How We Help You to Meet Compliance at New Build SAP

At New Build SAP, we always begin Part O compliance by assessing your design using the Simplified Method, the quickest and most cost‑effective route for demonstrating that a dwelling will not overheat. This approach evaluates glazing areas, orientation, shading, ventilation strategy and local climate risk to determine whether the design meets the required thresholds. By starting here, we ensure you’re not paying for unnecessary modelling and that your project follows the most efficient compliance pathway.

If the Simplified Method cannot achieve a pass — often due to large glazing areas, restricted ventilation, or higher‑risk locations — we then progress to full TM59 dynamic thermal modelling. TM59 provides a detailed, hour‑by‑hour simulation using future weather files specific to your region, giving Building Control a robust and fully approved demonstration of compliance. This two‑stage process ensures you receive the most economical solution first, with TM59 used only when essential, giving you clarity, confidence and a smooth route to Part O approval.

Click the link below for a free, no‑obligation quotation today — fast turnaround, clear guidance, and full Building Control approval.