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What is a modular conservatory?

A modular conservatory is a prefabricated structure constructed off-site in controlled conditions. It consists of pre-made components such as base, walls, windows, and roofs, which are then transported to the site and assembled, providing homeowners with a customisable and efficient solution for extending their living space.

prefab conservatory

What type of conservatories can be prefabricated?

All ConservatoryLand products are considered prefabricated. Prefabricated conservatories offer a wide range of options to suit different architectural styles, space constraints, and design preferences. Here are some of our most popular styles:

Orangery – promises both grandeur and versatility. Offering maximum light, yet with a solid and cosy feel. 

Lean-to – Ideal for smaller spaces or contemporary homes, lean-to conservatories feature a simple, minimalist design that maximises natural light and views of the outdoors.

Edwardian – Perfectly suited to all house styles including bungalows, Edwardian-style conservatories amplify the amount of light that enters your home, helping to create the impression of more space.

Victorian – Featuring a classic design with ornate details, Victorian conservatories add a touch of elegance to any home.

Gable – Usually large in size, Gable conservatories suit all property types — including period homes, bungalows and newer builds.

What are the benefits of a modular conservatory?

Here are some of the main benefits of having a modular conservatory: 

  • Customisable options: Doors, windows, roofs, and brick colours can be chosen to suit individual preferences.
  • Short turnaround time: Faster and cleaner installation compared to traditional extensions.
  • Flexibility: Can be easily expanded or modified in the future.
  • Cost-effective: Generally cheaper than building a traditional extension.
  • Energy efficiency: Can be designed with energy-efficient materials and features.
  • Minimal disruption: Installation is typically less disruptive to daily life compared to traditional construction projects.
  • Increased property value: Adds value to the property while enhancing its aesthetics and functionality.

How to build a prefab conservatory kit

Whether you’re building a prefab Orangery or a traditional Edwardian, here are the step-by-step instructions for your build:

  1. Measure the area you plan to build on
  2. Mark out the pad locations, dig a hole for each and line using post cement. 
  3. Lay a foundation block on top and lay the first base section from against your property wall and adjust the leg height until level.
  4. Repeat this step for all modular conservatory base sections.
  5. Measure out insulation sheets and fit them into the base sections. 
  6. Connect the flooring panels.
  7. Once complete, cover it with a polythene sheet. 
  8. Align the new wall with the skirting and secure it into place, followed by the corners. 
  9. Install the window frames and the ring beams and rafters. 
  10. Slide the roof glazing between the rafters, and continue to also do this for the window glazing. 
  11. Secure rafter end caps into place. 
  12. Make the mortar mix to fill in the brick gaps. 
  13. And you’re done!


Do I need planning permission for a modular conservatory?

If your conservatory meets specific conditions, you don’t need planning permission. These conditions make it a permitted development, allowing you to proceed without planning approval. 

However, if your extension exceeds these conditions, you’ll probably need to apply for planning permission. Remember, planning permission and building regulations are separate, so you should address both.

How is a prefab conservatory installed?

Prefab conservatories can be installed by an approved installer or by yourself. We have a national network of Approved Installers to build your conservatory to the highest standard. Or, if you’d rather take on the build yourself, our self-build prefab conservatory kits include easy-to-follow instructions for your own DIY project. 

Affordable prefab conservatory prices

We offer a variety of prefab conservatories at an affordable price, compared to traditional extensions. For all of our conservatory and Orangery prices, please visit our conservatory prices and Orangery cost guide pages.

modular conservatory

Modular extensions for your home

Ready to transform your home with a new prefabricated conservatory? Discover our conservatory ideas for inspiration on how to elevate your living space.

We can help you quickly design your brand-new room using our online quote engine. Whether you want bi-folding doors, a glass roof or a choice of colours, enter your specifications and choose your preferences directly in our tool — it only takes a few minutes to complete.

Get your personalised price today using our quote engine.  

Disclaimer: Please note that the information provided on this page is not legal advice. It is given as a guide only, based on the information outlined at planningportal.co.uk.

The guidance described on this page applies to houses, not flats, maisonettes or other buildings. Other consents may also be required if your home is listed or in a designated area.

The information was correct at the time of publication, but it is subject to change as a result of legislative changes. Before beginning any work, always seek advice from local planning authorities.

Design your own dream conservatory

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