I'm a landlord inside the non-public rented sector (PRS), what measures might be installed beneath ECO? Read additional It's the eligibility from the tenant on the property, rather then the landlord, that should be regarded as for ECO4 retrofits. For more recent steps put in on or soon after one https://freeecogrants.co.uk/what-are-the-steps-to-apply-for-free-external-wall-insulation/