The Chartered Institute of Building has responded to the Public Consultation on Northern Ireland's draft Climate Action Plan 2023-2027. Our response welcomes the ambition of the Draft Climate Action Plan 2023–2027 and the recognition it gives to the built environment as a critical enabler of Northern Ireland’s transition to net zero. However, our response argues that to achieve meaningful emissions reductions from the residential buildings sector, stronger and more coherent action is required across operational and embodied carbon, retrofit delivery, and the circular economy. The response urges the Northern Ireland Executive to adopt a comprehensive national retrofit strategy, integrate embodied carbon reduction as a central pillar of climate policy, and align fiscal measures to reward repair, reuse, and energy-efficient improvement over demolition and rebuild. By embedding these principles into future iterations of the Climate Action Plan, Northern Ireland can not only accelerate progress toward its 2030 and 2050 climate targets but also deliver co-benefits in health, fuel poverty alleviation, and sustainable economic growth for communities across the region.