Which design?
The choice of designs is infinite, but nearly all are based on a few fundamental styles.
Victorian
This has a ridged roof and a multi-faceted end wall creating a rounded effect.
Edwardian
Here a ridged roof is combined with a rectangular base, giving the classical feel of the Victorian but with greater use of space.
Lean-to
Also sometimes known as Mediterranean or sun-room, this is the simplest design, with a single-sloped roof and usually the longer wall adjoining the house. It is also a useful style for fitting into a corner.
Edwardian Gable
The ridged roof meets a gabled end, resulting in very clean lines that suit many modern homes.
P-Shape, L-Shape, T-Shape, U-Shape
Combine any of the above and the choices take on a massive scope.
Bespoke
You can also choose the bespoke option and create a truly individual design.
Off the wall
You can take the glass panels right to ground level or you can build low walls for the framed glass to sit on. For a Sunroom or Orangery design the corners of the building could be built to full height and have a glazed lantern roof system, it all depends on how elaborate, traditional or contemporary you want your conservatory to be.
A fully built and glazed extension can have large glass windows and doors with glass roof panels and lanterns built into the roof areas to provide a beautifully bright and sunny room.

Roof Design for Bespoke Shape Conservatory

Glazed Extension with interesting-feature-roof lantern

Large Gable Conservatory
Which frame materials?
There are three main choices of frame materials.
Aluminium
This material incorporates thermal breaks for enhanced heat insulation, is a popular choice and is now available in a range of colours and finishes.
UPVC
This is the most popular frame material with its long life expectancy and minimal maintenance, especially as nowadays a range of woodgrain-effect finishes combine the authentic look of wood with all the toughness of PVC-U.
Wood
A natural choice for people who like the real thing. Modern timber conservatories incorporate aluminium roof cappings to reduce maintenance.