto ISBEM Software
Renewable Energy Sources
Control Systems
Lighting & Luminaires

Day 3

ISBEM training
Second L3 Case Study
Inputting onto ISBEM Software
Portfolio Work

Day 4

Third L3 Case Study
Inputting onto ISBEM Software
Advanced data input into iSBEM
Portfolio Work

Day 5

U-Value Calculations
Portfolio Completion
Role Play Exercise

Day 6

L4 Mechanical and Electrical Services
Advanced data input into iSBEM
L4 Mechanical Ventilation
First L4 Case Study
Inputting onto ISBEM Software

Day 7

Second L4 Case Study
Inputting onto ISBEM Software
Portfolio Work

Day 8

Third L4 Case Study
Inputting onto ISBEM Software
U-Value Calculations
Portfolio Completion Work


Do some investigation before you book with any training company! Make sure you ask these questions. Not all companies offer the same package.

Learn more