NABERS Design for Performance

Our energy modellers are upskilled to use the IES programme Apache HVAC so that we can offer the NABERS Design for Performance framework for our office projects.

NABERS Design for Performance, is a robust process that aims to achieve contractual agreements as to how a building is operated once in use. The framework aims to reduce energy demand by designing energy efficient systems and maximising energy savings through good fabric design. The modelling assesses what a new or refurbished building may use with respect to energy demand once in operation, together with this the expected hours of occupation and net lettable area are input and the Target Rating calculated.

All the RIBA Stage 4 design documentation, our Simulation Report with calculated NABERS Target Rating and the Rating Achievement Plan are sent to an Independent Design Reviewer who will comment on the each aspect of the design and ultimately sign off the rating.

So far, we have had three projects signed off via the independent design review process, with 30 Semple Street in Edinburgh being ours and Scotland's first project. This project involves the retention of the structure with a new facade and services. Once completed, the building will be fully decarbonised.

At Clarendon House in Edinburgh, along with completing the modelling to calculate the Target Rating, we have been instructed to produce monthly in-use energy reports that will track the building's NABERS Rating dynamically. At the end of 12 months of 75% occupation, we will produce the NABERS In-Use assessment that should be in line with Target Rating.