Conservatory & Orangery Planning Rules

Planning Permission for Conservatories and Orangeries:

In many cases, adding a conservatory or orangery to your home may fall under "permitted development rights," meaning you won't need to apply for planning permission. However, there are certain conditions and limitations that must be met.

The key criteria for conservatories and orangeries under permitted development typically include:

- The conservatory must not extend beyond the rear wall of the original house by 8 metres for detached houses and 6 metres for semi-detached houses. (If the extension is between four and eight metres to the rear of the property, then you must adhere to the neighbour consultation scheme and you have to contact your local planning office).
     

- The height of the conservatory must not exceed 4 metres.
     

- The conservatory must not cover more than 50% of the garden.
     

- Side extensions are subject to different criteria and must not be wider than half of the original house.

If your project exceeds these limits or doesn't meet the specified conditions, you will likely need to apply for planning permission.

Building Regulations:

Even if your conservatory or orangery falls under permitted development, it may still be subject to building regulations. Building regulations ensure that the construction work meets certain safety, energy efficiency, and structural standards. Conservatories or Orangeries are exempt from building regulation when they meet certain requirements that deem it to be a separate structure to the rest of house. This means the structure must be separated by the external wall of the house and have external quaility closing doors or windows between the conservatory or orangery space and the rest of the house. It also has to have an independent heating system. 

Key considerations include:

- Thermal performance: The new structure must comply with insulation requirements to ensure energy efficiency.
     

- Ventilation: Adequate ventilation must be provided to maintain air quality.
     

- Structural stability: The new construction must be structurally sound and capable of withstanding loads.
     

- Glazing: Safety glazing must be used in critical locations to prevent accidents.
     

- Accessibility: If the conservatory is intended for year-round use, it may need to meet certain accessibility standards.

Listed Buildings and Conservation Areas:

- If your property is a listed building or located in a conservation area, additional restrictions may apply.
   

- In such cases, alterations and additions are often subject to more stringent regulations to preserve the character of the property and its surroundings.

Consultation with Local Authorities:

- It's advisable to consult with your local planning authority or a planning consultant before starting any work. They can provide specific guidance based on your location and circumstances.

- You may need to submit detailed plans and specifications as part of the planning application process.

Remember that regulations can change, and local variations may apply, so it's crucial to check with the local planning department or consult a professional for the most up-to-date and accurate information before undertaking any construction work.

The above information is to be taken as a guide and expert advice should be take if you are unsure. Up to date as of January 2022, planning permission guidelines and building regulations for conservatories and orangeries in the UK.