Executive summary
As concerns about climate change have risen, and energy costs are increasing, many people are looking for ways to adapt and retrofit their houses to make them more energy efficient. This can be more challenging in a listed building, which has been designated as a result of its special architectural or historic interest in a national context. Local authorities have a statutory duty to have special regard to the desirability of preserving listed buildings, their settings and any features of special architectural or historic interest they possess. This document has been prepared to outline the importance of the historic heritage and issues to consider when looking at energy efficiency in Listed Buildings.
Summary of contents
Around 1.5% of buildings in England and Wales are listed. The document summarises the importance of the climate and ecological emergency and looks at what can be done in listed buildings to help with this. It explains why listed buildings need a special approach and emphasises the importance of carrying out repairs and regular maintenance to save costs later on. It also outlines some low cost, simple improvements that can be undertaken quickly to reduce energy consumption.
Conservation principles, measures and techniques are outlined. It is important to check if planning permission and Listed Building Regulation Approval are required.
Is Listed Building Consent needed?
A key part of the document is a table which lists works to reduce energy bills in listed buildings and indicates whether listed building consent is required. Comments are included to help inform owners or occupiers of listed buildings about particular works.
Examples of works which do not require listed building consent include draught-proofing to doors and windows, loft insulation, low energy light bulbs in existing fittings, repairing window shutters.
Examples of works which do require listed building consent include external insulation to exterior walls, new boiler in new location with new flue, new (first time) central heating system, solar panels on outbuildings where the outbuildings are curtilage listed, underfloor heating.
Where measures may impact on the historic fabric of the building (such as replacing historic single glazed windows with double glazing or solar panels), people are advised to contact the conservation team to discuss.
Specific questions
The document outlines how the Council makes decisions affecting listed buildings and current policy on putting solar panels on both listed buildings and on unlisted buildings in Conservation Areas. A further section outlines the importance of historic glass and gives advice to repair historic windows wherever possible. Information on Energy Performance Certificates (EPCs) is also included.
Case studies
Examples are given of listed buildings where careful siting and design has enabled energy efficiency measures to be undertaken. At Durlston Castle, solar panels and an air source heat pump have been installed, while at Athelhampton House, free standing solar panels, ground and air source heat pumps have been sensitively sited.