Making Listed Homes Warmer Through Sensitive Retrofit

Listed does not have to mean cold

A reported retrofit at a Grade I-listed Tudor manor reduced annual running costs from around £55,000 to £500. The figures are striking, but they are not a promise of what every home can achieve. The project at Athelhampton House involved a tailored combination of renewable energy and heating systems, designed around the character and needs of that particular building.

The wider challenge is significant. A new report warns that England’s roughly 350,000 listed buildings risk becoming uninhabitable unless retrofit rules are simplified. But for owners of listed and older homes, improving comfort does not have to mean sacrificing historic character. Carefully chosen measures can reduce draughts and heat loss while respecting original features.

Start by understanding the building

Older homes vary widely in how they were built and how they manage moisture and ventilation. Before choosing products or equipment, take time to understand where heat is being lost, how the building is used and which features matter most to preserve.

This is particularly important before adding insulation. The right solution depends on the construction and condition of the property; an approach that suits one home may not suit another. A whole-building assessment from a specialist with experience in traditional buildings can help identify priorities and flag potential issues early.

Consider small, sensitive improvements

Draught-proofing doors and windows may help reduce uncomfortable cold spots. Secondary glazing can be worth exploring where original windows should be retained, as it may improve comfort without replacing historic frames.

Insulation may also have a role, including in roofs or floors where appropriate. The details matter: materials and installation should suit the building, rather than trap moisture or damage historic fabric. For practical guidance, see Historic England’s advice on adapting historic buildings for energy and carbon efficiency.

Heating upgrades are another option to assess. It may be useful to consider them alongside improvements that reduce heat loss, rather than treating a new heating system as a stand-alone fix. Equipment, wiring, pipework and the building’s existing features all affect what may be suitable.

Check consent before work begins

Planning and consent requirements vary, and a listed home may need a different approach from an unlisted property. In England, listed building consent may be needed for alterations that affect a building’s special architectural or historic interest. Whether consent is required depends on the proposed work and the building.

Contact your local planning authority or listed-building officer early, and check before commissioning or starting work. Specialist advice can help you understand the likely impact of each measure, what permissions may apply and how to reduce unnecessary changes to the building.

A practical first step

Make a short list of the rooms or features that feel coldest, note any draughts or signs of damp, and gather information about previous alterations and heating costs. Then speak to a conservation-aware retrofit professional and your local authority before settling on a plan.

Sensitive improvements can make a meaningful difference, but the best route is specific to the home. For more ideas and practical inspiration, explore Improve Magazine.