Domna

Domna is a UK-based, technology-led home retrofit company that helps portfolio landlords — including housing associations, local authorities, and institutional investors — plan and deliver energy-efficiency upgrades across their housing stock. Founded in 2023 by CEO Anna Moore, the company combines remote, software-driven retrofit assessments with an in-house delivery team that manages on-the-ground project execution, from initial survey through installer scheduling and grant/funding navigation. Domna's platform applies machine learning to model retrofit scenarios, drawing on a dataset of billions of data points to predict energy savings and cost-effectiveness with over 97% accuracy, and issues a digital 'building passport' for ongoing data management and compliance reporting. Its services are PAS2035 compliant and delivered at scale — the company serves roughly 15,000 homes per year across the UK. Domna has partnered with the National Residential Landlords Association (NRLA) to extend its retrofit services to smaller landlords in addition to large institutional portfolios, and has pursued a buy-and-build strategy backed by private equity firm Leon Capital, acquiring and consolidating smaller retrofit and installation businesses (including Retro Team, formerly the Warmfront Team) under the Domna Group umbrella. Domna's core value proposition is that retrofit-driven energy improvements can produce a 20% to 70% valuation uplift on retrofitted residential properties, positioning the company at the intersection of proptech, construction technology, and climate/decarbonization infrastructure for the UK's aging housing stock.