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Building regulations guidance and reports

Practical guidance on how to comply with the Building Regulations.

As guidance is reviewed and changes made we will publish separate Approved Documents. 

Each document contains guidance, examples and solutions for building work to comply with the Building Regulations. 

In addition, the Welsh Government publish circular documents which highlight when changes have been made to the Approved Documents and reports undertaken on behalf of the Welsh Government. 

The Approved Documents held on this website are the current versions. Archived versions of previous Approved Documents can be found on the National Library Archives.

Welsh Government Sprinkler Pilot Study Interim Report

The Interim Sprinkler Pilot Study Report contains the methodology, analysis, findings and interim conclusions based on learning experiences to November 2015.

Householders Guide to Fire Sprinklers

The householders guide provides information for new homeowners on domestic fire sprinkler systems.

Videos on changes to Part L and Part B

Short films about the recent changes to changes to Building Regulations Part L (Conservation of Fuel and Power) and Part B (Fire Safety – Domestic Sprinklers).

Building work, replacements and repairs to your home

What you need to do if you are thinking about building work, replacement or repairs to your home.

Workmanship and materials

How work is carried out and the materials used are important when trying to achieve building standards.

Cost benefit analysis of residential sprinklers for Wales

This report examines the costs and benefits of sprinklers in: houses; purpose built and converted flats; houses of multiple occupation; residential care homes; residential colleges; boarding schools; and student halls of residence.