I'm a landlord inside the non-public rented sector (PRS), what steps could be mounted under ECO? Examine far more It's the eligibility with the tenant of your assets, rather then the landlord, that should be deemed for ECO4 retrofits. In some instances external insulation may well require setting up authorization. https://freeecogrants.co.uk/4-reasons-to-apply-for-the-eco-grants/