A traditional conservatory or orangery extension to your home can give you extra living space, add value and enhance its appearance. However, if your property is a listed building, there are some points to take into consideration when planning your extension. Here’s a look at the essential steps you need to take before any alterations or extensions are carried out.
What is a listed building?
If you have the privilege of owning a listed property, it’s highly likely that you are already well aware of this fact and the associated duties and responsibilities. However, if there’s any room for doubt, it’s always best to err on the side of caution and check with the local planning authority.
A listed building is a structure that is deemed to have special architectural or historical interest, and has certain legal protections to ensure that it retains its original character. It is often assumed that a building has to be very old to be listed, but this is not always the case. However, buildings less than 30 years old generally will not be listed.
The legal protections cover any alterations, extensions, demolition, change of use, or some types of repairs. These modifications are not banned outright, but it is necessary to seek Listed Building consent to ensure that all regulations are complied with.
Adding a conservatory or orangery
It is possible to add a conservatory or orangery extension to a listed building; in fact many successful such projects have been carried out. However, it’s crucial to follow the correct procedures from the outset to avoid any costly and disruptive issues further down the road.
It is a criminal offence to make any modifications without permission, even if you want to replace or renovate an existing structure. Therefore if there’s the slightest room for doubt, consult the authorities first.
Apply for listed building consent
The first step is to apply for listed building consent from your local planning authority. The authority will consider how well the application will harmonise with the original structure, and if the design and materials are sympathetic to the overall character of the building.
The planning authority will also carry out an impact assessment to measure the effect the proposed modification will have on the historical context and surrounding environment. Choosing a more traditional design, such as a hardwood orangery, may increase the likelihood that your application will be accepted, particularly if you have an older building.
However, a more modern conservatory design will not necessarily be ruled out: in fact, the extensive use of glazing and minimal visual intrusion of a contemporary conservatory might be an advantage. There may also be variations in the attitudes of different local authorities to these matters, so it is important not to make any assumptions and have an open mind.
Planners can also be more open minded than you might expect about combining traditional and modern architectural styles: the aim of a listing is not to preserve the building in the era it was constructed, but to ensure that any modifications are thoughtfully carried out and of a high standard.
Seek professional advice
One of the best ways to increase your chances of a successful application is to seek expert advice. Research suppliers of high quality glazed structures and ask about their previous experience working with similar projects in your area. The designers are likely to be familiar with the local planning authorities and their attitudes to listed buildings.
When you have made a shortlist of potential companies to work with, discuss your plans and arrange for them to visit your property. They will be able to offer well informed opinions about the type and style of glazed extension that would be most suitable for your home, and work in harmony with its character and surroundings.
Submit your application
Your applications should include a detailed architectural design that specifies the type of materials to be used, the size and scale of the extension, and any other relevant information.
It may be that the application is accepted subject to certain conditions or revisions; this is not unusual and your design team will help with the negotiation and revision process. The whole process may take several months, so be prepared to work with longer timescales than you may have anticipated.
However all your hard work could be rewarded with a beautiful light filled living space that enhances the natural charm and character of your home.