BS 40104:2025 Retrofit Assessment for Domestic Dwellings - Code of Practice

Introducing the BS 40104:2025, a comprehensive standard that sets the benchmark for retrofit assessments in domestic dwellings. This code of practice is an essential resource for professionals in the construction and housing sectors, providing detailed guidance on evaluating and implementing retrofit projects to enhance the energy efficiency and sustainability of residential properties.

Overview

The BS 40104:2025 is a meticulously crafted standard that addresses the growing need for sustainable housing solutions. As the world moves towards greener living, retrofitting existing homes to improve energy efficiency has become a priority. This standard offers a structured approach to assessing domestic dwellings, ensuring that retrofit projects are carried out effectively and in compliance with the latest industry practices.

Key Features

• Standard Number: BS 40104:2025
• Pages: 106
• Release Date: September 24, 2025
• ISBN: 978 0 539 21602 8
• Status: Standard

Why Choose BS 40104:2025?

The BS 40104:2025 is not just a standard; it is a commitment to excellence in the field of retrofit assessments. Here are some reasons why this code of practice is indispensable:

Comprehensive Guidance

With 106 pages of in-depth information, this standard provides a thorough understanding of the retrofit assessment process. It covers everything from initial evaluations to the implementation of retrofit measures, ensuring that every aspect of the project is addressed.

Up-to-Date Practices

Released on September 24, 2025, the BS 40104:2025 reflects the latest advancements and best practices in the industry. It is designed to keep professionals informed and equipped to handle the challenges of modern retrofit projects.

Enhanced Energy Efficiency

By following the guidelines set out in this standard, professionals can significantly improve the energy efficiency of domestic dwellings. This not only reduces energy consumption and costs but also contributes to a more sustainable environment.

Quality Assurance

Adhering to the BS 40104:2025 ensures that retrofit projects meet high-quality standards. This code of practice provides a framework for consistent and reliable assessments, enhancing the credibility and reputation of professionals in the field.

Who Should Use This Standard?

The BS 40104:2025 is designed for a wide range of professionals involved in the retrofit industry, including:

• Architects and Engineers
• Construction Managers
• Energy Assessors
• Building Inspectors
• Policy Makers and Regulators

Conclusion

The BS 40104:2025 Retrofit Assessment for Domestic Dwellings - Code of Practice is an invaluable resource for anyone involved in the retrofit industry. Its comprehensive guidance, up-to-date practices, and focus on energy efficiency make it a must-have for professionals committed to excellence and sustainability. By integrating this standard into your projects, you can ensure that your retrofit assessments are thorough, reliable, and aligned with the latest industry standards.

Invest in the future of sustainable housing with the BS 40104:2025 and lead the way in creating energy-efficient, environmentally friendly homes.

BS 40104:2025

This standard BS 40104:2025 Retrofit assessment for domestic dwellings. Code of practice is classified in these ICS categories:

• 91.140.10 Central heating systems
• 91.120.10 Thermal insulation of buildings