Let Zero is a project designed to help UK local authorities tackle the issue of poor housing conditions in the Private Rented Sector (PRS), including damp and mould and high carbon emissions. The project will develop an AI-enabled end-to-end solution incorporating an easily-accessible 'One-stop Shop' to support private landlords (especially in fuel-poor areas) in upgrading their properties. Powered by an 'optioneering tool' and integrated local supply chains for retrofit, landlords will have a 'trusted path' tailored to the needs of the property and its occupants. It will provide landlords with: * A trusted support service * A clear pathway to action based on quantified retrofit options * Support accessing grants and finance This will be achieved through the integration of a suite of innovative solutions brought by project partners: * Rapid analysis and characterisation of specific building requirements. * Better cost and energy saving estimations enabled by AI and building geometry data. * Response to design concerns such as space standards for tenants and accessibility using AI. * Innovative retrofit solutions deliverable via local supply chains, tailored to local needs. * Retrofit grant aggregator and new green finance solutions. The project will develop a proof-of-concept PRS One-stop Shop by: * Assessing the needs of landlords and tenants. * Initiating a 200 home renovation programme in South Yorkshire to generate data and learning on retrofit approaches, costs, challenges and performance. * Categorising homes according to building type. Survey and generate 3D models for selected properties. * Developing an AI tool that uses learning from properties in use, solution costs and needs of landlords and tenants to identify and design optimum solutions for retrofit. * Delivering innovation within supply chains, including creating innovative products and developing local installation capability. * Integrating grant funding and finance advice. The One-stop Shop will initially be deployed in South Yorkshire (not-for-profit business model) but designed to be replicated across the UK, tailored to specific needs and local housing types. It will drive growth, innovation and revenue in local supply chains. The 18-month project will be led by South Yorkshire Mayoral Combined Authority, supported by a consortium with expertise in needs of landlords and tenants, provision of advice and guidance, data collation and analysis, optioneering, AI-generated retrofit design, together with manufacturers and installers from retrofit supply chains. This replicable and scalable solution will create commercial opportunities for solution providers as well as benefits to landlords and tenants across the UK, especially in fuel-poor areas, to facilitate a just transition to net-zero.

WRAPT Homes will develop a data-driven, stock-level analysis model that informs the targeted retrofit of homes using modern methods of construction (MMC), and specifies scalable post occupancy evaluation strategies to unlock funding and commercialisation opportunities. WRAPT Homes delivers a whole house retrofit solution for our clients (fabric, heating, ventilation and renewable energies where appropriate). We have a design and delivery methodology using MMC that can deliver a whole house retrofit for our clients. We will provide strong data-led approach to provide the decision making and funding platforms for Housing Associations in a way that: 1\. Provides a compelling data-driven case for a whole house approach across a portfolio. 2\. Facilitates sustainable long-term funding and grant opportunities to bridge the financial gap that a whole house approach might bring. Our feasibility project will develop our data-driven models in partnership with key stakeholders to understand their requirements, limitations, concerns and practical barriers.