The Difference Between a Conservatory, an Orangery and a Full Extension: Which Is Right for Your Home?

 

When you want more living space, choosing between a conservatory, an orangery and a full extension can be confusing. All three can enlarge your home, but they create different types of room.

The simplest way to think about it is this: a conservatory prioritises glass and garden views, an orangery combines glazing with more solid construction, and a full extension feels most like part of the original house. Your choice should reflect use, appearance, budget and approvals.

If you are considering a conservatory or orangery in Kent, our team can explain the practical differences and help you explore a suitable design. Call 01304 379991 or email info@channelwindows.co.uk.

Conservatory, orangery and extension: Differences at a glance

The main difference between a conservatory and an orangery is the balance between glazing and solid structure. Our conservatories are primarily glazed, usually with a pitched roof, while our orangeries use more brickwork, large windows and a roof lantern. A full extension generally has more solid walls and a conventional roof.

If light and garden views are high priorities, explore our bespoke conservatories in Kent.

Category	Conservatory	Orangery	Full extension
Construction	Mostly glazed, often built on a low brick base.	More brickwork with large windows and glazing.	Mainly solid walls with a conventional roof.
Roof style	Usually a pitched glazed or polycarbonate roof.	Typically a solid perimeter roof with a central roof lantern.	Usually a solid flat or pitched roof, sometimes with rooflights.
Natural light	Usually offers the most glazing and strongest garden views.	Very light, but with more solid structure than a conservatory.	Depends on the number and size of windows, doors and rooflights.
Overall feel	Bright and closely connected to the garden.	More substantial and room-like while still feeling light.	Usually feels most like a natural continuation of the existing house.
Layout flexibility	Glazed walls can limit space for furniture, storage or cabinetry.	More solid wall space makes furniture placement easier.	Generally offers the most flexibility for layouts and storage.

 

When does a conservatory make sense?

When comparing a conservatory and an extension, it often comes down to whether you want a highly glazed room or a more conventional internal space. A conservatory can suit homeowners who want natural light, garden views and a room that feels distinct from the house.

Orientation, glazing, ventilation and roof choice all affect comfort, so think beyond appearance alone.

 

 

Why choose an orangery instead of a conservatory?

Comparing an orangery with a conservatory is useful when you want daylight but prefer a more room-like feel. An orangery typically combines brick sections, large windows, a flat perimeter roof and a central roof lantern. This gives you more solid wall space while keeping a strong garden connection.

Our bespoke orangeries in Kent are designed around the property rather than as a one-size-fits-all addition.

 

Orangery vs extension: How do they differ?

For homeowners comparing an orangery with a full extension, the key question is how fully you want the new room to blend into the house. A full extension usually gives greater freedom for solid walls and internal layouts, especially for a kitchen or major open-plan redesign.

An orangery can still feel substantial and integrated while keeping more of the light-filled character of a glazed addition. Compare like-for-like specifications rather than assuming one option will always be cheaper.

 

Do conservatories, orangeries and extensions need planning permission?

In England, conservatories follow the same planning rules as other house extensions. Many projects can fall within permitted development if the relevant limits and conditions are met, and full extensions can do the same in some circumstances. Restrictions can apply  depending on the property type, previous extensions or local planning controls.

Building regulations are separate. A conservatory may be exempt where specific conditions are met, including being at ground level, under 30m², separated from the house by external-quality walls, doors or windows, and having independent heating. A new structural opening into the house requires building regulations approval.

The project label alone does not decide what approval is needed. Check the actual design with your local planning authority and building control body.

 

Which option is right for your home?

Start with how you expect to use the room. Choose a conservatory when natural light and garden connection matter most. Consider an orangery if you want that brightness with more solid structure. A full extension may suit you better if maximum layout flexibility is the priority.

Also consider garden size, orientation and property style. Seeing completed projects can help you narrow your ideas, so take a look at our work gallery.

 

Making the final choice

There is no single option for every home. Compare intended use, natural light, wall space, integration, approvals, disruption and budget together.

If a conservatory or orangery looks right, a site-specific conversation can turn your shortlist into a realistic design.

 

Considering a conservatory or orangery for your Kent home?

Call Channel Windows on 01304 379991 or email info@channelwindows.co.uk to talk through your ideas and request a quote.

 

Frequently asked questions

Is an orangery warmer than a conservatory?

It can be, because an orangery has more solid construction, but comfort depends on the full specification, including glazing, roof, insulation, heating and ventilation.

Is an orangery cheaper than a full extension?

It can be, but not always. Size, glazing, roof design and finishes can narrow the difference, so compare detailed quotations.

Does a conservatory need planning permission?

Not always. In England, conservatories may fall under permitted development when the required limits and conditions are met.

Can an orangery be open plan to the house?

Potentially, but structural changes can bring building regulations requirements, so check the design before work starts.

Do Channel Windows build full house extensions?

Our published services cover conservatories and orangeries rather than general full house extensions. We can help you explore those options and show examples of completed work.