If you’ve got an old or unused patio, you may be wondering if it’s possible to build a conservatory on it. Before you begin, you need to know whether you’ll need to get planning permission. Also, you need to ensure that your conservatory is constructed according to the correct building regulations.
It’s possible to have a conservatory built on an existing patio, but you’ll need to take care to build it on the right foundation. If your patio is hard, it’s best to dig a 600mm trench. For soft ground, a 1000mm trench is recommended. Once you’ve dug out the foundations, you’ll need to install drainage. If the foundations are too shallow, it could result in subsidence and other major damage. If this is the case, you’ll need to pay for drainage installation.
When it comes to getting planning permission, you’ll need to consult your local authority. This will depend on your property and the amount of land that you have. Some properties have restrictive covenants, which will restrict what you can do on the property.
However, if you’re building on an existing house, it’s likely that you won’t need to apply for planning permission. For some types of renovation, you can also apply to use permitted development rights. If you’re living in Wales or Scotland, this might be different. If you’re working on a listed building, you will need Listed Building Consent.
You’ll also need to check that the conservatory’s doors are fire-proof and provide the proper ventilation if you intend to use it as a kitchen. Your conservatory needs to be separated by quality walls and windows. In critical areas, safety glazing must be installed.
In addition, if you plan on using the conservatory as a kitchen, it’s vital that your windows are energy efficient. The windows and doors in a conservatory need to meet the recommendations that are set out by the building regulations.
When you’re thinking about adding a conservatory to your home, you need to make sure that it’s not too far away from highways or that it will block access to a loft room. You should also ensure that it’s not too high up, or that it doesn’t cover more than half of your garden.
You can find out if your area is eligible for permitted development rights by visiting your local council’s planning website. You’ll also need to contact your neighbours if they object to the change. If they do, you might need to obtain a Neighbour Consultation Scheme approval.
If your conservatory is over 3m wide, you’ll need to apply for a full planning application. If you are adding a large conservatory to a new-build property, you can avoid VAT on the new structure because HMRC will be exempt from it.
The final part of the conservatory construction process involves the installation of new foundations. Your builder will work on the foundations, including the laying of base layers and leveling the floor. They’ll then be finished off with plastering and electrical wiring. You’ll also need to arrange for drainage and pipework. The whole project can take up to six weeks to complete.
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