Building Code Board of Appeals Agenda and Packet 2022 10 20

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LLi'auisuyi � �111e Department of Planning and Building Safety L C01.01".%PO-SIN E. 749 Main Street # Louisville CO 80027 # 303.335.4592 # www.LouisvilleCO.aov Boulder's code states that if building costs $500,000 or greater, required to comply with a performance path. They wil have to hire and energy modeler to prove that they are code compliant. She used example showing that Boulder has a fixed EUI target of 11, adding that it is very achievable for a 30,000 square foot warehouse. EUIs can be mixed based on the types of occupancy in the building. She stated that the EUIs are achievable by smaller building because they are based on energy use per square foot and that larger buildings will have a harder time meeting it because they have larger systems and more occupants. All electric constructions systems are more expensive than natural gas systems. McCollough stated that current code requires building to be built as all -electric ready. McCollough used the Multifamily slide, citing the first cost of the Mixed Fuel option of $157,231 as an example and that it includes the all -electric ready infrastructure. The all -electric upfront counterpart is only $135,000 since natural gas would not need to be installed. Berry stated he wanted to make sure that with these options we were taking into consideration the types of building that would be built in Louisville. Dino asked how this would translate into an existing Tenant Improvement of existing space. What are the differences between what is required to provide initially and what a new tenant is now required to provide under a new code that would be adopted. McCollough explained that typically there would be a minimum square footage (about 10,000 square feet in her experience) for a Tenant Improvement to comply with this path, otherwise it would be under the prescriptive path. Dino gave an example of an existing building with multiple tenants using the 10,000 square foot minimum as an example. With100,000 square foot of space and one tenant is looking to build out a 20,000 portion, all the other spaces are occupied, what is the realistic likelihood that the one tenant will be willing to pay for the infrastructure for the entire building to meet that code. McCollough explained that this scenario is something that would need to be worked out.