Guidance · 7 min

A Building Regulations energy-compliance checklist for designers

Nine coordination checks before a domestic project is sent for assessment.

1. Confirm the regulatory route

Record the project type, application history and the standards expected to apply. Transitional arrangements can matter, so do not infer the route from the drawing date alone.

2. Coordinate geometry

Check orientation, areas, volumes, exposed elements, openings and party conditions across plans, elevations and sections.

3. Define the fabric

State buildable wall, roof and floor constructions with target performance and enough information for project-specific calculations.

4. Coordinate services and ventilation

Identify heating, hot water, controls, ventilation, airtightness and renewables at a level appropriate to the stage.

5. Review junctions and openings

Set a credible thermal-bridging approach and obtain window, door and rooflight data.

6. Consider overheating

Review glazing, orientation, shading and ventilation while the architectural design can still respond.

7. Keep an assumptions register

Distinguish confirmed selections from design assumptions and update it when products change.

8. Plan completion evidence

Tell the contractor what must be tested, photographed or documented before work is concealed.

9. Reconcile as built

Do not issue final information from an obsolete design specification. Capture changes and assess their combined effect.

Project-specific advice

Building Regulations guidance and assessment methods can change, and transitional provisions may apply. Confirm the correct route for the particular project rather than relying on a general article.

Official references

Approved Document L Approved Document O Approved Document F Approved Document G Standard Assessment Procedure

Start a conversation

Need this applied to a live project?

Upload the drawings and a few project details. We will review what is needed and confirm the scope before work begins.

Get a quote