NABERS Design for Performance

What Is Design for Performance?

Design for Performance (DfP) is the NABERS UK framework administered by CIBSE that predicts a building’s operational energy performance before it is occupied.  At KJ Tait, we use IES VE Apache HVAC to model HVAC systems in detail, ensuring accurate energy predictions and a robust NABERS Target Rating.

Why Choose NABERS UK Design for Performance?

This framework helps reduce energy demand in new and refurbished office buildings. It closes the performance gap between design intent and real-world energy use. By applying DfP, you can:

• Improve energy efficiency
• Achieve Net Zero Carbon goals
• Attract blue-chip tenants
• Reduce capital costs with right-sized plant and equipment

Our Approach to Energy Efficiency

We lead sustainability from the earliest design stages. Our team identifies opportunities such as:

• Enhanced building fabric and reduced thermal bridging
• Advanced HVAC controls
• Smart energy monitoring and BMS reviews

At the end of Stage 4, we provide a Simulation Report and a Rating Achievement Plan. These outline the predicted NABERS rating and steps to achieve it, including Soft Landings and operational energy monitoring.

Independent Design Review and Validation

To ensure credibility, we work with an Independent Design Reviewer (IDR). They validate the design and modelling before approving the NABERS Target Rating. This allows you to market your building confidently.

From Design to Operational Performance

After one year of at least 75% occupancy, a NABERS UK operational assessment confirms the actual rating using real energy data. If there’s a gap between the target and actual rating, we provide recommendations to improve performance.