Choose a contemporary roof lantern for a modern or recently extended house: fewer, slimmer glazing bars, a low ridge, minimal sightlines and usually anthracite aluminium. Choose a traditional lantern for a period property or a conservation area: more bars, heavier profiles, a taller pitched ridge and often painted timber. The contemporary style is about maximising glass and disappearing into a modern roofscape. The traditional style is about matching the proportions and detailing of an older building, which conservation officers in Suffolk and north Essex frequently require on anything visible from the street.
The look is not just taste; on a constrained property it decides whether an application is approved. This sits under our main roof lantern installation page.

The four details that separate the styles
The difference between a contemporary and a traditional lantern comes down to four things you can see from the garden, and they move together rather than independently.
| Detail | Contemporary | Traditional |
|---|---|---|
| Glazing bar density | Fewer bars, larger panes | More bars, smaller panes |
| Bar profile and sightlines | Slim, minimal, maximum glass | Heavier, more defined, more frame |
| Ridge detailing | Low, plain, understated | Taller, often with a decorative crest or finial |
| Pitch | Shallower, around 20 degrees | Steeper, more pronounced |
| Typical material and finish | Anthracite or black aluminium | Painted timber, or timber-effect aluminium |
| Suits | Modern and recently extended homes | Period, listed and conservation properties |
Glazing bar density and sightlines
Bars are structure, not decoration, so you cannot simply ask for fewer of them on a large unit, but the two styles handle them differently. A contemporary lantern uses a stronger bar profile to span further between bars, giving fewer, slimmer sightlines and more glass, which reads clean and modern. A traditional lantern accepts more bars and heavier profiles because that denser grid is what matches the divided-light windows of an older building. On a Georgian or Victorian house the denser traditional grid looks right, and a minimal two-bar contemporary unit can look starkly out of place. On a new-build the reverse is true. Our page on roof lantern size for a room covers how bar count follows the unit width.
Ridge detailing and pitch
The ridge is the most visible signature of the style. A contemporary lantern keeps the ridge low and plain, a simple capped line along the top. A traditional lantern often has a taller ridge with a decorative crest or a finial detail at the ends, echoing the ornamental rooflights of Victorian conservatories and orangeries. Pitch follows: contemporary units tend to sit shallower, around 20 degrees, for a lower profile, while traditional units are steeper and more pronounced, which also sheds rain a little faster. Both pitches shed well; the choice is about proportion against the building, not performance.
Match the lantern to the building, not to a showroom photo. A slim anthracite contemporary lantern looks superb on a modern extension and wrong on a thatched Suffolk cottage. A crested timber traditional lantern looks right on a period frontage and heavy-handed on a new-build. The single most common styling mistake we see is a beautiful lantern that simply does not belong on the house it is sitting on.
What conservation areas expect
Style is not always a free choice. Suffolk and north Essex carry an unusually high density of conservation areas and listed buildings, from Lavenham, Dedham and Coggeshall to central Ipswich, and in those settings the conservation officer’s expectations narrow the options.
- On a listed building, listed building consent is required regardless, and a traditional painted timber lantern with denser bars is far more likely to be approved than slim contemporary aluminium.
- In a conservation area, a lantern to the rear and not visible from the street is often acceptable in either style. Anything visible from a public highway usually needs a traditional or conservation-style unit.
- An early conversation with the conservation officer at Ipswich Borough, East Suffolk, Mid Suffolk, Babergh or Colchester saves a refused application, and it often settles the style question for you.
The full consent position is on our roof lantern planning permission page, and the timber route in detail on timber roof lanterns for period properties.
The effect inside the room
Style changes the light and the feel of the room, not just the view from the garden. A contemporary lantern with fewer, slimmer bars puts more glass overhead, so it reads as a cleaner, brighter opening and suits a flat plastered ceiling and a minimal interior. A traditional lantern with denser bars casts a more defined grid of light across the room, which sits comfortably with a period interior, cornicing and heavier joinery. Neither is brighter in any measurable sense at the same glazed area, but the contemporary style feels more open and the traditional style feels more contained, and that impression matters as much as the numbers when you are standing under it every day.
Material follows the style more than it leads it. Contemporary units are almost always aluminium, powder-coated to anthracite grey or black, occasionally dual-colour with a white internal face to soften the look against painted walls. Traditional units are usually painted timber, or a timber-effect aluminium where the maintenance of real timber is unwelcome. The cost gap between the two materials is real and is set out on our aluminium versus timber cost page, so the style decision and the budget decision are worth taking together rather than in sequence.

Related questions
- Is an aluminium roof lantern cheaper than timber? because material and style are linked.
- Roof lantern or frameless glass box? if minimalism is what you are after.
- Roof lantern or flat rooflight? if you are still choosing the product itself.
Get the right style specified
Tell us the property age and whether it sits in a conservation area, and we will recommend a style that suits the building and satisfies the planning position, then quote it. Request a fixed quote for roof lantern installation in Ipswich, Suffolk or north Essex, or see published prices across every service first.
Thinking about this job? We survey across Ipswich, Suffolk and north Essex and give you a fixed price before any work starts, with a 10-year workmanship guarantee.