Planning permission and building regulations can be confusing when you are looking to upgrade your conservatory roof, build a new conservatory, or build a solid conservatory extension. Most projects will fall under permitted development, but there are instances where they won’t, and you will need to apply for and gain planning permission. This typically adds 8 weeks to smaller projects and up to 13 weeks to large projects. This article covers everything you need to know about planning permission and building regulations.
| Feature | Planning Permission | Permitted Development (PD) | Building Regulations |
| Standard Extension | Required if exceeding PD limits (e.g., >4m depth for detached). | Allowed for most rear/side extensions within size limits. | Always required for structural safety and insulation. |
| Glazed Conservatory | Usually not required under PD. | Standard rights apply (max 4m height, 50% land rule). | Exempt if < 30 sqm, separated by a door, and has independent heating. |
| Solid Roof Upgrade | Rarely required unless the ridge height increases. | Usually covered by PD as a “material change.” | Required for structural weight and thermal insulation. |
| Conservation Area | Required for most visible changes (side extensions/cladding). | Significantly restricted; often removed by “Article 4.” | Always required for any structural/thermal work. |
We are the leading installer of conservatory roofs in Newcastle and across the North East. We will work with you to install a replacement conservatory roof and can also completely upgrade your conservatory or build a new extension. Get in touch with our team to receive your free quote.
What is Permitted Development?
Permitted development only applies to houses and doesn’t apply to flats, maisonettes or properties in conservation areas. The current legislation is the 2015 order, which allows homeowners and developers to upgrade properties without needing planning permission. Most small home improvement projects, such as installing a new conservatory roof, are covered, and conservatories are often covered as long as they follow a couple of specific rules. (If it exceeds 4m in height (3m within 2m of a boundary), covers over 50% of your garden, extends >3m (semi/terraced) or >4m (detached) from the original house, or sits at the front/side.) Conservation areas and listed buildings are different; you will need planning permission for any improvements. Listed protection is much stricter than that of a conservation area. You will still need to follow building regulations on most projects.
What is Planning Permission?
Planning permission is legal approval from the local authority’s planning department to carry out construction, change the use of a building or develop land. It is always required for listed buildings, and their requirements are very strict. Conservation areas are likely to also require planning permission because they are areas of significant and/or natural importance. This is more relaxed, but you will typically need to follow a design similar to that of other buildings in the area, such as your neighbours’ properties. We can advise you on whether you need planning permission, and we regularly help our clients navigate the planning process.
What is a Conservation Area?
A conservation area is an area of historical or natural interest that is therefore protected. In these areas, permitted development is likely not applicable, and you will require planning permission to upgrade your property. This also extends to just replacement roofs for current structures, and it’s always recommended to check first before proceeding with an extensive project. This is less strict than listing a building, but it will still add typical delays to the project.
How Long Does Planning Permission Typically Take?
Typically, planning permission takes 8 weeks for standard projects. More complex or larger projects take up to 13 weeks from application to approval. Delays in the process can make it take longer and fail to provide full information. This is why we support our clients in cases in which planning permission is required.
What Are Building Regulations?
Changing the thermal performance and weight of your conservatory with a conservatory roof will always require building regulation approval and compliance. The new roof must comply with regulations on thermal insulation (Part L), structural integrity to support the increased load, and fire safety. When you are creating a new living area, such as an extension, this also applies. Building regulations are designed to promote fire, structural, and resident safety. They are important because they ensure living spaces are safe from fire and maintain structural integrity.
If you are looking to replace your conservatory roof, or need a completely new extension or a conservatory in Newcastle, we have you covered. We will support you with all planning and comply closely with building regulations to ensure your project is fully compliant. Get in touch with our team to receive your free quote.